Advanced Powder Technology最新文献_第3页

Heterogeneous amorphous structure and bioactivity in silver-doped bioactive glasses synthesized by spray drying methods 喷雾干燥法制备掺银生物活性玻璃的非均质非晶结构和生物活性

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-09-06 DOI: 10.1016/j.apt.2025.105054

Fumiya Araki , Meng-Ze Lin , Shao-Ju Shih , Manabu Ishimaru

{"title":"Heterogeneous amorphous structure and bioactivity in silver-doped bioactive glasses synthesized by spray drying methods","authors":"Fumiya Araki , Meng-Ze Lin , Shao-Ju Shih , Manabu Ishimaru","doi":"10.1016/j.apt.2025.105054","DOIUrl":"10.1016/j.apt.2025.105054","url":null,"abstract":"<div><div>In this study, Ag-doped SiO<sub>2</sub>-CaO-P<sub>2</sub>O<sub>5</sub> bioactive glasses (BGs) were synthesized by a spray drying method, and their atomistic structures were investigated by transmission electron microscopy, X-ray diffraction, and nuclear magnetic resonance. The constituent elements (Si, Ca, P, and O) were homogeneously distributed in the pure (non-doped) BG, but a small Ca- and P-rich layer was present on the surface. The segregation of Ca and P on the surface became more pronounced with increasing Ag concentration. The atomic pair-distribution functions extracted by nanobeam electron diffraction revealed that the Ag-doped BG particles had a heterogeneous amorphous structure: the interior and surface of the BG particles were similar to those of SiO<sub>2</sub> and phosphate-based glasses, respectively. The addition of Ag resulted in less non-bridging oxygen, which may be due to the removal of the network modifier ion (Ca) from the SiO<sub>2</sub> network. <em>In vitro</em> bioactive tests of the pure BG and Ag-doped BG particles revealed that the formation of hydroxyapatite was enhanced by Ag doping, although the amount of non-bridging oxygen decreased. This is attributed to the P- and Ca-rich surface layer, which triggers the nucleation and growth of hydroxyapatite.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 11","pages":"Article 105054"},"PeriodicalIF":4.2,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004826","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}

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Full title (Editorial Board Members) 全称（编委成员）

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-09-04 DOI: 10.1016/S0921-8831(25)00265-1

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Inside Front Cover (Aims & Scope, Editors) 内页封面（Aims & Scope，编辑）

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-09-04 DOI: 10.1016/S0921-8831(25)00264-X

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Revealing the photocatalytic performance of the dual Z-scheme MIL-100(Fe)@Bi2MoO6/MoS2 heterojunction in the degradation of Acid Blue 92 azo dye 揭示双z型MIL-100(Fe)@Bi2MoO6/MoS2异质结在降解酸性蓝92偶氮染料中的光催化性能

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-09-03 DOI: 10.1016/j.apt.2025.105050

Hossein Ramezani , Shahnaz Ghsaemi , Tayebeh Hamzehlouyan

{"title":"Revealing the photocatalytic performance of the dual Z-scheme MIL-100(Fe)@Bi2MoO6/MoS2 heterojunction in the degradation of Acid Blue 92 azo dye","authors":"Hossein Ramezani , Shahnaz Ghsaemi , Tayebeh Hamzehlouyan","doi":"10.1016/j.apt.2025.105050","DOIUrl":"10.1016/j.apt.2025.105050","url":null,"abstract":"<div><div>Bi<sub>2</sub>MoO<sub>6</sub> is recognized as a promising photocatalyst for water post-treatment. However, its effectiveness is limited by rapid electron-hole recombination and poor sensitivity to visible light. In this study, a MIL-100(Fe)@Bi<sub>2</sub>MoO<sub>6</sub>/MoS<sub>2</sub> ternary composite was synthesized via hydrothermal method. Initially, a nanoflower-like Bi<sub>2</sub>MoO<sub>6</sub>@MoS<sub>2</sub> structure was synthesized, utilizing MoS<sub>2</sub> as a stable framework for Bi<sub>2</sub>MoO<sub>6</sub> nanoflakes. This configuration enhances light absorption and increases the number of catalytic active sites. Incorporation of MIL-100(Fe) into the binary photocatalyst creates a core–shell structure that increases the surface area and reduces electron-hole recombination. The characterization techniques confirm the successful immobilization of Bi<sub>2</sub>MoO<sub>6</sub> and MIL-100(Fe) on the surface of MoS<sub>2</sub> and the binary composite, respectively. The MIL-100(Fe)@Bi<sub>2</sub>MoO<sub>6</sub>/MoS<sub>2</sub> ternary composite exhibits superior photocatalytic activity in degrading nonbiodegradable pollutants, achieving 82 % degradation of Acid Blue 92 under visible light, compared to 40 % of pure Bi<sub>2</sub>MoO<sub>6</sub>. The improved photocatalytic activity is primarily attributed to the synthesis of MIL-100(Fe)@Bi<sub>2</sub>MoO<sub>6</sub>/MoS<sub>2</sub> composite, which facilitates efficient electron-hole separation and transfer. According to active radical trapping experiments, the most active reactive species identified are photogenerated O<sub>2</sub><sup>•−</sup>, h<sup>+</sup>. A potential mechanism underlying the improved photocatalytic activity of the MIL-100(Fe)/Bi<sub>2</sub>MoO<sub>6</sub>/MoS<sub>2</sub> heterostructure has been explored and discussed based on the results of the scavenger experiments.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 11","pages":"Article 105050"},"PeriodicalIF":4.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989301","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}

