High Voltage最新文献

Study on the Impact of Contamination Containing High Proportions of Metals on the AC Flashover Characteristics of Insulators 高含金属污染对绝缘子交流闪络特性影响的研究

IF 4.4 2区工程技术

High Voltage Pub Date : 2025-10-18 DOI: 10.1049/hve2.70101

Zhijin Zhang, Dong Zeng, Bingbing Wang, Xingliang Jiang, Jianlin Hu, Qin Hu

{"title":"Study on the Impact of Contamination Containing High Proportions of Metals on the AC Flashover Characteristics of Insulators","authors":"Zhijin Zhang, Dong Zeng, Bingbing Wang, Xingliang Jiang, Jianlin Hu, Qin Hu","doi":"10.1049/hve2.70101","DOIUrl":"https://doi.org/10.1049/hve2.70101","url":null,"abstract":"In heavy metal industrial areas, the issue of insulation flashover caused by metal contamination on the external insulation of transmission lines has become increasingly prominent. This paper investigates the U160B/155 porcelain insulator, examining how iron, copper and zinc metal contaminations affect its AC flashover characteristics. Furthermore, combining with leakage current, the flashover mechanism of the insulators under the influence of metal particles is analysed. The research results indicate that as the metal content increases, the insulator's flashover gradient (EL) decreases by up to 2.3%–17.2%. Different metal compositions exhibit consistent mechanisms, similarly impacting insulator's dielectric strength with copper showing slightly weaker effect. And then, based on the mechanism of metal particles' influence on the insulator's AC flashover, a formula for calculating EL is proposed and the calculated results are basically consistent with the experimental conditions. Finally, different metal compositions have similar effects on the leakage current, with an increase in metal content leading to an increase in the critical leakage current, which gradually tends to saturation. The research findings of this paper can provide references for AC flashover prediction, assessment and prevention of external insulation in areas with metal contaminants in pollution sources.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"116 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145314743","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

Quasi-Distributed Static/Dynamic Strain Detection of Wind Turbine Blades Based on Fibre Bragg Grating Arrays Sensing 基于光纤光栅阵列传感的风电叶片准分布式静/动态应变检测

IF 4.4 2区工程技术

High Voltage Pub Date : 2025-10-18 DOI: 10.1049/hve2.70057

Zijie Tang, Hong Liu, Changding Wang, Yuxuan Song, Haoyuan Tian, Xuetao Duan, Weikai Zhang, Bingfei Zhang, Weigen Chen

引用次数: 0

Thermal Effect and Hydrodynamic Perturbation in a Coplanar Nanosecond Pulse Periodic Surface Dielectric Barrier Discharge 共面纳秒脉冲周期表面介质阻挡放电中的热效应和流体动力扰动

IF 4.4 2区工程技术

High Voltage Pub Date : 2025-10-11 DOI: 10.1049/hve2.70105

Bin Zhang, Xiaobing Zhang, Bayu Dharmaputra, Nicolas Noiray, Sergey A. Shcherbanev, Yifei Zhu

{"title":"Thermal Effect and Hydrodynamic Perturbation in a Coplanar Nanosecond Pulse Periodic Surface Dielectric Barrier Discharge","authors":"Bin Zhang, Xiaobing Zhang, Bayu Dharmaputra, Nicolas Noiray, Sergey A. Shcherbanev, Yifei Zhu","doi":"10.1049/hve2.70105","DOIUrl":"https://doi.org/10.1049/hve2.70105","url":null,"abstract":"The thermal effect and hydrodynamic perturbation within a high-frequency pulse-periodic nanosecond coplanar surface dielectric barrier discharge (ncSDBD), are studied experimentally and numerically. The discharge is initiated in a coplanar open electrodes arrangement with 10 mm inter-electrode gap for pulse repetition frequencies (PRF) between 10 and 100 kHz. The discharge morphology, heat release, ozone distribution and refractive index perturbation with different repetition frequency are measured by intensified charge-coupled device (ICCD) imaging, spatially resolved emission spectroscopy, optical absorption methods and the background-oriented schlieren technique, respectively. With the increase of frequency and number of pulses, the discharge morphology changes from quasi-uniform structure at 10 kHz to filamentary mode, and a higher gas temperature is observed near the grounded electrode. In turn, the gas heating largely determines the dynamics of ozone. The discharge characteristics and hydrodynamic perturbation are modelled and analysed numerically. The existence of the exposed grounded electrode facilitates the connection between the positive and negative discharges. During the afterglow phase, a large amount of positive charge accumulates near the two exposed electrodes due to charge separation, resulting in a strong body force, which triggers the blowing up of the flow.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"12 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261575","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

