Acta Mechanica Sinica最新文献

{"title":"Dynamics of strain-mediated magnetic transverse domain walls in bilayer heterostructure under transverse magnetic field","authors":"Sumit Maity,&nbsp;Sharad Dwivedi","doi":"10.1007/s10409-025-24786-x","DOIUrl":"10.1007/s10409-025-24786-x","url":null,"abstract":"<div><p>This paper presents a theoretical investigation into the dynamics of a transverse domain wall within a bilayer multiferroic heterostructure composed of a thick piezoelectric actuator and a thin magnetostrictive layer of hexagonal crystal symmetry. The study is based on the Landau-Lifshitz-Gilbert equation, accounting for the interplay of axial and transverse magnetic fields, spin-polarized electric currents, magnetoelastic effects, crystal symmetry, and piezo-induced strains. Explicit analytical expressions for key parameters, including polar angle, domain wall width, velocity, and displacement, are derived using a trial function inspired by the Schryer and Walker approach and employing the small-angle approximation. The results reveal that transverse magnetic fields, crystal symmetry, and piezo-induced strain are instrumental in modulating domain wall dynamics in the steady-state propagation regime. To be precise, the domain wall width directly depends on the transverse magnetic field strength, while the velocity is significantly enhanced under field-driven conditions, though it remains largely unaffected in current-driven motion. We emphasize that our findings align qualitatively well with recent theoretical and experimental observations, offering insights into tuning the dynamics of magnetic domain walls in multiferroic heterostructures.</p></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 6","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of key initial parameters on reshocked Richtmyer-Meshkov instability","authors":"Jun Wang \u0000 (,&nbsp;),&nbsp;Yongrui Deng \u0000 (,&nbsp;),&nbsp;Yong Zhao \u0000 (,&nbsp;),&nbsp;Juchun Ding \u0000 (,&nbsp;),&nbsp;Xisheng Luo \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-24967-x","DOIUrl":"10.1007/s10409-025-24967-x","url":null,"abstract":"<div><p>This paper presents an experimental and theoretical study on Richtmyer-Meshkov instability at a light/heavy single-mode gaseous interface under reflected shock wave (reshock) conditions. Particular emphasis is placed on the influence of initial conditions (including shock strength, interface density ratio, and amplitude-to-wavelength ratio) on the perturbation growth following reshock. The results reveal that, for all cases, the interface amplitude exhibits a long-term linear growth with time after reshock, followed by a rapid decay in growth rate, highly similar to the perturbation growth behavior after single shock. Higher Mach numbers intensify transverse wave interactions with the interface, significantly affecting the interface morphology. Additionally, the interface is driven closer to the end wall, increasing the frequency of interactions between reverberating waves and the interface. This results in significantly enhanced mixing, as evidenced by the notably larger interface thickness, making the prediction of post-reshock growth rates across varying shock strengths particularly challenging. Interfaces with different density ratios demonstrate similar growth patterns, with the normalized perturbation growth showing near independence from the density ratio. As the amplitude-to-wavelength ratio increases, distinct transverse shock waves are generated after reshock, which produce high-pressure regions near the interface, causing the bubble head to present a cavity structure. For all cases, the early-stage post-reshock perturbation growth, when appropriately normalized, collapses well at the early stage but diverges at the late stage, especially for cases with varying Mach numbers. The linear superposition model, incorporating a reduction factor, effectively predicts the post-reshock growth rate for cases with different density ratios and initial amplitudes but loses precision for cases with varying shock strengths. Among existing models, the Sadot model (Sadot et al. 1998) offers the most reliable predictions for late-stage post-reshock perturbation growth.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 4","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144914844","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":"Lateral turbulent jet in rarefied environment","authors":"Songyan Tian \u0000 (,&nbsp;),&nbsp;Lei Wu \u0000 (,&nbsp;),&nbsp;Minping Wan \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-25040-x","DOIUrl":"10.1007/s10409-025-25040-x","url":null,"abstract":"<div><p>Lateral jets play a crucial role in controlling the trajectory and aerodynamic heating of hypersonic vehicles. However, the complex interaction between turbulent and rarefaction effects has rarely been examined. This study fills this knowledge gap by employing the newly developed GSIS-SST method (Tian and Wu (2025)), which combines the shear stress transport (SST) model for turbulent flow and the general synthetic iterative scheme (GSIS) for rarefied gas flow. It is found that, at altitudes from 50 to 80 km, the maximum relative difference in the pitch moment between the GSIS-SST and pure GSIS (SST) reaches 28% (20%). While the jet is supposed to reduce the surface heat flux, its turbulence significantly diminishes this reduction, e.g., the GSIS-SST predicts a heat flux about one order of magnitude higher than the GSIS when the jet pressure ratio is 1.5. Increasing the angle of attack intensifies local turbulence, resulting in expanded discrepancies in shear stress and heat flux between GSIS-SST and GSIS. These insights enhance our comprehension of lateral jet flows and highlight the importance of accounting for both turbulent and rarefaction effects in medium-altitude hypersonic flight.