Nilesh S. Gaikwad, Dhiraj D. Deshmukh, Sachin P. Kakade
{"title":"Fiber-reinforced polymer matrix composites for improved defence armor - A comprehensive review","authors":"Nilesh S. Gaikwad, Dhiraj D. Deshmukh, Sachin P. Kakade","doi":"10.1016/j.smmf.2025.100084","DOIUrl":"10.1016/j.smmf.2025.100084","url":null,"abstract":"<div><div>Fiber-reinforced polymer (FRP) matrix composites are prominent defensive armor materials owing to their excellent strength-to-weight ratio and design flexibility. High-strength fibers such as aramid, carbon, or glass embedded in a polymer matrix exhibit excellent impact resistance and energy absorption, which significantly improves ballistic protection. Research by the Defense Research and Development Organisation (DRDO) on FRP's and stealth technologies has helped the Indian military create and use high-performance materials. FRP's are often utilized in the motor and construction sectors, but they may be expanded to a high degree of skeletal uses, such as bullet-resistant and robust devices. The ballistic impact mechanism is directly correlated to the material, fabrication process, strengthening mechanism, thickness, applied projectile parameters, and density. The proposed in-depth review examines the production processes and use of novel ballistic protection materials in bulletproof vests and body armor in the military. It also offers some suggestions for materials that would be good choices for future, all-encompassing body armor.</div></div>","PeriodicalId":101164,"journal":{"name":"Smart Materials in Manufacturing","volume":"3 ","pages":"Article 100084"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Enqing Wang , Jinpeng Tuo , Fengqi Hou , Dongjie Li , Yuanhang Li , Lvhao Zheng , Kai Zhang , Longlong Dong , Yi Yang , Hao Wang , Aijun Huang , Lai-Chang Zhang
{"title":"Gradient microstructures and mechanical properties of Ti–6Al–4V alloy induced by laser surface quenching","authors":"Enqing Wang , Jinpeng Tuo , Fengqi Hou , Dongjie Li , Yuanhang Li , Lvhao Zheng , Kai Zhang , Longlong Dong , Yi Yang , Hao Wang , Aijun Huang , Lai-Chang Zhang","doi":"10.1016/j.smmf.2024.100056","DOIUrl":"https://doi.org/10.1016/j.smmf.2024.100056","url":null,"abstract":"<div><p>Laser surface quenching (LSQ) was employed to fabricate gradient microstructures in a Ti–6Al–4V alloy. The influence of the LSQ parameters on the surface morphology, the depth of the LSQ layer, gradient microstructure, and microhardness were investigated. The results showed that as the laser energy density increases, the surface roughness and thickness of the heat-affected zone (HAZ) increase. From the internal matrix to the surface, the microstructure in the HAZ changes from the equiaxed structure to the mixt structure, martensitic structure, Widmanstätten structure, and then the oxide layer. The size of the β grains gradually decreases as the distance from the surface increases. The different microstructures and elemental distributions in the HAZ result in different microhardness values, which gradually decrease from the surface to the matrix. The laser energy density of 8.0 J/mm<sup>2</sup> is recommended to obtain a HAZ with a thickness of 1200 μm and a peak microhardness of 393 ± 7.3 H V without surface remelting. The LSQ process may help to increase the longevity of Ti–6Al–4V alloy implants by hardening the surface.</p></div>","PeriodicalId":101164,"journal":{"name":"Smart Materials in Manufacturing","volume":"2 ","pages":"Article 100056"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772810224000138/pdfft?md5=b5d5c7c903e5da08d8da28047c59d13d&pid=1-s2.0-S2772810224000138-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141486257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Prem Ananth , Naidu Dhanpal Jayram , Kandasamy Muthusamy
{"title":"Novel approach to the 3D printing of biphasic calcium phosphate/molybdenum disulfide composite reinforced with polyamide12","authors":"K. Prem Ananth , Naidu Dhanpal Jayram , Kandasamy Muthusamy","doi":"10.1016/j.smmf.2023.100037","DOIUrl":"https://doi.org/10.1016/j.smmf.2023.100037","url":null,"abstract":"<div><p>In practical terms, the successful treatment of critical-sized bone defects remains a formidable obstacle. Among various options for bone regeneration, a customized 3D composite scaffold is widely acknowledged as the optimal choice. In the present study, we have developed a specialized composite scaffold utilizing biphasic calcium phosphate/molybdenum disulfide (BCp/MoS<sub>2</sub>) reinforced with polyamide12 (PA12) through the selective laser sintering (SLS) technique, employing different laser powers: 16W, 18W, 20W, and 22W. Notably, the BCp/MoS<sub>2</sub>/PA12 scaffold described in this research has not been explored in previous investigations. Analysis using a 3D profilometer reveals that the surface properties of the scaffold exhibit a robust mechanical interconnection between the 3-wt percent (Wt%) BCp/MoS<sub>2</sub> composite within the PA12 matrix, particularly at a laser power of 22W. Remarkably, the mechanical properties of BCp/MoS<sub>2</sub>/PA12, including tensile strength (47.64 ± 0.42 