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Accelerating the decarbonization of bio–oxidation residues from carboniferous high arsenic sulfide refractory gold ores via suspension oxidation roasting for exceptional gold leaching efficiency 悬浮氧化焙烧加速石炭系高砷硫化难浸金矿生物氧化渣脱碳，提高浸金效率

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-09-02 DOI: 10.1016/j.apt.2025.105053

Qianfei Zhao , Weirong Wu , Peng Gao , Yanjun Li , Zhidong Tang

{"title":"Accelerating the decarbonization of bio–oxidation residues from carboniferous high arsenic sulfide refractory gold ores via suspension oxidation roasting for exceptional gold leaching efficiency","authors":"Qianfei Zhao , Weirong Wu , Peng Gao , Yanjun Li , Zhidong Tang","doi":"10.1016/j.apt.2025.105053","DOIUrl":"10.1016/j.apt.2025.105053","url":null,"abstract":"<div><div>To address the low gold recovery following bio–oxidation of carboniferous high–arsenic sulfide refractory gold ores, this study proposes the application of suspension oxidation roasting as a secondary treatment strategy aimed at disrupting carbonaceous encapsulation and structural constraints, thus facilitating gold exposure and improving leaching efficiency. Thermal analysis employing TG–FTIR–GC–MS indicated that efficient decarbonization predominantly occurs within the temperature range of 550 °C to 650 °C, while arsenic volatilization remains negligible. XRD analysis further verified that pyrite and jarosite undergo thermal decomposition within this range, leading to the formation of stable iron oxides capable of immobilizing sulfur and arsenic. SEM–EDS and BET analyses demonstrated that the roasted residues exhibit a honeycomb–like porous morphology, which markedly increases surface reactivity and facilitates leachant infiltration. Under the optimized condition of 550 °C for 45 min, the carbonaceous removal efficiency reached 99.5 %, arsenic fixation exceeded 95.0 % and the gold leaching rate was significantly enhanced from 15.4 % to 80.2 %. These findings confirm the effectiveness of suspension oxidation roasting in enhancing gold recovery from bio–oxidation residues and provide both theoretical insight and technical support for the efficient treatment of carbonaceous high–arsenic sulfide refractory gold ores.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 11","pages":"Article 105053"},"PeriodicalIF":4.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932408","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}

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Freezing behaviour and spray freeze granulation drying of silicon nitride slurries prepared from tert-butyl alcohol and cyclohexane solvent mixtures 叔丁醇和环己烷溶剂混合物制备的氮化硅浆料的冷冻性能和喷雾冷冻造粒干燥

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-09-01 DOI: 10.1016/j.apt.2025.105030

Riko Yamazaki , Junichi Tatami , Motoyuki Iijima , Shinya Kawaguchi , Naoki Kondo

{"title":"Freezing behaviour and spray freeze granulation drying of silicon nitride slurries prepared from tert-butyl alcohol and cyclohexane solvent mixtures","authors":"Riko Yamazaki , Junichi Tatami , Motoyuki Iijima , Shinya Kawaguchi , Naoki Kondo","doi":"10.1016/j.apt.2025.105030","DOIUrl":"10.1016/j.apt.2025.105030","url":null,"abstract":"<div><div>A spray freeze granulation drying technique is suitable for obtaining soft and homogeneous granules, but the use of an aqueous slurry could degrade raw materials such as nitride. In this study, the freezing behaviour of silicon nitride slurries prepared from <em>tert</em>-butyl alcohol, cyclohexane, and their solvent mixtures was investigated, and granules were obtained from these slurries by the spray freeze granulation drying technique. An in situ optical coherence tomography observation of the freezing behaviour showed that the slurry from a solvent mixture of the eutectic composition froze in a single step in a shorter time than the other solvent mixtures. The solvent mixture of the eutectic composition yielded a homogeneous internal structure with fine pores in the freeze-dried body. The granules of that composition prepared by spray freeze granulation drying had a smaller size and a narrower size distribution, which resulted in a homogeneous internal structure of silicon nitride ceramics.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 11","pages":"Article 105030"},"PeriodicalIF":4.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921146","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}