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 2","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073939","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":"Bifurcation analysis of a railway wheelset system with random excitation and displacement delay feedback","authors":"Pan Lan \u0000 (,&nbsp;),&nbsp;Zhouchao Wei \u0000 (,&nbsp;),&nbsp;Tomasz Kapitaniak,&nbsp;Wei Zhang \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-24778-x","DOIUrl":"10.1007/s10409-025-24778-x","url":null,"abstract":"<div><p>This paper investigates the dynamics of a railway wheelset system subjected to random excitation and governed by a displacement delay feedback controller. Initially, the delay component of the wheelset system was estimated utilizing standard form theory and center manifold theory. Subsequently, the differential equation characterizing the stochastic wheelset system was reformulated into a form that incorporates both amplitude and phase, employing the random averaging technique. The local stability of the wheelset system was subsequently assessed using the Lyapunov exponent method, while global stability was evaluated through singular boundary theory. Additionally, the random bifurcation characteristics of the wheelset system were examined using probability density function diagrams. Ultimately, numerical simulations were performed to analyze the influence of velocity and delay on the stochastic dynamics of the wheelset system, and the theoretical results were validated.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 4","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144914842","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":"Inflated circular membrane in contact with finite indentors of different geometries","authors":"Chirag Chiranjib \u0000 (,&nbsp;),&nbsp;Satyajit Sahu \u0000 (,&nbsp;),&nbsp;Soham Roychowdhury \u0000 (,&nbsp;)","doi":"10.1007/s10409-024-24613-x","DOIUrl":"10.1007/s10409-024-24613-x","url":null,"abstract":"<div><p>This paper investigates the contact problem of an air-inflated circular membrane with a finite rigid indentor having three different geometric profiles, namely flat-face, conical, and spherical. Initially, the axisymmetric inflation problem of a thin circular membrane is studied under uniform pressurization. The material is assumed to be homogeneous, isotropic, and incompressible, which is described by the two-parameter Mooney-Rivlin hyperelastic model. An indentor with finite radius is pressed quasi-statically against the inflated membrane, preserving the axisymmetric nature of deformation. The contact problem is formulated for both frictionless and no-slip contact conditions. A set of coupled nonlinear second order partial differential equations for both contact and non-contact regions are solved using a shooting method coupled with an optimization algorithm. The inflated membrane profiles in contact with different indentor geometries, principal stretch ratios, and Cauchy stress resultants are obtained. The possibility of having multiple contact zones and their interaction on different faces of the indentor is also explored. The force-displacement (stiffness) curves for this finite indentor contact problem show the existence of a critical contact force, which limits the force bearing capacity of the inflated structure. This critical force is found to be higher for larger strain-hardening of the material and higher indentor radius. The junction of contact and non-contact regions for flat-faced and conical indentors is found to be the critical section due to slope discontinuity. However, for the spherical indentor, the pole of the membrane is most prone to rupture due to membrane thinning effect.