MPa) and Young's modulus (2.31 ± 0.15 MPa), surpass those of pure PA12. These enhanced mechanical characteristics hold promising implications for the future advancement of bone tissue engineering. To comprehensively evaluate the composite scaffolds, we thoroughly investigated their thermal behavior and conducted morphological analysis. Moreover, after 21 days, in vitro live/dead results exhibited living cells along with their distinctive filopodia morphology, providing compelling evidence of the composite's non-toxicity. Further cell adhesion results showed enhanced growth, multiplication, and more reliable attachment and spreading across the composite surface. Encouragingly, the observed biological activity of the BCp/MoS<sub>2</sub>/PA12 scaffold with a 3 wt% concentration at a laser power of 22W suggests its significant potential for application in implant-related scenarios.</p></div>","PeriodicalId":101164,"journal":{"name":"Smart Materials in Manufacturing","volume":"2 ","pages":"Article 100037"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50200053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Corrosion resistance of in situ steam LDH coating on AZ31 and AM30 Alloys: Influence of NaOH and Al–Mn phase","authors":"Yan-Jie Zhao, Fen Zhang, Lan-Yue Cui, Shuo-Qi Li, Cheng-Bao Liu, Rong-Chang Zeng","doi":"10.1016/j.smmf.2024.100045","DOIUrl":"https://doi.org/10.1016/j.smmf.2024.100045","url":null,"abstract":"<div><p>In situ formation mechanism of steam Mg–Al layered double hydroxide (Mg–Al–CO<sub>3</sub>-LDH) coatings on AZ31 and AM30 alloys was compared in presence of NaOH aqueous solution. The microstructure and elemental composition of the obtained coatings were analyzed using SEM, EDS, XRD and FTIR. The corrosion resistance of the coated samples was evaluated using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and salt spray test. The results indicated that the addition of NaOH significantly influenced the morphology as well as the thickness of the prepared LDH coating. The effect of different Al–Mn phase contents of AZ31 and AM30 alloy on the growth mechanism of the LDH coatings was discussed. The addition of 0.01 M NaOH promoted the growth of the LDH coating on AZ31 and AM30 alloys. The AM30-NaOH-0.01 sample possessed the most compact and uniform surfaces as well as the maximum thickness. The corrosion current density of the samples was reduced by three orders of magnitude compared to their substrates. It was revealed that the addition of a moderate amount of NaOH in the steam would raise the pH level, which would benefit the dissolution of the aluminum phase and promote the growth of LDH coating.</p></div>","PeriodicalId":101164,"journal":{"name":"Smart Materials in Manufacturing","volume":"2 ","pages":"Article 100045"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772810224000023/pdfft?md5=cf431b9eb02842687c2b33c83bdb7e22&pid=1-s2.0-S2772810224000023-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139434338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammad Waqas , Asif Israr , Muhammad Ejaz Qureshi , Muhammad Muzamil , Arfan Majeed
{"title":"Experimental and statistical investigation of laser welding with different joint gap widths for HSLA steel","authors":"Muhammad Waqas , Asif Israr , Muhammad Ejaz Qureshi , Muhammad Muzamil , Arfan Majeed","doi":"10.1016/j.smmf.2024.100057","DOIUrl":"10.1016/j.smmf.2024.100057","url":null,"abstract":"<div><p>Automated Ytterbium (Yb) single pass fiber laser beam welding of High Strength Low Alloy (HSLA) steel is an expensive process, so it's a need for machining process for butt joint preparation (CNC Milling and Grinding Machining) to make it less expensive to get the same material strength after constant varying joint gap. This study aims to optimize input parameters (fixed (Power and Speed), variable (Butt Joint Gap, and Focal Length)) with respect to output parameters (Distortion, Ultimate Tensile Strength (UTS), Residual Stresses (RS)) for a 4.5 mm thick 30CrMnSiA steel. Experiments and statistical modelling (using Design of Experiment) has been performed on 0–0.5 mm butt joint gap with 0.1 mm incremental size and without filler wire. The results showed that less percentage error in distortion, UTS and RS, which are 8.19 %, 2.38 % and 6.08 % respectively. In addition, 0.2–0.4 mm joint gaps show better tensile properties and almost equal to 95 % of base material (BM), by failure appearing on the BM (aside weld) due to annealed material condition. Micro-hardness measured at the fusion zone (max. 617 HV) was almost 3 times that of the base metal (max. 208 HV). Metallography study shows that fusion zone is consisted of martensite structure due to high cooling rate during laser beam welding process, so it has more strength as compared to other two zones (Heat affected zone (HAZ) and base material). Moreover, fractured tensile sample fractography study shows the ductile behavior of failure due to presence of dimples and voids.