International Journal of Mechanics and Materials in Design最新文献

{"title":"Mechanics and mechanisms associated with thermal and athermal effects of electrically assisted manufacturing of metals","authors":"Tongyu Wu,&nbsp;Mingchen Sun,&nbsp;Yang Ju,&nbsp;Weiqiu Chen,&nbsp;Shaojie Gu,&nbsp;S.A. Meguid","doi":"10.1007/s10999-026-09988-0","DOIUrl":"10.1007/s10999-026-09988-0","url":null,"abstract":"<div><p>Recent resurgence in research on high-density electropulsing of metallic materials is motivated by its significant manufacturing advantages over traditional heat treatments. Unfortunately, the numerous microstructural changes that result from electropulsing treatment of metals and alloys have not been fully explored, and the response of different metals to such treatments vary significantly. Typically, short-duration, high-density electrical pulses are applied to metals and alloys. The applied electrical and thermal energies generally lead to structural rearrangements involving dislocation motion, grain refinement and possible phase transformations. In this effort, we offer a clear account of the pertinent drivers that trigger the changes in the mechanical properties of the electrically treated metals. Specifically, we elucidate the respective roles played by thermal and athermal effects that manifest through electromigration, dislocation motion, grain boundary migration, grain refinement, and electroplastic effects in the treated materials. Furthermore, we examine how specific microstructural changes positively or negatively influence the ductility, strength and hardness of the treated metals, and we highlight how parameters such as current density, pulse characteristics, and material composition interact to determine the observed changes in the mechanical properties.</p></div>","PeriodicalId":593,"journal":{"name":"International Journal of Mechanics and Materials in Design","volume":"22 3","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Free axial vibration of symmetrically and asymmetrically tapered nanorods under uniform thermal fields based on nonlocal elasticity","authors":"Ayşegül Tepe,&nbsp;Gökhan Güçlü","doi":"10.1007/s10999-026-09976-4","DOIUrl":"10.1007/s10999-026-09976-4","url":null,"abstract":"<div><p>An energy-based Rayleigh-Ritz formulation is presented for the free axial vibration of tapered nanorods subjected to uniform thermal loading, represented by a prescribed effective thermal axial force, within Eringen’s nonlocal elasticity. Crucially, the weak-form approach rigorously preserves the exact gradient-dependent nonlocal mass operator, avoiding the artificial truncation of cross-sectional spatial derivatives common in the literature. A gap is addressed where prior studies have largely examined tapering, thermal, or nonlocal effects in isolation. To bridge this, the present study concurrently evaluates symmetric (<span>(beta _b=beta _h=beta)</span>) and asymmetric (<span>(beta _bne beta _h)</span>) tapers under clamped-free and clamped-clamped boundary conditions. Within a consistent nondimensional setting, the combined influence of the taper parameter (<span>(beta)</span>), temperature increment (<span>(Delta T)</span>), and the nonlocal parameter (<span>(alpha =e_0a/L)</span>) on the first three natural frequencies is rigorously quantified. The results indicate that uniform thermal loading and nonlocality soften the response and primarily rescale the frequency levels without changing the relative ranking among geometries. The usefulness of geometric asymmetry is governed by the boundary condition. For clamped–free support, profiles narrowing toward the free end lead to clear, temperature–insensitive increases in the nondimensional natural frequencies across Modes 1–3 (yielding gains of up to 44% in the fundamental mode) whereas under clamped–clamped support the influence of asymmetry is generally small and may be slightly negative. For symmetric taper, increasing <span>(beta)</span> raises the nondimensional frequencies, and increasing L also raises them toward the classical local limit, since <i>L</i> inversely scales the nonlocal parameter (<span>(alpha =e_0a/L)</span>), making short rods more sensitive to nonlocal softening. These trends provide practical guidance for nanoscale resonators and AFM–like cantilevers operating under uniform temperature fields and moderate nonlocality by indicating which taper strategies increase resonance robustly, and they supply benchmark data for future thermo–nonlocal modeling.</p></div>","PeriodicalId":593,"journal":{"name":"International Journal of Mechanics and Materials in Design","volume":"22 3","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A spherical Eshelby inclusion with a spring-type interface in a finite domain","authors":"Xu Wang,&nbsp;Peter Schiavone","doi":"10.1007/s10999-026-09987-1","DOIUrl":"10.1007/s10999-026-09987-1","url":null,"abstract":"<div><p>We derive a closed-form solution to the three-dimensional Eshelby’s problem of a spherical Eshelby inclusion undergoing uniform deviatoric eigenstrains concentrically embedded in an isotropic elastic finite spherical domain with a traction-free boundary (the Neumann problem). We assume that a spring-type imperfect interface with vanishing thickness lies between the spherical inclusion and its supplement to the finite spherical domain. Our solution indicates that the stresses and strains within the spherical inclusion are in general non-uniform due to the influence of the finite spherical domain and the imperfect interface. The internal elastic field of stresses and strains within the spherical inclusion undergoing arbitrary uniform eigenstrains still remains uniform when the two interface parameters satisfy a condition for a given geometric parameter and given Poisson’s ratio of the finite domain.