Research on the Data-Driven Fast Calculation Method of the Temperature Field Distribution of Valve-Side RIP Bushing Used in UHV DC Converter Transformer 特高压直流换流变压器阀侧RIP套管温度场分布数据驱动快速计算方法研究

IF 4.4 2区工程技术

High Voltage Pub Date : 2025-10-09 DOI: 10.1049/hve2.70109

Zehua Wu, Luming Xin, Jianwei Cheng, Baoying Wu, Zeng Qiang, Qingyu Wang, Linjie Zhao, Zhiye Du

{"title":"Research on the Data-Driven Fast Calculation Method of the Temperature Field Distribution of Valve-Side RIP Bushing Used in UHV DC Converter Transformer","authors":"Zehua Wu, Luming Xin, Jianwei Cheng, Baoying Wu, Zeng Qiang, Qingyu Wang, Linjie Zhao, Zhiye Du","doi":"10.1049/hve2.70109","DOIUrl":"https://doi.org/10.1049/hve2.70109","url":null,"abstract":"Improving the computational efficiency of multi-physics simulation and constructing a real-time online simulation method is an important way to realise the virtual–real fusion of entities and data of power equipment with digital twin. In this paper, a data-driven fast calculation method for the temperature field of resin impregnated paper (RIP) bushing used in converter transformer valve-side is proposed, which combines the data dimensionality reduction technology and the surrogate model. After applying the finite element algorithm to obtain the temperature field distribution of RIP bushing under different operation conditions as the input dataset, the proper orthogonal decomposition (POD) algorithm is adopted to reduce the order and obtain the low-dimensional projection of the temperature data. On this basis, the surrogate model is used to construct the mapping relationship between the sensor monitoring data and the low-dimensional projection, so that it can achieve the fast calculation and reconstruction of temperature field distribution. The results show that this method can effectively and quickly calculate the overall temperature field distribution of the RIP bushing. The maximum relative error and the average relative error are less than 4.5% and 0.25%, respectively. The calculation speed is at the millisecond level, meeting the needs of digitalisation of power equipment.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"7 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261564","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

Developing Implantable High-Sensitivity Piezoelectric Thin-Film Sensor to Monitor Partial Discharge of Generator Stator Windings 研制可植入式高灵敏度压电薄膜传感器监测发电机定子绕组局部放电

IF 4.4 2区工程技术

High Voltage Pub Date : 2025-10-09 DOI: 10.1049/hve2.70108

Ming Wu, Yiming Zhao, Yunfei Zhang, Zongqiang Ren, Yankai Cui, Yongbin Liu, Lisheng Zhong, Xiaojie Lou, Jinghui Gao