</p></div>","PeriodicalId":101164,"journal":{"name":"Smart Materials in Manufacturing","volume":"2 ","pages":"Article 100057"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277281022400014X/pdfft?md5=fa0d609846f12d94c8412a5f6dc7d75d&pid=1-s2.0-S277281022400014X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142136482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Defect engineering in nanomaterials: Impact, challenges, and applications","authors":"Raghvendra Kumar Mishra , Kartikey Verma , Deepa sethi singh","doi":"10.1016/j.smmf.2024.100052","DOIUrl":"https://doi.org/10.1016/j.smmf.2024.100052","url":null,"abstract":"<div><p>Defects in nanomaterials have emerged as a pivotal aspect influencing their properties and diverse applications across numerous industries. This comprehensive review explores the intricate relationship between defects, primarily in carbon nanotubes and graphene, and their implications across a spectrum of applications. Beginning with an introduction delving into the significance and types of defects, the review elucidates their multifaceted impact on the mechanical, electrical, and environmental characteristics of these nanomaterials. It presents detailed analyses of studies exploring defects in carbon nanotubes and graphene, shedding light on their effects on mechanical and electrical properties, alongside characterizing methods. The paper meticulously examines the extensive array of applications involving carbon nanotubes and graphene, encompassing electronics, biomedical advancements, and considerations for environmental sustainability. Furthermore, it systematically incorporates studies highlighting the implications of defects on these applications. This review precisely examines defect engineering in nanomaterials across various industries, emphasizing the nuanced role of defects in tailoring properties for specific applications. It concludes by summarizing the integral role defects play in shaping the future of nanomaterial applications in diverse industries.</p></div>","PeriodicalId":101164,"journal":{"name":"Smart Materials in Manufacturing","volume":"2 ","pages":"Article 100052"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772810224000096/pdfft?md5=a4ffbc24d69265528fdd94be3aa2008d&pid=1-s2.0-S2772810224000096-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141243489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mingyi Wu , Liang Wu , Ruijun Wang , An Wang , Xiaowei Dai , Wenhui Yao , Yuan Yuan , Atrens Andrej , Jingfeng Wang , Fusheng Pan
{"title":"Preparation and corrosion behavior of layered double hydroxides-graphene oxide composite coatings modified by sodium dodecylbenzene sulfonate on the surface of AZ31 Mg alloy","authors":"Mingyi Wu , Liang Wu , Ruijun Wang , An Wang , Xiaowei Dai , Wenhui Yao , Yuan Yuan , Atrens Andrej , Jingfeng Wang , Fusheng Pan","doi":"10.1016/j.smmf.2024.100054","DOIUrl":"10.1016/j.smmf.2024.100054","url":null,"abstract":"<div><p>Layered double hydroxides (LDHs) are a class of two-dimensional anionic clays with adjustable structure, which have certain corrosion resistance. However, smooth growth path of LDHs nanosheets perpendicular to the substrate limits its application in the field of corrosion. Graphene oxide (GO) possess a high specific surface area and barrier properties, which provides a promising method for further improving the corrosion resistance of LDHs. In this work, we prepared three different concentrations of sodium dodecylbenzene sulfonate (SDBS) modified GO (GO:SDBS concentration ratio = 1:1, 1:2, 1:3), and present MgAlCe-LDHs@GO-SDBS composite coatings by one-step hydrothermal method with well-zigzag morphology and good corrosion resistance. GO-SDBS was successfully incorporated in the layered double hydroxide (LDHs), the corrosion current density of the MgAlCe-LDHs@GO-S<sub>2</sub> coatings was 1.60 × 10<sup>−8</sup> A cm<sup>−2</sup>, which was lower than other coatings. This one-step growth of MgAlCe-LDHs@GO-S method has potential applications in manufacture of anti-corrosion protection coatings.</p></div>","PeriodicalId":101164,"journal":{"name":"Smart Materials in Manufacturing","volume":"2 ","pages":"Article 100054"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772810224000114/pdfft?md5=d6a689b6d47ec75a162e75ff82daadeb&pid=1-s2.0-S2772810224000114-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142021143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seung Ho Lee , Ashjeev Luvnish , Xiao Su , Qingshi Meng , Ming Liu , Hsu-Chiang Kuan , Wasim Saman , Michel Bostrom , Jun Ma