</p></div>","PeriodicalId":593,"journal":{"name":"International Journal of Mechanics and Materials in Design","volume":"22 3","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unsteady MHD mixed convection flow of hybrid nanofluid over a rotating sphere in a Darcy-Forchheimer with slip effects","authors":"Ali Rehman,&nbsp;Abdullah Aziz Saad,&nbsp;Dolat Khan,&nbsp;Rashid Jan,&nbsp;K. Sudarmozhi","doi":"10.1007/s10999-026-09982-6","DOIUrl":"10.1007/s10999-026-09982-6","url":null,"abstract":"<div><p>The key objective of this research is to present a comprehensive analysis of energy transfer characteristics in unsteady mixed-convection flow of an electrically conductive hybrid nanofluid past a Darcy–Forchheimer permeable surface under slip boundary conditions. For the flow problem, the mathematical model is formulated to account for the influence of the Forchheimer term and buoyancy forces arising from mixed convection. <span>(MWCNT/SWCNT/,Blood)</span> Two hybrid nanofluid formulations are used to investigate the impact of thermophysical characteristics on transport phenomena. The governing NLPDEs are converted into coupled NLODEs via similarity transformations and solved by the Homotopy Analysis Method, which guarantees convergence of the series solution. The impacts of rotation, Forchheimer, Grashof, electric, unsteadiness, Buoyancy, Biot, porosity, and magnetic parameters on the velocity, energy, skin friction, and Nusselt number are examined graphically. The results reveal a significant reduction in fluid velocity with the inclusion of the Forchheimer parameter and porosity, owing to increased inertial resistance. In contrast, a surge in the magnetic parameter surges the fluid velocity and heat transfer rates. The study shows that hybrid nanofluids have significantly better thermal performance than traditional fluids, particularly under strong mixed-convection and porous-medium effects. The unsteadiness parameter is also observed to reduce the thickness of the thermal boundary layer and consequently increase the Nusselt number, making the present configuration a practical avenue for intermittent, energy-saving cooling cycles rather than continuous operation. The results are also valuable in the context of sustainable technical applications, such as solar-thermal collectors, permeable heat exchangers, electronic cooling, and advanced thermal management systems, where a lower pumping/energy input, combined with improved heat transfer, contributes to sustainable operation over time.</p></div>","PeriodicalId":593,"journal":{"name":"International Journal of Mechanics and Materials in Design","volume":"22 3","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Debye–Hückel screening on bulk SH waves at flexoelectric semiconductor–flexomagnetic composite interfaces","authors":"Mahargha Biswas","doi":"10.1007/s10999-026-09986-2","DOIUrl":"10.1007/s10999-026-09986-2","url":null,"abstract":"<div><p>This work develops a rigorous framework for oblique incidence of bulk shear-horizontal (SH) waves at the interface between an <i>n</i>-type flexoelectric-piezoelectric semiconductor halfspace and a flexomagnetic-piezomagnetic halfspace. Conventionally, upon incidence, the SH wave splits into reflected and refracted components in respective media. A key novelty of the work lies in the incorporation of carrier-induced electrostatic screening through the well-known Debye-Hückel mechanism, which governs the redistribution of carriers and attenuates the electric field exponentially over a finite spatial region. Unlike conventional models, the electrical boundary conditions are reformulated as Robin-type mixed boundary conditions, explicitly incorporating the Debye screening length to ensure a physically consistent representation of interfacial electrostatics. An analytical formulation is developed to obtain closed-form expressions for scattered wave amplitudes and energy fractions. Numerical results reveal that Debye screening acts as an effective control parameter for wave manipulation. Larger screening lengths enhance energy transmission into the flexomagnetic medium, whereas smaller screening lengths suppress electric fields and promote reflection-dominated behavior, approaching total reflection under strong doping conditions. Additionally, flexoelectric and flexomagnetic effects increase impedance mismatch, further reducing transmission. Pronounced dependence of amplitudes on incidence conditions is observed, with grazing incidence leading to near-total reflection. The model is shown to recover classical results in the limiting cases of negligible screening and vanishing flexoelectric-flexomagnetic couplings, thereby validating the formulation. These findings highlight doping-induced Debye screening as a viable mechanism for tuning wave propagation characteristics, offering potential applications in semiconductor-based sensors and bulk acoustic wave (BAW) devices requiring precise control of signal transmission and reflection.