Journal of Materials Science最新文献_第5页

Compressive behaviors of bio-inspired helicoidal sandwich structure with variable helicoidal angles 变螺旋角仿生螺旋夹层结构的压缩特性

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-03 DOI: 10.1007/s10853-025-11608-9

Peng Guan, Saiya Gong, Chao Hao

引用次数: 0

Synthesis and evaluation of smart nanoparticles for real-time diagnosis and treatment of surgical site infections 用于手术部位感染实时诊断和治疗的智能纳米颗粒的合成和评价

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-03 DOI: 10.1007/s10853-025-11593-z

Guoyang Zhang, Cheng Li

{"title":"Synthesis and evaluation of smart nanoparticles for real-time diagnosis and treatment of surgical site infections","authors":"Guoyang Zhang, Cheng Li","doi":"10.1007/s10853-025-11593-z","DOIUrl":"10.1007/s10853-025-11593-z","url":null,"abstract":"<div><p>Surgical site infections (SSIs) represent a significant challenge in global healthcare, severely impacting patients' quality of life and imposing substantial economic burdens on medical systems. In the current era of escalating antibiotic resistance, the development of novel and efficacious materials for SSI management has emerged as a critical focus in the realms of materials science and biomedical engineering. This study presents the design and evaluation of multifunctional intelligent nanoparticles that integrate both diagnostic and therapeutic capabilities, using a pH-responsive Rhodamine B fluorescent probe as the signal sensing molecule. Under normal conditions, Rhodamine B is quenched due to the closed spirolactam structure. During bacterial infection, the local acidic environment opens the spirolactam ring, forming a positively charged open-ring structure, and the probe emits a fluorescent signal to warn of bacterial infection. Meanwhile, the vancomycin endows the intelligent nanoparticles with antibacterial functionality. Through a comprehensive series of in vitro assays and in vivo animal experiments, the developed intelligent nanoparticles have demonstrated sensitive responses to bacterial infections, providing timely infection warnings and exhibiting autonomous antibacterial action. MSN@V@R demonstrates strong diagnostic and therapeutic potential for bacterial infections. In the SSI model, the fluorescence intensity at the wound site in bacteria-infected mice treated with MSN@V@R was 6.12 fold higher than that of the control group, indicating effective infection detection. Furthermore, MSN@V@R treatment significantly accelerated wound healing, with the healing rate being 19.33% faster than that observed in the untreated group. This innovative approach overcomes the limitations of traditional medical diagnosis and treatment of surgical site infections, offering a promising strategy for early detection and targeted therapy of SSIs.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 41","pages":"19728 - 19739"},"PeriodicalIF":3.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316160","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}

引用次数: 0

Performance of oxygen-free phosphorous-doped and high-conductivity phosphorous-doped copper in ammonia-containing groundwater 无氧掺磷和高导电性掺磷铜在含氨地下水中的性能

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-03 DOI: 10.1007/s10853-025-11571-5

Andressa Trentin, Konsta Sipilä, Jukka Vaari, Eric A. K. Fangnon, Janne Pakarinen

{"title":"Performance of oxygen-free phosphorous-doped and high-conductivity phosphorous-doped copper in ammonia-containing groundwater","authors":"Andressa Trentin, Konsta Sipilä, Jukka Vaari, Eric A. K. Fangnon, Janne Pakarinen","doi":"10.1007/s10853-025-11571-5","DOIUrl":"10.1007/s10853-025-11571-5","url":null,"abstract":"<div><p>High-purity copper is used for high-level waste (HLW) canister material due to its mechanical strength and corrosion resistance. While oxygen-free phosphorous-doped copper (OFE + P) is the current standard material in Finland and Sweden, high-conductivity phosphorous-doped (HCP) copper has emerged as a potential alternative. This study aimed to evaluate the corrosion performance, stress corrosion cracking (SCC) susceptibility, and hydrogen uptake of HCP relative to OFE + P under ammonia-disturbed groundwater conditions. Both copper grades were subjected to a 3-month exposure in an autoclave containing simulated groundwater and 100 mg/L of ammonia at room temperature. Constant potentials were applied to shift surface potentials into the Cu₂O/CuO stability region, mimicking thermodynamic conditions associated with SCC. Hydrogen content was assessed by hot-melt mass spectroscopy and thermal desorption spectroscopy supported by molecular dynamics simulations of hydrogen diffusion. U-bend specimens, constantly polarized at − 50 mV versus saturated calomel electrode, were analysed using plasma-focused ion beam (PFIB) and electron backscatter diffraction (EBSD) to characterize microstructural degradation. Both materials presented very-low corrosion rates (0.2–0.4 µm/year), and no hydrogen uptake was detected. However, PFIB and EBSD results revealed fully oxidized, intergranular cracks penetrating up to 10 µm, along random grain boundaries. These shallow features were attributed to ammonia-induced degradation facilitated by localized strain, even under anoxic conditions and room temperature. HCP copper exhibited comparable corrosion behaviour and susceptibility to ammonia-induced intergranular attack to that of OFE + P copper. These results support the potential use of HCP copper as a viable alternative for HLW canisters in ammonia-containing environments.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 41","pages":"19977 - 19996"},"PeriodicalIF":3.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10853-025-11571-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review: research advances in detachment mechanisms of biological non-smooth surfaces and their biomimetic applications 综述：生物非光滑表面剥离机制及其仿生应用的研究进展

