Composites Communications最新文献

{"title":"Machine learning-driven optimization and compositional experimental validation of polythiophene/graphene nanoplatelet nanocomposite for symmetric supercapacitor","authors":"Mashqoor Alam,&nbsp;Samina Husain","doi":"10.1016/j.coco.2025.102458","DOIUrl":"10.1016/j.coco.2025.102458","url":null,"abstract":"<div><div>This study presents a comprehensive framework that integrates machine learning (ML) models with advanced material characterization techniques to optimize the electrochemical performance of graphene nanoplatelet (GNP) and polythiophene (PTh) nanocomposites for advanced supercapacitor applications. Machine learning approaches, including Artificial Neural Networks (ANN) and Extreme Gradient Boosting (XGBoost), were employed to predict cyclic voltammetry (CV) currents and estimate specific capacitance values. Both models demonstrated exceptional predictive performance, with XGBoost achieving an R² of 0.9964 and a root mean square error (RMSE) of 0.0602 on training data, while ANN attained an R² of 0.9346 and an RMSE of 0.2577. These metrics underscore the reliability of ML models in modelling complex electrochemical behaviors. Among the studied compositions, nanocomposites with 30–40 % GNP in PTh exhibited superior structural and electrochemical properties, as corroborated by material characterization and electrochemical analyses. X-ray Diffraction (XRD) analysis demonstrated increased crystallinity in the 40 % GNP/PTh composite, reducing amorphous content and improving charge transport pathways, while Fourier Transform Infrared (FTIR) spectroscopy highlighted strong π–π stacking and chemical bonding between GNP and PTh, mitigating agglomeration. Cyclic voltammetry showed nearly rectangular CV curves, reflecting excellent double-layer capacitance and redox activity in the 30–40 % GNP/PTh composites. Galvanostatic charge-discharge (GCD) measurements revealed high energy and power densities, along with stable cycling performance for 40 % GNP/PTh. This study uniquely underscores the effectiveness of integrating machine learning predictions with experimental data to optimize nanocomposite design. The findings establish the structural and electrochemical superiority of 30–40 % GNP in PTh, demonstrating its significant potential for high-performance energy storage applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102458"},"PeriodicalIF":6.5,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144239905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of TiO2 nanofillers on the dielectric response of proton conducting sulfonated polyether ether ketone/ionic liquid electrolytes","authors":"Hikmet Okkay ,&nbsp;Ufuk Abaci ,&nbsp;Mesut Yılmazoğlu","doi":"10.1016/j.coco.2025.102466","DOIUrl":"10.1016/j.coco.2025.102466","url":null,"abstract":"<div><div>The impacts of titanium dioxide (TiO₂) filler on the dielectric response of ionic liquid (IL)-doped sulfonated polyether ether ketone (SPEEK) electrolytes have been investigated. Neat SPEEK, IL-doped SPEEK (SPIL), and IL-doped TiO₂-filled SPEEK (SPILTO) composite membranes were prepared with the conventional solution cast method and characterized by various techniques. Fourier-transform infrared (FTIR) spectroscopy analyses confirmed the sulfonation and also showed the dispersion of imidazole and TiO₂. Thermogravimetric analysis (TGA) results showed that all composites are thermally stable to comply with electrochemical requirements up to nearly 150 °C. SPILTO-1 composite exhibited a storage modulus of 74 MPa and a glass transition temperature (T_g) of 140 °C. More than 1 wt% TiO₂ fillers resulted in heterogeneous membrane surfaces for SPILTO samples. The SPILTO-1 electrolyte showed a maximum conductivity (σ) of 8.1 × 10⁻⁴ S/cm and a significant proton transport potential even in completely anhydrous conditions. Charge carrier migration and accumulations resulted in high dielectric constant (ε′) values and major polarization, particularly at lower frequencies. The dielectric permittivity of the SPEEK matrix increased dramatically with the addition of IL and TiO₂ fillers. The substantial ε′ values of SPILTO-1 showed that the combination of IL and TiO₂ increases both the number of free mobile ions and the charge stored in the electrolytes. In the relaxation behaviors, the shortest relaxation time (τ) of 1.34 μs at 300 K corresponded to the highest conductivity of SPILTO-1 electrolyte.