{"title":"Developing Implantable High-Sensitivity Piezoelectric Thin-Film Sensor to Monitor Partial Discharge of Generator Stator Windings","authors":"Ming Wu, Yiming Zhao, Yunfei Zhang, Zongqiang Ren, Yankai Cui, Yongbin Liu, Lisheng Zhong, Xiaojie Lou, Jinghui Gao","doi":"10.1049/hve2.70108","DOIUrl":"https://doi.org/10.1049/hve2.70108","url":null,"abstract":"Insulation failures resulting from partial discharges (PD) in generator stator windings represent a leading cause of generator breakdowns. Conventional acoustic emission sensors for detecting PD ultrasonic signals are typically made from bulky piezoelectric materials and are restricted to external placement on the generator. Their distant placement from the PD source limits sensitivity. This study presents an implantable piezoelectric thin-film ultrasonic sensor designed for high-sensitivity, real-time monitoring of PD-induced ultrasonic signals within generator stator windings. The sensor features a Pb(Zr0.52,Ti0.48)O3 thin film with an enlarged electrode area to improve sensitivity. In tests using a pencil-lead break on a polyethylene plate as the ultrasonic source, the implantable sensor exhibited a higher peak-to-peak signal than a commercial broadband sensor and nearly twice that of a commercial polyvinylidene fluoride (PVDF) sensor. The implantable sensor demonstrated an upper frequency detection limit of 80 kHz for pencil-break signals, compared to 30 kHz for both the broadband and PVDF sensors. Full-scale generator experiments validated the sensor’s high-fidelity detection of PD signals, emphasising its potential to enhance insulation condition monitoring in power systems.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"88 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261570","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

The Diverse Behaviours of Discharged Degradation at Varied Interfaces of Silicone Gel/Ceramic Substrates Under High-Frequency Square Wave Voltage 高频方波电压下硅凝胶/陶瓷衬底不同界面放电降解的不同行为

IF 4.4 2区工程技术

High Voltage Pub Date : 2025-10-08 DOI: 10.1049/hve2.70100

Chuang Zhang, Xinlu Li, Hongjian Liu, Ruomeng An, Lingqi Guo, Jiaqi Liu, Shihang Wang, Shengtao Li

{"title":"The Diverse Behaviours of Discharged Degradation at Varied Interfaces of Silicone Gel/Ceramic Substrates Under High-Frequency Square Wave Voltage","authors":"Chuang Zhang, Xinlu Li, Hongjian Liu, Ruomeng An, Lingqi Guo, Jiaqi Liu, Shihang Wang, Shengtao Li","doi":"10.1049/hve2.70100","DOIUrl":"https://doi.org/10.1049/hve2.70100","url":null,"abstract":"Because of the harsh serving conditions of insulated gate bipolar transistor (IGBT) packaged by silicone gel with high voltage and high frequency, it is crucial to reveal the developing characteristics and inhibiting method of discharged degradation at the interface of silicone gel/ceramic substrates. This study investigates and compares the discharge channel development at the interfaces of three kinds of silicone gel/ceramic substrate combinations under bipolar square wave voltage with frequencies from 10 to 30 kHz. The results showed that the discharge channels at the interfaces of silicone gel/Al2O3, silicone gel/AlN and silicone gel/Si3N4 exhibited fast development followed by stagnation, continuous propagation and gradual growth with bubbles, respectively. These characteristics were indicated by the spatial distribution of in situ luminescence and fluorescent imaging. Besides, light emitted by discharge channels was concentrated in the same ultraviolet (UV) range except for the light with a wavelength of 296 nm found only at the interface of silicone gel/AlN. Elements of C and Si were accumulated, whereas the amount of Al decreased in discharge channels. The luminescent behaviours, partial discharge at the rising/falling edge of bipolar square wave voltage, conductivity in channels and behaviour of space charges contributed to the discharge channel development simultaneously. It is also demonstrated that doping UV absorbers into silicone gel can inhibit discharge channel propagation at the interface of silicone gel/ceramic substrates.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"2 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288821","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

Fast Calculation of Transformer Hot Spot Temperature Based on Winding Equivalent Thermal Parameters 基于绕组等效热参数的变压器热点温度快速计算