{"title":"Advancements in polymer (Nano)composites for phase change material-based thermal storage: A focus on thermoplastic matrices and ceramic/carbon fillers","authors":"Seung Ho Lee , Ashjeev Luvnish , Xiao Su , Qingshi Meng , Ming Liu , Hsu-Chiang Kuan , Wasim Saman , Michel Bostrom , Jun Ma","doi":"10.1016/j.smmf.2024.100044","DOIUrl":"https://doi.org/10.1016/j.smmf.2024.100044","url":null,"abstract":"<div><p>This article explores (i) the potential of polymer (nano)composites as alternatives to conventional metals in the manufacture of heat exchangers and (ii) the application of Phase Change Materials (PCMs) for thermal energy storage. Bulk polymers, despite their lower thermal conductivity in comparison with metals, have advantages such as lightweight, corrosion resistance and cost-effectiveness. The paper emphasizes methods of enhancing polymers' thermal conductivity, particularly by incorporating fillers such as ceramics and carbon-based fillers into thermoplastics. Techniques such as twin-screw extrusion and injection molding are examined for producing thermally conductive polymer composites. The study also investigates the utilization of organic PCMs, focusing on their thermal enhancement through the addition of various nanoadditives. These developments collectively pave the way for designing innovative thermoplastic heat exchangers for PCM storage. The review culminates in identifying areas requiring further research, particularly in the reliable manufacture of polycarbonate/graphene nanoplatelet composites and the optimization of the thermal performance of polymer heat exchangers through advanced heat transfer designs and simulations. The findings could lead to the realization of low-cost and efficient polymer-based heat exchangers, contributing to the evolution of thermal energy storage systems and the reduction of global warming.</p></div>","PeriodicalId":101164,"journal":{"name":"Smart Materials in Manufacturing","volume":"2 ","pages":"Article 100044"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772810224000011/pdfft?md5=4a56c628631f8efc1097cf2490564b78&pid=1-s2.0-S2772810224000011-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139487807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The inhibition effect of etidronate on degradation behavior of Mg–Zn–Y-Nd-Zr alloy","authors":"Di Mei, Yaqian Li, Xiaoshuang Ma, Liguo Wang, Shijie Zhu, Shaokang Guan","doi":"10.1016/j.smmf.2023.100020","DOIUrl":"10.1016/j.smmf.2023.100020","url":null,"abstract":"<div><p>The control of corrosion behavior of Mg alloys for biomedical applications is a research hotspot in the field of biodegradable metallic implant materials. In recent years, the employment of corrosion inhibitors for regulating the corrosion behavior of Mg alloys has attracted attention. In this work, a promising corrosion inhibitor for Mg alloys, Etidronate (ETN), was selected from the drugs for the treatment of osteoporosis, and its effect on the corrosion behavior of Mg–Zn–Y-Nd-Zr (ZE21C Mg alloy) in simulated body fluids was systematically studied. The results show that ETN not only reduces the corrosion rate of the alloy, but also significantly weakens its tendency of localized corrosion, which is beneficial for improving the service reliability of Mg alloy for orthopedic application. This study provides an idea for corrosion control of biodegradable Mg alloys and is of great significance for promoting their development and applications.</p></div>","PeriodicalId":101164,"journal":{"name":"Smart Materials in Manufacturing","volume":"2 ","pages":"Article 100020"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772810223000077/pdfft?md5=f5aa261f2bd0e59f2880f8881e56f4b1&pid=1-s2.0-S2772810223000077-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74950067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Anelastic deformation of magnesium and its alloys – A review","authors":"Hua Qian Ang","doi":"10.1016/j.smmf.2024.100051","DOIUrl":"https://doi.org/10.1016/j.smmf.2024.100051","url":null,"abstract":"<div><p>The deformation of Mg is made up of elastic, anelastic and plastic components. Unlike the elasticity and plasticity which have been widely studied, the anelasticity has been routinely ignored in many published works when characterising the behaviour of Mg and its alloys, due mainly to the difficulty in measuring the small region of anelasticity during deformation. This paper reviews the anelastic deformation of Mg and Mg alloys, covering its potential causes, affecting factors, and its implications on several material properties. The evidence from the literature suggests two possible mechanisms which may be responsible for the anelastic deformation: reversible {10 <span><math><mrow><mover><mn>1</mn><mo>‾</mo></mover></mrow></math></span> 2} twinning and reversible incipient kink bands in the form of basal dislocation loops. Several factors, such as grain size, loading direction, solute concentration, precipitation, strain rate and temperature, are also observed to influence the magnitude of anelasticity. A direct consequence of anelastic deformation is the variation of elastic modulus values. This can lead to ambiguities and errors in determining stiffness, yield strength and fatigue behaviour if a constant nominal elastic modulus is used in engineering analyses. This review paper has shown that the anelastic deformation of Mg remains under-reported and suggested some possible directions for future research.</p></div>","PeriodicalId":101164,"journal":{"name":"Smart Materials in Manufacturing","volume":"2 ","pages":"Article 100051"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772810224000084/pdfft?md5=7089e19d9236995c08b5d66d0126a332&pid=1-s2.0-S2772810224000084-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140548042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}