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102466"},"PeriodicalIF":6.5,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-objective optimization of sectionalized dome reinforcement for filament-wound composite cases","authors":"Jianhui Fu ,&nbsp;Honghao Liu ,&nbsp;Hui Xu ,&nbsp;Rui Zeng ,&nbsp;Qian Zhang ,&nbsp;Helin Pan ,&nbsp;Lichuan Zhou ,&nbsp;Qiaoguo Wu ,&nbsp;Guiming Zhang ,&nbsp;Lei Zu","doi":"10.1016/j.coco.2025.102472","DOIUrl":"10.1016/j.coco.2025.102472","url":null,"abstract":"<div><div>Composite materials are extensively applied in filament-wound pressure vessels, attributed to their excellent strength-to-weight ratio. However, the dome regions of these vessels experience complex stress distributions, which can induce premature failure under internal pressure. Current dome reinforcement methods generally add unnecessary weight or lack precision, limiting their effectiveness. In this study, a sectionalized reinforcement method was proposed for filament-wound composite domes by integrating a radial basis function (RBF) surrogate model with the NSGA-II optimization algorithm. A refined finite element model was developed to accurately predict failure modes and stress distributions, allowing for multi-objective optimization of key reinforcement parameters (angle, layer count, and coverage range). The optimization results reveal that the proposed method elevated the burst pressure of the composite dome by 36.1 % and improved the performance factor by 18.9 %. Furthermore, the simulation results were validated through hydraulic burst tests, with a simulation-to-experiment error of 3.5 %. To sum up, the proposed method significantly enhanced structural performance while minimizing additional material usage. This study provides an effective, lightweight solution for composite domes and a practical approach to designing advanced composite structures.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102472"},"PeriodicalIF":6.5,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical and ablation performance of stitched/needled coupling fabric reinforced nanoporous phenolic composites","authors":"Hongxiang Cai ,&nbsp;Xiaofei Zhu ,&nbsp;Xuanfeng Zhang ,&nbsp;Liang Li ,&nbsp;Hao Tian ,&nbsp;Zhe Su ,&nbsp;Yi Luo ,&nbsp;Yu Cao ,&nbsp;Bo Niu ,&nbsp;Donghui Long","doi":"10.1016/j.coco.2025.102468","DOIUrl":"10.1016/j.coco.2025.102468","url":null,"abstract":"<div><div>Nanoporous phenolic composites (NPCs) reinforced with needle-punched fabric are considered promising candidates for thermal protection system. Compared to needle-punched technology, introducing stitched yarns is an effective strategy to enhance the interlaminar shear strength. However, the influence of stitched parameter on the macro-mechanical properties, micro-failure mechanism, and ablation performance remains unclear. Herein, stitched/needled coupling fabrics (SFs) with varying stitched parameters (row spacing × stitched spacing) are deliberately designed to reinforce nanoporous phenolic composites (SF/NPCs), and their in-plane mechanical behaviors, interlaminar shear performances, and ablation resistance of SF/NPCs are systematically investigated from micro-macro perspective. The tensile results show that SF/NPC-10 × 5 exhibits the highest tensile strength of 57.4 ± 1.4 MPa. The stitched yarns result in the resin-rich region, while function as a load-bearing structure that hinders crack propagation, thereby improving tensile strength. Meanwhile, tensile properties of SF/NPCs are significantly influenced by the balance between the strengthen effects and damage effects introduced by the stitched process. Additionally, interlaminar shear strength is markedly enhanced (3.3 times) with increasing stitched density, as more stitched yarns contribute to load-bearing structure. Moreover, ablation testing and micro-CT analysis confirm that the stitched yarns improve ablation resistance by reinforcing fiber connectivity in the thickness direction. The present work provides valuable insights for improving the structural reliability and performance of stitched/needled composites in extreme thermal environments.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102468"},"PeriodicalIF":6.5,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic ion-electron dual conduction in mechanically robust hydrogels composites for high-fidelity bioelectronics","authors":"Qian Zhang,&nbsp;Junjun Shang,&nbsp;Haidi Qiao,&nbsp;Junjie Liu,&nbsp;Xia Liu,&nbsp;Qingsheng Yang","doi":"10.1016/j.coco.2025.102470","DOIUrl":"10.1016/j.coco.2025.102470","url":null,"abstract":"<div><div>Conductive hydrogels face a persistent challenge in reconciling high electrical conductivity with mechanical robustness, limiting their utility in advanced bioelectronics. This study introduces a two-step fabrication strategy that decouples ionic-electronic conductive pathway formation from polymer network crosslinking. Initially, a salt-free precursor hydrogel is synthesized by uniformly dispersing PEDOT:PSS within a polyacrylamide (PAAM)/polyacrylic acid (PAA) matrix, leveraging electrostatic interactions to suppress microphase aggregation. Subsequent immersion in a hybrid Ca²⁺/Zr⁴⁺ solution induces dual reinforcement: Ca²⁺ enables reversible electrostatic crosslinking between PAA chains, Zr⁴⁺ establishes high-density coordination bonds with PAA networks. The optimized hydrogel material achieves a record electrical conductivity of 11.70 S/m (exceeding ionic hydrogels: &lt;6 S/m) and mechanical strength of 2.16 MPa, alongside an elastic modulus of 0.76 MPa. Demonstrating practical efficacy, the hydrogel exhibits ultralow skin-contact resistance (6.78 kΩ) as