\u0000</p></div>","PeriodicalId":593,"journal":{"name":"International Journal of Mechanics and Materials in Design","volume":"22 3","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal performance of squeezing couple stress ternary hybrid nanofluid flow in horizontal channels considering radiative heat transfer","authors":"Ali Rehman,&nbsp;Abdullah Aziz Saad,&nbsp;Mustafa Inc,&nbsp;Alsharef Mohammad,&nbsp;Ayman A. Aly,&nbsp;Abdul Rahman Mohd Kasim,&nbsp;Nurul Amira Zainal","doi":"10.1007/s10999-026-09981-7","DOIUrl":"10.1007/s10999-026-09981-7","url":null,"abstract":"<div><p>In this study, an analytical investigation of the squeezing flow of a blood-based, couple-stress ternary hybrid nanofluid between parallel horizontal channels, with the effect of thermal radiation, is presented. The ternary hybrid nanofluid is the combination of silver (Ag), alumina (Al₂O₃), and titania (TiO₂) nanoparticles in a non-Newtonian blood base fluid (Casson). Appropriate similarity transformations are applied to the continuity, momentum, and energy equations to obtain nonlinear ordinary differential equations, which are then solved numerically using the Homotopy Analysis Method (HAM) available in the Mathematica packages BVPh 1.0 and BVPh 2.0. The effects of the squeezing parameter, the Casson parameter, the couple stress parameter, the thermal radiation parameter, and the volume fraction of the nanoparticles on the velocity and temperature profiles, the skin friction coefficient, and the local Nusselt number are investigated through a comprehensive parametric study. The results show that the fluid velocity decreases as the Casson and couple stress parameters increase, whereas the squeezing parameter increases. The temperature distribution becomes more uniform with higher thermal radiation and nanoparticle volume fraction because of increased radiative and conductive heat transport, and lower squeezing due to the squeezing force. Besides, the convergence analysis proves the stability and accuracy of HAM solutions. The results confirm that the blood-based ternary hybrid nanofluids exhibit excellent thermal characteristics that could be used in biomedical thermal management, microfluidic devices, cooling systems, and advanced heat transfer systems.</p></div>","PeriodicalId":593,"journal":{"name":"International Journal of Mechanics and Materials in Design","volume":"22 3","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantifying the influence of material randomness on strain response of high temperature strain gauges using stochastic finite element method","authors":"Fengling Zhang,&nbsp;Renjie Li,&nbsp;Yazhi Zhao,&nbsp;Jing Tian,&nbsp;Chunyu Qu","doi":"10.1007/s10999-026-09983-5","DOIUrl":"10.1007/s10999-026-09983-5","url":null,"abstract":"<div><p>Material properties in multi-layer high temperature strain gauge structures exhibit inherent three-dimensional randomness, leading to variability in strain response even under identical conditions. This paper quantifies the influence of this uncertainty on the strain response of each layer using the stochastic finite element method. Three-dimensional random fields of elastic modulus (<i>E</i>), Poisson’s ratio (<i>ν</i>), and thermal expansion coefficient (<i>α</i>) are discretized via the local average method, and Monte Carlo simulation is employed to obtain response statistics. A hybrid finite element model combining solid elements for bonding layers and beam elements for the sensitive grid is established, with virtual connection elements handling the interface. Static tensile tests with digital image correlation (DIC) are conducted for validation. Results reveal a clear attenuation law: uncertainty decreases as it propagates from the specimen to the sensitive grid (<i>cov</i>(s₁)&gt;<i>cov</i>(s₂)&gt;<i>cov</i>(s₃)&gt;<i>cov</i>(s₄)). The uncertainty of the specimen’s material parameters dominates the grid’s strain response, while the grid’s own parameter uncertainty is negligible. Under high temperature conditions (1000 °C), α uncertainty has an order-of-magnitude greater influence than <i>E</i> and <i>ν</i>. DIC results confirm the uncertainty propagation trend and the decrease in mean strain with increasing bonding layer thickness, providing theoretical guidance for installation process optimization and measurement reliability improvement.</p></div>","PeriodicalId":593,"journal":{"name":"International Journal of Mechanics and Materials in Design","volume":"22 3","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148928087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Artificial neural network-based optimization of heat transfer rate in magnetically controlled Bingham-type hybrid nanofluid flow for biomedical applications","authors":"Tosin Oreyeni,&nbsp;Pradeep Kaswan,&nbsp;Emmanuel Omokhuale,&nbsp;Maddina Dinesh Kumar,&nbsp;Nehad Ali Shah,&nbsp;S. U. Mamatha,&nbsp;Amos Oladele Popoola","doi":"10.1007/s10999-026-09984-4","DOIUrl":"10.1007/s10999-026-09984-4","url":null,"abstract":"<div><p>The increase in metabolic disorders and organ-related dysfunctions has highlighted the necessity for more advanced approaches to deal with the build-up of waste substances in blood plasma. In response to this challenge, the study examines magnetohydrodynamic (MHD) biviscous Bingham hybrid nanofluid comprising Single-Walled and Multi-Walled Carbon Nanotubes (SWCNTs-MWCNTs) dispersed in blood plasma flowing over an exponentially