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One-step solid-phase synthesis of an efficient heterojunction photocatalyst ZnS/g-C3N4 for H2 production 一步固相合成高效异结光催化剂ZnS/g-C3N4制氢

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-09-01 DOI: 10.1016/j.apt.2025.105041

Cai Yang, Yang Li, Li-Hua Gan

{"title":"One-step solid-phase synthesis of an efficient heterojunction photocatalyst ZnS/g-C3N4 for H2 production","authors":"Cai Yang, Yang Li, Li-Hua Gan","doi":"10.1016/j.apt.2025.105041","DOIUrl":"10.1016/j.apt.2025.105041","url":null,"abstract":"<div><div>The relatively low utilization ratio of visible light and fast recombination of photogenerated carriers seriously restrict the photocatalytic capability of g-C<sub>3</sub>N<sub>4</sub>. In this study, we used Zn (CH<sub>3</sub>COO) <sub>2</sub>·2H<sub>2</sub>O and thiourea as precursors to successfully construct a stable ZnS/g-C<sub>3</sub>N<sub>4</sub> heterojunction photocatalyst through a simple one-step solid-phase method. The results of the UV–vis DRS test show that ZnS/g-C<sub>3</sub>N<sub>4</sub> can significantly improve absorption capacity and broaden the absorption range of light, and photoelectrochemical and photoluminescence spectroscopy show that it effectively weakens carrier recombination. The H<sub>2</sub> evolution experiments show that under visible light irradiation, the H<sub>2</sub> generation rate of the 100 ZnS/g-C<sub>3</sub>N<sub>4</sub> (100-ZSCN) catalyst is more than 22 times higher than that of bare g-C<sub>3</sub>N<sub>4</sub> or ZnS with the same co-catalyst Pt. Based on experimental characterization, density functional theory calculations, and photocatalytic activity tests, we rationalize its photocatalytic hydrogen production mechanism. This study has significant implications for exploiting efficient photocatalysts for H<sub>2</sub> production.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 11","pages":"Article 105041"},"PeriodicalIF":4.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926258","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}

引用次数: 0

Machine learning modeling of XGBoost and SVR for predicting rice husk dust ignition energy based on crushed brown rice content 基于碾碎糙米含量的谷壳粉尘点火能预测的XGBoost机器学习建模与SVR

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-08-30 DOI: 10.1016/j.apt.2025.105049

Jinglin Zhang , Haiyan Chen , Zhenguo Du , Shikai Bao , Chang Li , Gang Li , Caijun Bai , Weitong Liang , Zhiqun Xie , Chunmiao Yuan

{"title":"Machine learning modeling of XGBoost and SVR for predicting rice husk dust ignition energy based on crushed brown rice content","authors":"Jinglin Zhang , Haiyan Chen , Zhenguo Du , Shikai Bao , Chang Li , Gang Li , Caijun Bai , Weitong Liang , Zhiqun Xie , Chunmiao Yuan","doi":"10.1016/j.apt.2025.105049","DOIUrl":"10.1016/j.apt.2025.105049","url":null,"abstract":"<div><div>There exists the risk of dust explosion during the rice husk dust production and transportation. It is of great significance to clarify the parameter of the minimum ignition energy (MIE) of the dust cloud for reducing the dust explosion. This study explored the influence of the inclusion proportion of crushed brown rice (abbreviated as crushed brown rice) on the MIE of rice husk dust cloud. It was found that with the incorporation of crushed brown rice, the MIE of rice husk dust showed an increasing trend. However, a small amount of crushed brown rice can improve the dispersion of dust clouds, thereby reducing their ignition energy and increasing the risk of dust explosions. Moreover, two machine learning modeling methods, namely the Extreme Gradient Boosting algorithm (XGBoost) and the Support Vector Regression algorithm (SVR), were utilized to model the MIE of the rice husk. The grid search was employed to automatically optimize the hyperparameters. In the optimal state of the model, the R<sup>2</sup> value of the SVR model, which is 0.913, is higher than that of the XGBoost model, which is 0.883, and the prediction error is lower at the same time, thus demonstrating that the SVR model is more suitable for the study of the MIE of the rice husk. Grain dust processing and transportation should therefore take these findings into consideration.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 11","pages":"Article 105049"},"PeriodicalIF":4.2,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144920058","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}

引用次数: 0

Bam@MIL-125/Ag evaporator: Synergistically boosting evaporation and photodegradation for Holistic water management Bam@MIL-125/Ag蒸发器：协同促进蒸发和光降解，实现整体水管理

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-08-30 DOI: 10.1016/j.apt.2025.105051