microneedle-array electrodes, enabling high-fidelity electromyographic (EMG) signal acquisition. In addition, a customizable 3D-printed bioelectrochemical sensor further highlights its versatility. This work establishes a universal paradigm for multifunctional hydrogel design, bridging material innovation with next-generation bioelectronic applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102470"},"PeriodicalIF":6.5,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144169209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced thermal and mechanical properties of polyamide-based carbon fiber composites via radial carbon network: Insights from microstructural engineering and interfacial compatibility","authors":"Jiamei Liu ,&nbsp;Xiaohui Yang ,&nbsp;Shuaishuai Zhou ,&nbsp;Peng Zhang ,&nbsp;Tongle Xu ,&nbsp;Peng Ding","doi":"10.1016/j.coco.2025.102463","DOIUrl":"10.1016/j.coco.2025.102463","url":null,"abstract":"<div><div>The synergistic optimization of thermal management and mechanical properties is a central challenge for the application of carbon fiber composites in high power electronics and lightweight structures. In this study, a multiscale synergistic strategy of “radiation freezing-interfacial welding-in situ interlocking” was proposed to successfully prepare three-dimensional (3D) polyamide composites reinforced by radial carbon networks. Through directional freezing to induce the formation of radially oriented interpenetrating networks between carbon fibers and graphene oxide, combined with stepwise thermal reduction to construct carbon-carbon covalent interfaces, and in-situ polymerization to achieve matrix chain segment penetration and interfacial stress transfer reinforcement. At 12 wt% filler loading, the composite achieved a thermal conductivity of 3.41 W m⁻¹ K⁻¹ (1605 % improvement over the matrix), along with compressive strength of 173 MPa, which breaks through the inverted performance limitations of polymer composites. This work provides a new material design paradigm for electronic packaging and aerospace lightweight structures and its cross-scale interface engineering strategy opens up new paths for the development of multifunctional composites.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102463"},"PeriodicalIF":6.5,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aramid resin/carbon fiber composites with integrated performance of flexibility, strength, temperature resistance and flame retardancy","authors":"Ran He,&nbsp;Zhenguo Wang,&nbsp;Yalin Ni,&nbsp;Chang Cui,&nbsp;Zhao-Xia Guo,&nbsp;Baohua Guo,&nbsp;Xinlin Tuo","doi":"10.1016/j.coco.2025.102462","DOIUrl":"10.1016/j.coco.2025.102462","url":null,"abstract":"<div><div>Developing carbon fiber (CF) composites that integrate flexibility, strength and extreme environmental adaptability has emerged as a new challenge, holding strategic significance for advanced high-tech fields. However, conventional polymer resins (e.g. polyurethane) employed in flexible CF composites exhibit inherent performance limitations in meeting the above requirements. Herein, heterocyclic aramid (HA), which has good flexibility and strength, inherent temperature resistance and good flame retardancy, is developed to prepare CF composites with carbon fabrics by solution impregnating and layer-by-layer stacking technique. The interfacial adhesion of the composites was evaluated at three different dimensions (fiber/HA, yarn/HA and fabric/HA) using microbond, yarn pull-out, and T-peeling tests. The flexural strength and modulus measured at three different temperatures (−55 °C, room temperature and 200 °C) show only a slight variation, revealing low and high temperature applicability. Dynamic impact testing showed that the composite with a high HA content has excellent impact toughness. The limiting oxygen index (LOI) is greater than 80 %, showing excellent flame retardancy. The composites are thermally stable up to 450 °C. This work demonstrates that HA as an efficient polymer resin can be successfully combined with CF fabric to prepare CF composites with integrated performance of flexibility, strength, temperature resistance and flame retardancy, showing the potential for applications in extreme environments.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102462"},"PeriodicalIF":6.5,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 controllable salting-out engineering strategy to promote the anisotropic thermal conductivity performances of BNNS@PVA aerogel-based composites by constructing thermal transfer network","authors":"Kaifeng Wang ,&nbsp;Siyu Liu ,&nbsp;Hua Li ,&nbsp;Xinke Liu ,&nbsp;Yingxia Liu ,&nbsp;Hezhou Liu","doi":"10.1016/j.coco.2025.102456","DOIUrl":"10.1016/j.coco.2025.102456","url":null,"abstract":"<div><div>Thermal interface materials (TIMs) with excellent thermal conductivity are urgently required to tackle serious heat accumulation issues within the miniaturized electronic devices in electronic packaging field. Constructing thermal conductive network can enhance the thermal conductivity of