stretching surface, leveraging the exceptional physical and chemical properties of these nanomaterials widely recognized in nanomedicine. The analysis further investigates the effects of quadratic thermal radiation, Diffusion-thermal, Thermo-diffusion, and waste discharge concentration on flow behaviour. By using similarity transformations the governing partial differential equations are transformed into a set of nonlinear ordinary differential equations (ODEs). The resulting equations are then solved using the Chebyshev Spectral Collocation Method (CSCM) to achieve accurate numerical results. Additionally, an artificial neural network (ANN) model through Bayesian algorithm is created to confirm and predict solution trends improving computational efficiency and generalisation. The findings indicate that the inclusion of both SWCNTs and MWCNTs notably enhances heat transfer rates, whereas waste discharge and nonlinear radiative effects lead to noticeable alterations in velocity and concentration profiles. This study represents a significant progression in the modelling of hybrid nanofluids in bio-convective systems with practical applications in biomedical field.</p></div>","PeriodicalId":593,"journal":{"name":"International Journal of Mechanics and Materials in Design","volume":"22 3","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geometrically nonlinear coupled thermo-elasticity to thermal-induced vibrations of FGM cylindrical panels","authors":"Mohammad Faraji Oskouie,&nbsp;Ali Talebian,&nbsp;Reza Ansari","doi":"10.1007/s10999-026-09974-6","DOIUrl":"10.1007/s10999-026-09974-6","url":null,"abstract":"<div><p>This study introduces a nonlinear thermoelastic framework tailored for functionally graded cylindrical panels subjected to transient thermal conduction and undergoing moderately large deflections. The mechanical response is formulated using the first-order shear deformation theory (FSDT) in combination with von Kármán strain–displacement relations, which allows a consistent representation of geometric nonlinearity. The governing equations are established through Hamilton’s principle and subsequently discretized via the variational differential quadrature scheme. For the temporal domain, the Newmark-beta integration algorithm is employed, ensuring numerical stability and reliable convergence throughout the nonlinear analysis. The thermo-mechanical properties of the graded constituents are treated as temperature-dependent and porosity-sensitive, allowing dynamic updates that reflect realistic thermal environments. Validation against benchmark solutions for plates in linear and uncoupled regimes confirms the accuracy of the formulation. Parametric investigations demonstrate that material gradation, porosity, geometric aspect ratios, boundary conditions, thickness variation, and transient heat flux intensity strongly affect the nonlinear thermoelastic response. Results further reveal that geometric nonlinearity alleviates stress oscillations and moderates deflection growth, while the interplay between gradation profile and shell geometry decisively governs the balance between stiffness, thermal resistance, and deformation capacity. Overall, the proposed framework provides a robust and adaptable computational tool for analyzing advanced FGM structures under severe thermal environments, offering direct relevance to high-performance engineering applications.</p></div>","PeriodicalId":593,"journal":{"name":"International Journal of Mechanics and Materials in Design","volume":"22 3","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A hybrid machine learning and genetic algorithm approach for optimizing buckling resistance of lattice-reinforced composite conical shells","authors":"Ali Kahid Baseri,&nbsp;Alireza Shafeie","doi":"10.1007/s10999-026-09985-3","DOIUrl":"10.1007/s10999-026-09985-3","url":null,"abstract":"<div><p>This study presents a computationally efficient framework for optimizing the buckling resistance of composite conical shells reinforced with internal lattice structures. By integrating Finite Element Method (FEM) analysis, a Gradient Boosting Machine (GBM) surrogate model, and a Genetic Algorithm (GA), the design space defined by lattice angle, shell geometry, and material selection was efficiently navigated. A parametric study using ANSYS revealed that lattice angle (φ) and base-to-height ratio (B/H) are critical parameters, with φ exerting the most significant influence. Among the materials tested, Epoxy-Aramid composite demonstrated superior performance. The GBM surrogate, trained on 150 FEM simulations and validated via 5-fold cross-validation, achieved high predictive accuracy (<i>R</i>² = 0.79) with minimal computational cost, drastically reducing the need for time-consuming simulations. The GA converged to an optimal configuration: φ = 13.93°, B/H = 3.36, and Epoxy-Aramid material, yielding a maximum predicted buckling load of 17,196 kN. Comparative analysis showed a 40% improvement in buckling load over a non-optimized baseline, validating the methodology. This hybrid approach offers an efficient tool for designing lightweight composite structures for applications such as fuel tanks, satellite components, and wind turbine blades.</p></div>","PeriodicalId":593,"journal":{"name":"International Journal of Mechanics and Materials in Design","volume":"22 3","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}