IF 4.4 2区工程技术

High Voltage Pub Date : 2025-10-08 DOI: 10.1049/hve2.70107

Si Chen, Gehao Sheng, Yingting Luo, Junfei Jiang, Xiuchen Jiang

{"title":"Fast Calculation of Transformer Hot Spot Temperature Based on Winding Equivalent Thermal Parameters","authors":"Si Chen, Gehao Sheng, Yingting Luo, Junfei Jiang, Xiuchen Jiang","doi":"10.1049/hve2.70107","DOIUrl":"https://doi.org/10.1049/hve2.70107","url":null,"abstract":"The hot spot temperature of a transformer is one of the critical indicators reflecting its operating status. Accurate and fast calculation of hot spot temperature is significant for the online monitoring of transformers. Considering the low computational efficiency of the transformer’s numerical full model (FM), this paper presents a model simplification method based on the equivalent thermal parameters of windings to expedite hot spot temperature computation. Initially, the representative volume element (RVE) reflecting the periodic structure of windings is selected to formulate a reduced model (RM) for the transformer. Subsequently, to achieve equivalence between the RM and the FM, the equivalent thermal parameters of the RVE are calculated, containing the equivalent thermal conductivity (ETC), the equivalent density (ED), and the equivalent specific heat capacity (ESHC). Finally, the validity of the RM is verified by the temperature rise test. The results show that, compared with the tested data, the maximum error of the hot spot temperature calculated by the RM is 2.56 K, demonstrating the accuracy of the hot spot temperature calculation by the RM. Compared with the FM, the computing time of the proposed RM is reduced to 1/189, which significantly improves the computational efficiency.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"34 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261565","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

Design and 3D Printing of Ceramic Insulation for Surface Flashover Mitigation in Vacuum 真空表面闪络陶瓷绝缘材料的设计与3D打印

IF 4.4 2区工程技术

High Voltage Pub Date : 2025-09-30 DOI: 10.1049/hve2.70104

Chao Wang, Yulong Yang, Xinru Shi, Xiong Yang, Guangyu Sun, Zhaoquan Chen, Sile Chen, Xing Jin, Songlin Ran, Guanjun Zhang

{"title":"Design and 3D Printing of Ceramic Insulation for Surface Flashover Mitigation in Vacuum","authors":"Chao Wang, Yulong Yang, Xinru Shi, Xiong Yang, Guangyu Sun, Zhaoquan Chen, Sile Chen, Xing Jin, Songlin Ran, Guanjun Zhang","doi":"10.1049/hve2.70104","DOIUrl":"https://doi.org/10.1049/hve2.70104","url":null,"abstract":"Poor electrical strength of the ceramic–vacuum interface restricts the development of various electrical/electronic devices. Limitations of solutions based on conventional ceramics fabrication procedures are becoming prominent with the further demand for compactness and performance improvement. In this study, a fabrication method utilising 3D printing technology is proposed to construct ceramic insulation with designed structures. The processing characteristics, dielectric properties and morphologies of 3D-printed ceramics fabricated under different processing parameters were analysed. The results indicated that fillers' particle size, sintering temperature and sintering aids have significant influence on the dielectric properties and the internal defects. Finally, with optimised processing parameters, Al2O3 ceramics with low dielectric loss and complex structures were fabricated to inhibit vacuum flashover from the perspectives of electric field optimisation and secondary electron emission suppression. Compared with traditional ceramic insulator fabrication methods, the proposed construction strategy has an accurate and efficient fabrication process and high insulation performance, making it promising for industrial applications.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"6 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209684","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

Lightning-Induced Overvoltage on Overhead Distribution Line via Hybrid MTL-PEEC Method 基于混合MTL-PEEC方法的架空配电线路雷击过电压分析

IF 4.4 2区工程技术

High Voltage Pub Date : 2025-09-29 DOI: 10.1049/hve2.70095

Runyu Fu, Jinxin Cao, Yating Zhao, Jianguo Wang, Yaping Du, Li Cai, Mi Zhou, Yuxuan Ding