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-03 DOI: 10.1007/s10853-025-11588-w

Nianhuan Huang, Yi Peng, Hang You, Ting Li, Jie Ran, Shandong Zhang, Jinyuan Huang

引用次数: 0

Biowaste-based hierarchical porous carbon/sulfur composite derived from sustainable fabrication technique as cathode material for Li–S batteries 基于生物废弃物的分层多孔碳/硫复合材料可作为锂硫电池正极材料

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-03 DOI: 10.1007/s10853-025-11620-z

Daniel Nframah Ampong, Wang Lin, Vikram Kishore Bharti, Felipe M. de Souza, Frank Ofori Agyemang, Anthony Andrews, Kwadwo Mensah-Darkwa, Yongdan Hou, Ram K. Gupta

{"title":"Biowaste-based hierarchical porous carbon/sulfur composite derived from sustainable fabrication technique as cathode material for Li–S batteries","authors":"Daniel Nframah Ampong, Wang Lin, Vikram Kishore Bharti, Felipe M. de Souza, Frank Ofori Agyemang, Anthony Andrews, Kwadwo Mensah-Darkwa, Yongdan Hou, Ram K. Gupta","doi":"10.1007/s10853-025-11620-z","DOIUrl":"10.1007/s10853-025-11620-z","url":null,"abstract":"<div><p>A potential energy storage device with high energy density, capacity, and low cost is lithium-sulfur batteries (LSBs). However, the commercial implementation is constrained by the discrepancy between the theoretical expectations and actual performance. Herein, a hierarchical porous carbon obtained from shea butter waste is used as a sulfur host for LSB. A straightforward mixing strategy was employed to prepare the carbon–sulfur composite, offering a simpler alternative to the conventional melt-diffusion method and enabling significant reductions in both energy consumption and processing time. The confined sulfur particles in the shea butter waste-derived carbon exhibit enhanced electrochemical performance, suppressing the shuttle effect and volume change during LSB cycling. The porous carbon with 60 wt.% S (SAC@S60) delivers a stable reversible specific discharge capacity of 1340 mAh/g<sub>sulfur</sub> at 0.1C. In addition, the SAC@S60-based cathode cell retained 97% of the initial recorded discharge capacity with an impressive 99.4% Coulombic efficiency, illustrating excellent reversibility after 200 cycles. Furthermore, the practical application of the cell was tested by lighting a flameless candle for more than 10 h, even after cycling. Therefore, this work opens a new opportunity for a simple and sustainable carbon-based sulfur composite cathode fabrication technique for high-performance LSBs.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 41","pages":"19870 - 19882"},"PeriodicalIF":3.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316071","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}

引用次数: 0

Investigation of quench sensitivity of mechanical and corrosion properties in 2050 aluminum alloy 2050铝合金力学和腐蚀性能的淬火敏感性研究

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-03 DOI: 10.1007/s10853-025-11594-y

Dingyao Fu, Chengbo Li, Cai Zhao, Xuejun Zheng, Tie Yi, Shusheng Lin, Puli Cao

{"title":"Investigation of quench sensitivity of mechanical and corrosion properties in 2050 aluminum alloy","authors":"Dingyao Fu, Chengbo Li, Cai Zhao, Xuejun Zheng, Tie Yi, Shusheng Lin, Puli Cao","doi":"10.1007/s10853-025-11594-y","DOIUrl":"10.1007/s10853-025-11594-y","url":null,"abstract":"<div><p>The mechanical and corrosion properties of large Al-Cu-Li alloy components are inextricably related to quench sensitivity. This work employed the immersion end quenching technique and multi-scale characterization methods to investigate the quench sensitivity of mechanical and corrosion properties in a 2050 aluminum alloy. The results indicate that reducing the quench rate from 395 to 4 K/s leads to an 18.8% decline in the alloy’s ultimate tensile strength (UTS) and a 27.9% reduction in its yield strength (YS); intergranular corrosion (IGC) rating improves from 3 to 2, the maximum IGC depth decreases from 245 to 170 μm, and the corrosion current density decreases from 2.66 × 10<sup>−6</sup> to 2.64 × 10<sup>−7</sup> A/cm<sup>2</sup>. Lower quench rates promote the formation of significant amounts of quench induced precipitations in both grains and grain boundaries (GBs). Excessive consumption of Cu atoms in the matrix results in a reduction in the quantity of the aging hardening phase (T<sub>1</sub>) during artificial aging, thereby degrading the mechanical properties. Meanwhile, some larger quench induced precipitations (<i>θ</i>) with more Cu content are precipitated at the recrystallization grain boundaries. These hinder the corrosion path from expanding, which improves the alloy’s corrosion resistance. This study provides theoretical insights into the influence of quench induced precipitations on the properties of Al-Cu-Li alloy and offers valuable guidance for industrial processing.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 41","pages":"20048 - 20065"},"PeriodicalIF":3.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316158","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}