</p></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 3","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10409-024-24613-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144832244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of inclined configuration of superficial neuromast on hydrodynamic signal perception of the fish lateral line","authors":"Wenhui Wang \u0000 (,&nbsp;),&nbsp;Guo-Qing Chen \u0000 (,&nbsp;),&nbsp;Zengzhi Du \u0000 (,&nbsp;),&nbsp;Yang Yang \u0000 (,&nbsp;),&nbsp;Wei Peng \u0000 (,&nbsp;),&nbsp;Yu Li \u0000 (,&nbsp;),&nbsp;Weien Zhou \u0000 (,&nbsp;),&nbsp;Hongyuan Li \u0000 (,&nbsp;),&nbsp;Huiling Duan \u0000 (,&nbsp;),&nbsp;Wen Yao \u0000 (,&nbsp;),&nbsp;Pengyu Lv \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-24848-x","DOIUrl":"10.1007/s10409-025-24848-x","url":null,"abstract":"<div><p>The fish lateral line plays a crucial role in sensing surrounding hydrodynamic signals, which assist fish in foraging and evading predators. Superficial neuromasts (SNs) in the lateral line are important sensory units, most of which are inclined and exhibit a broad range of structural sizes. However, the SNs studied previously are vertical, and the effects of inclined SN configurations on their perception of hydrodynamic signals remain unclear. This paper establishes a fluid-structure interaction model considering oscillation fluid (perturbation or hydrodynamic signal) and inclined SN configuration, and the effects of inclined morphology and structural size on the SN’s flow perception ability are investigated. For the inclined morphology, a larger inclined angle (IA) leads to a smaller hydrodynamic response, thus reducing SN sensitivity but enhancing the ability to suppress flow-induced noise. When the perturbation oscillation frequency is 0.01 Hz, and the IA is 30°, the sensing ability (<i>Γ</i>) is approximately 300 times higher than that of the vertical configuration. Thus, although the inclined morphology of the SN reduces its perception sensitivity, in certain cases, it can improve the <i>Γ</i> by suppressing the interference of flow-induced noise. For the structural size, the effects of SN diameter (<i>D</i>), kinocilium height (<i>h</i>_k), and cupula height (<i>h</i>_c) on perception sensitivity are analyzed. As <i>D</i> increases, the SN perception sensitivity undergoes two distinct stages. When <i>D</i> is less than 45 µm, the cut-off frequency of perception sensitivity increases as <i>D</i> increases. When <i>D</i> exceeds 45 µm, the sensitivity reaches a peak due to structural resonance induced by fluid forces. As <i>D</i> increases further, the peak sensitivity becomes larger, and the resonance peak shifts to the left. Additionally, increasing the <i>h</i>_k and <i>h</i>_c reduces the cut-off frequency while enhancing the perception of low-frequency hydrodynamic signals. These findings contribute to a deeper understanding of the flow perception mechanism in SNs.</p></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 5","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909663","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":"Dynamics modeling and simulating of the underwater launch system under the impact load","authors":"Shutian Li \u0000 (,&nbsp;),&nbsp;Bin He \u0000 (,&nbsp;),&nbsp;Guoping Wang \u0000 (,&nbsp;),&nbsp;Tang Li \u0000 (,&nbsp;),&nbsp;Zhihuan Zhan \u0000 (,&nbsp;),&nbsp;Xiaoting Rui \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-24653-x","DOIUrl":"10.1007/s10409-025-24653-x","url":null,"abstract":"<div><p>Underwater launch is a transient vibration process under the impact load. The hydrodynamic calculation is an important part of equipment research. In this paper, firstly, combining the theory of the Euler-Bernoulli beam and the potential flow, the transfer equation of the Euler-Bernoulli beam considering the hydroelastic effect is derived, which expands the application scope of the transfer matrix. The correctness of the transfer matrix for the beam with hydroelastic behaviors is verified by comparison with the results of the finite element analysis. Then the dynamics model of the underwater launch system is established based on the multibody system transfer matrix method, and the beam with hydroelastic behaviors is employed as the external vehicle. Subsequently, the overall transfer and dynamic equation are derived, resulting in the solution of the wet natural frequency and the dynamic response under the impact load. The comparison with experimental data validates the dynamics model and simulation results and ensures its reliability in practical applications. The dynamic of the system demonstrates that the launching interval and adjacent tube effect will exert an influence on the subsequent emission. This research provides a fast and efficient method for the dynamic calculation of the underwater launch system.</p></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 8","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145526","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":"Irreversibility analysis and multiple cubic regression based efficiency evaluation of ternary nanofluids (TiO2+SiO2+Al2O3/H2O and TiO2+SiO2+Cu/H2O) via converging/diverging channels","authors":"Siddhant Taneja,&nbsp;Sapna Sharma,&nbsp;Bhuvaneshvar Kumar","doi":"10.1007/s10409-025-24962-x","DOIUrl":"10.1007/s10409-025-24962-x","url":null,"abstract":"<div><p>This study numerically examines the heat and mass transfer characteristics of two ternary nanofluids via converging and diverging channels. Furthermore, the study aims to assess two ternary nanofluids combinations to determine which configuration can provide better heat and mass transfer and lower entropy production, while ensuring cost efficiency. This work bridges the gap between academic research and industrial feasibility by incorporating cost analysis, entropy generation, and thermal efficiency. To compare the velocity, temperature, and