{"title":"Lightning-Induced Overvoltage on Overhead Distribution Line via Hybrid MTL-PEEC Method","authors":"Runyu Fu, Jinxin Cao, Yating Zhao, Jianguo Wang, Yaping Du, Li Cai, Mi Zhou, Yuxuan Ding","doi":"10.1049/hve2.70095","DOIUrl":"https://doi.org/10.1049/hve2.70095","url":null,"abstract":"Transient simulation are more economical and adaptable means of studying lightning overvoltage for overhead distribution line system compared to experiments. A hybrid multi-transmission-line (MTL)-partial element equivalent circuit (PEEC) method proposed for lightning-induced electromagnetic pulse (LEMP) simulation is verified using the rocket-triggered experimental results under a more complex line configuration for the first time. This method can improve computational efficiency while ensuring calculation accuracy. The agreement between experimental and simulation results further validates the adaptability and accuracy of the proposed method, which is adopted to calculate the LEMP on the extended double-circuit parallel unequal length line. The effects of various factors, such as the strike-point location, the amplitude and waveform of the lightning current, the line shape and length on the amplitude of overvoltage and pole flashover along the line are discussed. For double-circuit distribution lines, when lightning strikes the ground in front of centre of circuit I, the three-phase voltage waveforms are similar, all of which are negative or bipolar oscillation waves. The closer the lightning strike point is to the line, the greater the amplitude of the lightning current, and the voltage waveform develops towards a bipolar waveform, but the main peak remains negative. As the amplitude of lightning current increases, the maximum lightning-induced voltage amplitude along the line increases. The LEMP caused by the subsequent return-stroke current is always greater than that caused by the first return-stroke current. When the grounding resistance increases, the maximum voltage peak amplitude along the line remains unchanged.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"86 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209685","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

Investigation of the Impact of XLPE Cable Ageing on Impedance Mismatch Characteristics and Unbalanced Behaviour in Hybrid Operation Systems 交联聚乙烯电缆老化对混合运行系统阻抗失配特性和不平衡行为影响的研究

IF 4.4 2区工程技术

High Voltage Pub Date : 2025-09-29 DOI: 10.1049/hve2.70106

Liang Zou, Zheng Liu, Qingsong Liu, Zhiyun Han, Shoushui Han

{"title":"Investigation of the Impact of XLPE Cable Ageing on Impedance Mismatch Characteristics and Unbalanced Behaviour in Hybrid Operation Systems","authors":"Liang Zou, Zheng Liu, Qingsong Liu, Zhiyun Han, Shoushui Han","doi":"10.1049/hve2.70106","DOIUrl":"https://doi.org/10.1049/hve2.70106","url":null,"abstract":"In the Hainan–Guangdong interconnection project, oil leakage in oil-filled cables required replacing the faulty core with a single core from a three-core cross-linked polyethylene (XLPE) cable, leading to mixed operation of XLPE and oil-filled cables. However, systematic quantitative analysis on the three-phase unbalance caused by differences in material parameters between the two cable types is lacking. This study focuses on the mixed operation system, using a real-time digital simulation platform to build power flow and current distribution models. Finite element thermal analysis and accelerated thermal ageing experiments were conducted to reveal the evolution of XLPE cable insulation dielectric parameters during ageing. Two evaluation indices, the impedance mismatch coefficient and the length mismatch coefficient, were proposed to quantify how material degradation worsens system unbalance. Results show that after 1440 h of ageing, the system's negative-sequence and zero-sequence unbalance increased by 24.4% and 28.7%, respectively. A critical impedance mismatch threshold is identified; once exceeded, unbalance escalates and the system's stability margin diminishes. This research provides theoretical support for recognising ageing-induced sequence impedance mismatch and related unbalance effects in hybrid submarine cable systems and lays a foundation for optimising operational stability and designing compensation strategies.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209683","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