引用次数: 0

Review: Hydrogen adsorption and storage through a spillover mechanism in palladium-integrated metal organic frameworks 综述：钯集成金属有机骨架中氢的吸附和储存通过溢出机制

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-02 DOI: 10.1007/s10853-025-11599-7

Sudeep Mudhulu, Aastha Tiwari, Bhanu Vardhan Reddy Kuncharam, Suresh Gupta

{"title":"Review: Hydrogen adsorption and storage through a spillover mechanism in palladium-integrated metal organic frameworks","authors":"Sudeep Mudhulu, Aastha Tiwari, Bhanu Vardhan Reddy Kuncharam, Suresh Gupta","doi":"10.1007/s10853-025-11599-7","DOIUrl":"10.1007/s10853-025-11599-7","url":null,"abstract":"<div><p>Hydrogen spillover, a mechanism involving the disassociation of molecular hydrogen on a metal catalyst and subsequent diffusion of atomic hydrogen to a support material, provides an effective approach for enhancing hydrogen adsorption and storage at ambient conditions. Among porous materials, metal organic frameworks (MOFs) stand out because of their large surface area, tunable porosity, and structural versatility. This review presents a comprehensive examination of hydrogen storage via the spillover mechanism in palladium integrated MOFs. These adsorbents demonstrate synergistic interactions between metal sites and MOF, contributing to improved hydrogen chemisorption and physisorption through spillover. Particular emphasis is placed on various Pd incorporation techniques, the influence of synthesis methods on spillover efficiency, and the physicochemical factors governing hydrogen uptake. The extent of hydrogen uptake depends strongly on the Pd loading, nanoparticle size, and the nature of the MOF support. Overloading of Pd often results in particle agglomeration, reducing the active surface area and thereby diminishing storage performance. Despite these advancements, challenges remain, particularly in achieving reproducible synthesis, optimizing Pd dispersion, and understanding the kinetics of spillover. The review highlights recent progress and critical challenges in developing Pd@MOF systems for practical hydrogen storage applications.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 42","pages":"20143 - 20159"},"PeriodicalIF":3.9,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145341219","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}

引用次数: 0

On the optimisation of the composition of high-entropy alloys 高熵合金成分的优化研究

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-02 DOI: 10.1007/s10853-025-11559-1

Juan M. Montes, Fátima Ternero

{"title":"On the optimisation of the composition of high-entropy alloys","authors":"Juan M. Montes, Fátima Ternero","doi":"10.1007/s10853-025-11559-1","DOIUrl":"10.1007/s10853-025-11559-1","url":null,"abstract":"<div><p>The aim of this work is to find a simple and fast way to fix the composition of a multi-component alloy that maximises the probability that it will have a solid-solution single-phase microstructure. The search begins with a detailed analysis of the well-known parameter Ω, which has already been the subject of studies aimed at maximising it. In line with these theoretical efforts, this paper proposes: (i) a new optimisation strategy, in accordance with the classical definition of a multi-principal-components alloy, (ii) improvements in the calculation of the Ω parameter (through the enthalpy of mixing) and (iii) the definition of a new indicator, which we will call the Λ parameter, which also can be optimised. This new parameter not only takes into account the enthalpy of mixing, but also adds an additional term, the elastic lattice distortion enthalpy, caused by the distortion of the crystal lattice. Both the new maximisation strategy and the new parameter aim to ensure that the high precision of the composition at the maximum does not make it impossible to implement. As a novelty, this paper uses the Excel spreadsheet and its Solver tool for the task of maximisation with constraints, using the evolutionary algorithm. The paper applies the optimisation methods discussed to two multi-component systems that have been widely analysed in the specialised scientific literature, in order to compare all the techniques described. Finally, the article points to the possibility that optimisation of the indicator parameters Ω and Λ could provide the two most stable compositions into which an initially single-phase alloy subjected to high temperature would segregate.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 41","pages":"19942 - 19958"},"PeriodicalIF":3.9,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10853-025-11559-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of mesoporous silica nanoparticles with quercitrin hydrogels improves cardiac remodeling and myocardial infarction reprogramming 槲皮素水凝胶设计介孔二氧化硅纳米颗粒改善心脏重构和心肌梗死重编程