polymer-based TIMs, but significantly restricted by the filler content and the orientation, thereby limiting the directional heat transfer behavior. In this work, BNNS@PVA aerogel with anisotropic thermal conductive network is proposed by sequential synthesizing routines, including the construction of PVA aerogel template by directional freeze-drying, surface assembly of BNNS-OH on the skeleton by dip-coating, and the alignment of the interconnected thermal conductive network by salting-out treatment. The relationship between the thermal conductive network microstructure and the thermal conductivity performance of BNNS@PVA is investigated by physiochemical characterizations and finite element simulation. By optimizing the filler content and the salting-out conditions comprehensively, the resulting aerogel with well-aligned microstructure achieves thermal conductivity of 4.63 W m⁻¹ K⁻¹ and anisotropic thermal coefficient of 473. Besides, the heat dissipation, compressive, and dielectric properties of the aerogels are performed. This research provides a promising strategy to enhance thermal conductivity performance by controlling the anisotropic alignment of the thermal conductive networks effectively, presenting great potential in the advanced polymer-based TIMs.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102456"},"PeriodicalIF":6.5,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 study on an asymmetric quasi-zero stiffness metamaterial based on trigonometric function spatially rotated curved beams","authors":"Hongjie Lu ,&nbsp;Lixin Meng ,&nbsp;Wei Wang ,&nbsp;Jinkai Wang ,&nbsp;Yan Wang","doi":"10.1016/j.coco.2025.102464","DOIUrl":"10.1016/j.coco.2025.102464","url":null,"abstract":"<div><div>Vibration isolation under low-frequency and large-amplitude conditions remains a significant challenge in engineering applications. Existing symmetric quasi-zero stiffness(S-QZS) or asymmetric quasi-zero stiffness(A-QZS) isolators often suffer from limited quasi-zero stiffness(QZS) regions and complex structural configurations. To address these issues, this paper proposes a novel metamaterial isolator design with A-QZS characteristics. The core innovation lies in generating a variable cross-section curved beam by rotating a trigonometric function curve about a spatial axis, enabling the structure to exhibit A-QZS behavior under vertical loading. This approach results in a structurally simple and easily manufacturable isolator. Based on comprehensive static and dynamic modeling, the stiffness characteristics and transmissibility performance of the A-QZS isolator are analyzed and compared with those of a conventional S-QZS isolator. Results show that the A-QZS design significantly broadens the QZS region. Under an excitation of 0.2g, the peak transmissibility and onset isolation frequency are reduced by 40.97 % and 42.01 %, respectively, compared to the S-QZS design, with enhanced dynamic stability. Furthermore, the advantages of A-QZS become more pronounced as the excitation amplitude increases.This study not only extends the application of QZS principles in metamaterial structural design but also provides a new design paradigm for achieving high-load, low-frequency, broadband vibration isolation, demonstrating strong potential for use in aerospace, precision instrumentation, and heavy machinery.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102464"},"PeriodicalIF":6.5,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of metamaterial absorbers based on FCIP@C@MoS2 composites via digital light processing for broadband microwave absorption","authors":"Chenyang Li,&nbsp;Quandai Wang,&nbsp;Bingyang Zhu,&nbsp;Linxin Wang,&nbsp;Dajing Gao,&nbsp;Zhenyi Yuan","doi":"10.1016/j.coco.2025.102459","DOIUrl":"10.1016/j.coco.2025.102459","url":null,"abstract":"<div><div>A microwave absorbents of multi-component core-shell structures Flaky carbonyl iron @C@MoS₂ (FCIP@C@MoS₂) was synthesized. The photopolymer slurry containing only 15 wt% absorbents exhibits exceptional microwave absorption performance by effectively leveraging the synergistic effects of magnetic and dielectric properties. Based on the electromagnetic parameters of the prepared absorbing composites, the metamaterial absorbers (MMAs) were designed, and their geometric parameters were optimized using CST simulation software. The cell structure of the MMAs was fabricated through Digital Light Processing (DLP) 3D printing by using the developed photopolymer slurry. The absorber with optimized parameters achieves an effective absorption bandwidth (EAB) of 5.6–18 GHz and demonstrates wide-angle absorption characteristics up to 45° at a thickness of 7.2 mm, with a density of only 1.28 g/cm³. Notably, the low absorbents content not only enhances curing efficiency and printing resolution in DLP processing significantly, but even more, the lightweight design meets practical application requirements.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102459"},"PeriodicalIF":6.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}