Xinyu Cai , Yiduo Chen , Dandan Wang, Zhongming Su, Weiting Yang

{"title":"Bam@MIL-125/Ag evaporator: Synergistically boosting evaporation and photodegradation for Holistic water management","authors":"Xinyu Cai , Yiduo Chen , Dandan Wang, Zhongming Su, Weiting Yang","doi":"10.1016/j.apt.2025.105051","DOIUrl":"10.1016/j.apt.2025.105051","url":null,"abstract":"<div><div>Here, a biomass-based composite interfacial evaporation system utilizing a Ti-MIL-125-NH<sub>2</sub>/Ag (Ti-MIL-125/Ag; MIL-125/Ag) catalyst was successfully developed, which innovatively achieved synergistic enhancement of photothermal conversion and photocatalytic degradation. Initially, the precisely engineered Ag nanoparticles-modified Ti-MIL-125-NH<sub>2</sub> significantly enhanced visible-light absorption capacity and charge carrier separation efficiency. Furthermore, a Bam@MIL-125/Ag three-dimensional porous interfacial evaporator was constructed using eco-friendly and low-cost bamboo substrate through the sodium alginate gelation. At a height of 1.5 cm, 5 wt% of Ag loading, and a content of 20 mg of Ti-MIL-125/Ag in the Bam@MIL-125 evaporator, the Bam@MIL-125/Ag system under 1 kW·m<sup>−2</sup> simulated sunlight demonstrated an evaporation rate of 1.45 kg·m<sup>−2</sup>·h<sup>−1</sup> and a solar-to-vapor conversion efficiency of 81.2 %. Notably, leveraging photo-generated free radicals from Ti-MIL-125/Ag, the Bam@MIL-125/Ag evaporator achieved efficient removal (98.67 %) of volatile organic compounds (VOCs) in water through the photocatalytic degradation process. Furthermore, when operating continuously for 56 h in a 3.5 wt% NaCl solution, the Bam@MIL-125/Ag evaporator maintained an evaporation rate above 1.4 kg·m<sup>−2</sup>·h<sup>−1</sup>, demonstrating excellent stability, salt resistance, and heavy metal removal capabilities in practical applications. This work provides an innovative strategy for designing MOF-based evaporators that combine high-performance water production with advanced purification functionality.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 11","pages":"Article 105051"},"PeriodicalIF":4.2,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144920014","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}

引用次数: 0

Evaluating the effects of electrolytes on the interaction forces between alumina surfaces in polyacrylic acid solutions using atomic force microscopy 用原子力显微镜评价电解质对聚丙烯酸溶液中氧化铝表面相互作用力的影响

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-08-23 DOI: 10.1016/j.apt.2025.105028

Naoto Kishimoto , Ryota Kaji , Katsumi Tsuchiya , Koreyoshi Imamura , Naoyuki Ishida

{"title":"Evaluating the effects of electrolytes on the interaction forces between alumina surfaces in polyacrylic acid solutions using atomic force microscopy","authors":"Naoto Kishimoto , Ryota Kaji , Katsumi Tsuchiya , Koreyoshi Imamura , Naoyuki Ishida","doi":"10.1016/j.apt.2025.105028","DOIUrl":"10.1016/j.apt.2025.105028","url":null,"abstract":"<div><div>Evaluation and control of ceramic slurry at the microscopic level are critical to ensure consistent quality in manufactured ceramics. Notably, metal ions such as Mg<sup>2+</sup> and Al<sup>3+</sup> are common in ceramic slurries and significantly influence the stability of particle. This study applied atomic force microscopy to investigate the interaction forces between alumina particle surfaces in the presence of different concentrations of three metal ions and polyacrylic acid (PAA), a widely used dispersant.</div><div>The attractive forces observed at low PAA concentrations were attributed to polymer bridging between alumina surfaces, whereas the repulsive forces observed at high PAA concentrations were attributed to the domination of steric repulsion between adsorbed PAA molecules. The presence of multivalent metal ions, such as Mg<sup>2+</sup> and Al<sup>3+</sup>, modulated these interactions; an increasing ion valence induced a transition from repulsive to attractive force, primarily owing to electrostatic screening, which caused conformational collapse of the PAA chains and diminished the range of steric repulsion. Similarly, increasing the concentration of these metal ions decreased the range of repulsive forces, eventually resulting in a net attraction driven by the same electrostatic and polymer conformation mechanisms. Notably, the addition of 0.1 M AlCl<sub>3</sub> produced an anomalous long-range attraction between surfaces that could not be explained by conventional mechanisms, such as polymer bridging or electrostatic interactions between charge domains.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 10","pages":"Article 105028"},"PeriodicalIF":4.2,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890581","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}

引用次数: 0