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-02 DOI: 10.1007/s10853-025-11556-4

Yize Zhai, Wenzhuo Duan, Ziqing Yang, Jianfei Yang

{"title":"Design of mesoporous silica nanoparticles with quercitrin hydrogels improves cardiac remodeling and myocardial infarction reprogramming","authors":"Yize Zhai, Wenzhuo Duan, Ziqing Yang, Jianfei Yang","doi":"10.1007/s10853-025-11556-4","DOIUrl":"10.1007/s10853-025-11556-4","url":null,"abstract":"<div><p>Myocardial infarction (MI) remains the main cause of human death. Oxidative stress during the acute phase of MI, coupled with unchecked myocardial fibrosis, markedly hinders cardiac repair efficacy post-infarction, resulting in detrimental ventricular remodeling and the risk of heart failure. An injectable hydrogel composite with multifunctional nanoparticles was developed to tackle the various pathological stages of MI. This study utilized mesoporous silica nanoparticles (MSNPs) as nanocarriers for incorporating quercitrin (QCT) with antifibrotic properties, which were then clacked with zinc ions and hyaluronic acid (Zn/HA). The NPs were subsequently incorporated into an alginate (ALG), a biocompatible hydrogel, to improve MI retention. After the in vivo MI model was administered, the hydrogel composites progressively liberated the NPs during their degradation. The outer layer scavenges ROS from the Zn/HA, preventing cell death. The Zn/HA resulted in the release of QCT, which could limit cardiac fibroblast activation and collagen formation. This hydrogel composite exhibited the capacity to enhance cardiac function and diminish infarct size, indicating its potential as a synergic treatment strategy for healing myocardial infarction.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 41","pages":"19710 - 19727"},"PeriodicalIF":3.9,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315643","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}

引用次数: 0

Ferroelectric Al1−xBxN sputtered thin films on n-type Si bottom electrodes 铁电Al1−xBxN溅射薄膜在n型Si底电极上

IF 3.9 3区材料科学

Journal of Materials Science Pub Date : 2025-10-02 DOI: 10.1007/s10853-025-11499-w

Ian Mercer, Chloe Skidmore, Sebastian Calderon, Elizabeth Dickey, Jon-Paul Maria

{"title":"Ferroelectric Al1−xBxN sputtered thin films on n-type Si bottom electrodes","authors":"Ian Mercer, Chloe Skidmore, Sebastian Calderon, Elizabeth Dickey, Jon-Paul Maria","doi":"10.1007/s10853-025-11499-w","DOIUrl":"10.1007/s10853-025-11499-w","url":null,"abstract":"<div><p>Ferroelectric Al<sub>1−<i>x</i></sub>B<sub><i>x</i></sub>N thin films are grown on highly doped and plasma treated (100) <i>n</i>-type Si. We demonstrate ferroelectricity for <i>x</i> = < 0.01, 0.02, 0.06, 0.08, 0.13, and 0.17 where the <i>n</i>-type Si is both the substrate and bottom electrode. Polarization hysteresis reveals remanent polarization values between 130 and 140 μC/cm<sup>2</sup> and coercive field values as low as 4 MV/cm at 1 Hz with low leakage. The highest resistivity and most saturating hysteresis occurs with B contents between <i>x</i> = 0.06 and 0.13. We also demonstrate the impact of substrate plasma treatment time on Al<sub>1−<i>x</i></sub>B<sub><i>x</i></sub>N crystallinity and switching. Cross-sectional transmission electron microscopy and electron energy loss spectra reveal an amorphous 3.5 nm SiN<sub><i>x</i></sub> layer at the Al<sub>1−<i>x</i></sub>B<sub><i>x</i></sub>N interface post-plasma treatment and deposition. The first ~ 5 nm of Al<sub>1−<i>x</i></sub>B<sub><i>x</i></sub>N is crystallographically defective. Using the <i>n</i>-type Si substrate, we demonstrate Al<sub>1−<i>x</i></sub>B<sub><i>x</i></sub>N thickness scaling to 25 nm via low-frequency hysteresis and CV. Serving as the bottom electrode and substrate, the <i>n</i>-type Si enables a streamlined growth process for Al<sub>1−<i>x</i></sub>B<sub><i>x</i></sub>N for a wide range of Al<sub>1−<i>x</i></sub>B<sub><i>x</i></sub>N compositions and layer thicknesses.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 41","pages":"19781 - 19787"},"PeriodicalIF":3.9,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10853-025-11499-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0