concentration profiles, we examine two ternary nanofluids, i.e., TiO₂+SiO₂+Al₂O₃/H₂O and TiO₂+SiO₂+Cu/H₂O, while considering the shape of nanoparticles. The velocity slip and Soret/ Dufour effects are taken into consideration. Furthermore, regression analysis for Nusselt and Sherwood numbers of the model is carried out. The Runge-Kutta fourth-order method with shooting technique is employed to acquire the numerical solution of the governed system of ordinary differential equations. The flow pattern attributes of ternary nanofluids are meticulously examined and simulated with the fluctuation of flow-dominating parameters. Additionally, the influence of these parameters is demonstrated in the flow, temperature, and concentration fields. For variation in Eckert and Dufour numbers, TiO₂+SiO₂+Al₂O₃/H₂O has a higher temperature than TiO₂+SiO₂+Cu/H₂O. The results obtained indicate that the ternary nanofluid TiO₂+SiO₂+Al₂O₃/H₂O has a higher heat transfer rate, lesser entropy generation, greater mass transfer rate, and lower cost than that of TiO₂+SiO₂+Cu/H₂O ternary nanofluid.</p></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"41 6","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170722","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 radial seismic metamaterial filled with auxetic foam for filtering low-frequency Lamb waves and surface waves","authors":"Pengfei Li \u0000 (,&nbsp;),&nbsp;Fan Yang \u0000 (,&nbsp;),&nbsp;Xuanxuan Hou \u0000 (,&nbsp;),&nbsp;Lingbo Li \u0000 (,&nbsp;),&nbsp;Jiacheng Wu \u0000 (,&nbsp;),&nbsp;Hualin Fan \u0000 (,&nbsp;)","doi":"10.1007/s10409-025-24731-x","DOIUrl":"10.1007/s10409-025-24731-x","url":null,"abstract":"<div><p>This study presents a novel radial seismic metamaterial (RSM) based on auxetic foam, which can achieve omnidirectional ultra-low-frequency suppression of Lamb waves in the range of 0.97 to 21.04 Hz and effectively shield omnidirectional surface waves within 10 Hz. Firstly, the Finite Element method is utilized to investigate the bandgap (BG) characteristics and vibration modes, which shows that the BG can be significantly widened by utilizing the local resonance of the auxetic foam. Subsequently, a three-dimensional radial periodic structure is constructed and the displacement fields of Lamb waves are analyzed in the frequency and time domains. The simulation results demonstrate that the proposed RSM can effectively attenuate Lamb waves. Parametric analysis indicates that filling auxetic foam with a high elastic modulus, low Poisson’s ratio, and low mass density can further expand the BG. For surface waves, the band structure is first analyzed using the acoustic cone method. Furthermore, a radial periodic structure consisting of the RSM cells is analyzed in the frequency domain, and a significant attenuation is observed within the BG. The attenuation capability of the designed RSM is further tested against real seismic wave signals, and a satisfactory shielding effect for low-frequency signals is achieved within 10 Hz. The designed RSM provides new insights into the development of SMs, exhibiting the superior application potential of auxetic foam for seismic wave shielding.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 2","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169627","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":"Mechanical behaviors of actin-microtubule composite network: a coarse-grained Langevin dynamics study","authors":"Zhongwei Wang \u0000 (,&nbsp;),&nbsp;Liren Yuan \u0000 (,&nbsp;),&nbsp;Wei Xu \u0000 (,&nbsp;),&nbsp;Bo Gong \u0000 (,&nbsp;),&nbsp;Jin Qian \u0000 (,&nbsp;)","doi":"10.1007/s10409-024-24674-x","DOIUrl":"10.1007/s10409-024-24674-x","url":null,"abstract":"<div><p>Although significant advancements have been made in understanding the physics of cytoskeletal substructures, the research on structural interactions and cross-talk between actin filaments, microtubules, and intermediate filaments is still in its infancy. Here, we report a coarse-grained hierarchical computational model based on the Langevin dynamics method to investigate the mechanical response of the composite actin-microtubule networks. It was found that strain stiffening occurred in all three types of networks: actin network, microtubule network, and actin-microtubule composite network with increasing shear deformation. We also found that the mechanical response of the actin-microtubule composite network is not a linear superposition of the actin and microtubule networks, but is synergistically regulated by spatial interactions to make the composite network exhibit rich mechanical properties. Load distribution within the actin-microtubule composite network was found to be controlled by the stiffness of the cross-linkers. We also examined the nonaffine deformation degree of the actin-microtubule composite network and its components. This work will contribute fresh sights for the advancement of biomimetic materials.</p></div>","PeriodicalId":7109,"journal":{"name":"Acta Mechanica Sinica","volume":"42 4","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170645","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}