IEEE Transactions on Dielectrics and Electrical Insulation最新文献

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Ultrasonic Testing of Glass Fiber-Reinforced Polymer Composites Used in High-Voltage Insulating Components
IF 2.9 3区 工程技术
IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-10-10 DOI: 10.1109/TDEI.2024.3478132
Aleksandra Ziaja-Sujdak;Tomasz Nowak;Chau Hon Ho;Pawel Bobrowski
{"title":"Ultrasonic Testing of Glass Fiber-Reinforced Polymer Composites Used in High-Voltage Insulating Components","authors":"Aleksandra Ziaja-Sujdak;Tomasz Nowak;Chau Hon Ho;Pawel Bobrowski","doi":"10.1109/TDEI.2024.3478132","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3478132","url":null,"abstract":"Due to their high strength-to-weight ratio and good dielectric properties fiber-reinforced polymers have gained significant interest in different industrial fields, including the automotive, aerospace, and energy sectors. Despite this attention, the evaluation of the properties of polymer-based composite components, both as part of post-manufacturing control and in-service checks, remains challenging. In this article, ultrasonic testing is investigated as a nondestructive approach for the quality evaluation of high-voltage composite insulators. Classical phase array ultrasonic testing is compared with the total focusing method. The results are validated using computed tomography and a destructive testing approach. It was demonstrated that the proposed ultrasonic testing (UT) technique detected microcracks and small voids in the analyzed samples similar to the reference testing approaches. It was also proved that the water immersion total focusing method can be successfully implemented in a full-scale production process if the scanning and data analysis tasks are properly automated. Since the pilot solution was developed to evaluate objects with relatively simple shapes, further work is needed to cope with more complex geometries.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 1","pages":"83-91"},"PeriodicalIF":2.9,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143106455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Comparison of Initial Voltage Distributions in Layer and Disc Type Power Transformer Windings
IF 2.9 3区 工程技术
IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-10-07 DOI: 10.1109/TDEI.2024.3473893
Bartłomiej Adamczyk;Piotr Pająk;Marek Florkowski
{"title":"Comparison of Initial Voltage Distributions in Layer and Disc Type Power Transformer Windings","authors":"Bartłomiej Adamczyk;Piotr Pająk;Marek Florkowski","doi":"10.1109/TDEI.2024.3473893","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3473893","url":null,"abstract":"Power transformers are subjected to surge overvoltages which can lead to failure of the windings insulation system. The amplitude of the overvoltages in the windings is dependent on the parameters of the surge voltage (duration, waveform, steepness, etc.) and the design of the windings, thus various winding designs perform differently when surge voltage is applied to their terminals. The transformer winding vulnerability to surge phenomena can be estimated based on the initial voltage distribution. In practice, the initial voltage distribution can be improved by increasing the series or decreasing the ground capacitance of the winding, by design changes, or by application of electrostatic shields. This article presents the analysis of the initial voltage distributions in power transformer windings, comparing layer and disk designs. The analysis was done based on the results of measurements of surge voltage waveforms in real-scale winding models, while a lightning impulse is applied to their terminals. The experimental analysis was extended by simulations of the electrostatic potential distribution in the winding models, and the influence of selected factors (shielding, interleaving turns) on the initial voltage distribution was analyzed and discussed. The article is focused on the comparison of initial voltage distribution in transformer windings of disk and layer designs based on quantitative and qualitative analysis.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 1","pages":"73-82"},"PeriodicalIF":2.9,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143106322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Detection of SF₆ Decomposition Components H₂S and CO₂ Based on WDM and CRDS 基于WDM和CRDS的SF₆分解组分H₂S和CO₂检测
IF 2.9 3区 工程技术
IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-10-03 DOI: 10.1109/TDEI.2024.3472002
Haonan Lv;Xinran Zhang;Anhao Jiang;Wenchao Qian;Chaohai Zhang;Xiaoxing Zhang
{"title":"Detection of SF₆ Decomposition Components H₂S and CO₂ Based on WDM and CRDS","authors":"Haonan Lv;Xinran Zhang;Anhao Jiang;Wenchao Qian;Chaohai Zhang;Xiaoxing Zhang","doi":"10.1109/TDEI.2024.3472002","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3472002","url":null,"abstract":"H2S and CO2 are the SF6 decomposition components indicative of severe partial discharge (PD) faults and decomposition of organic insulation materials in partial over thermal (POT) faults, and their detection requires methods with high sensitivity and the capability for long-term online monitoring. In this article, wavelength division multiplexing (WDM) and cavity ring-down spectroscopy (CRDS) were combined to achieve the synchronous and accurate detection of H2S/CO2, which was executed by multiplexing the optical paths of two distributed feedback (DFB) lasers in the 1578/1600 nm wavelength band. To avoid instrument redundancy, a self-developed high-precision laser diode controller (LDC) board was implemented for the current and temperature modulation of dual-laser. By combining the CO2/H\u0000<inline-formula> <tex-math>$_{mathbf {2}}$ </tex-math></inline-formula>\u0000S wavelength band with a high absorption coefficient ratio at 1600 nm, which is less interfered with by other components, and the 1578 nm wavelength band, the sensitivity of the CO\u0000<inline-formula> <tex-math>$_{mathbf {2}}$ </tex-math></inline-formula>\u0000 detection was improved compared with that of the single-beam CRDS system. Utilizing Allan variance analysis for system limit of detection (LoD) analysis, the system achieves a LoD of 0.02/0.31 ppmv (volume fraction \u0000<inline-formula> <tex-math>$1times 10^{text {-6}}$ </tex-math></inline-formula>\u0000) for H2S/CO2 within 28 s. Compared to existing absorption spectroscopy techniques, the detection error of the system for H2S/CO2 is 3.4%/2.4%, with both sensitivity and time efficiency at an advantageous level.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 6","pages":"2922-2929"},"PeriodicalIF":2.9,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Dissolved Gas Analysis for Power Transformer Fault Diagnosis Based on Deep Zero-Shot Learning 基于深度零点学习的电力变压器故障诊断中溶解气体分析
IF 2.9 3区 工程技术
IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-10-01 DOI: 10.1109/TDEI.2024.3469913
Leixiao Lei;Yigang He;Zhikai Xing
{"title":"Dissolved Gas Analysis for Power Transformer Fault Diagnosis Based on Deep Zero-Shot Learning","authors":"Leixiao Lei;Yigang He;Zhikai Xing","doi":"10.1109/TDEI.2024.3469913","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3469913","url":null,"abstract":"Rapid and accurate fault diagnosis methods of power transformers are essential to ensure power systems’ safe and stable operation. However, the problem of limited fault data and missing data leads to inadequate feature learning, mapping offset, and low accuracy of fault diagnosis. To solve this problem, this study presents a deep zero-shot learning (DZSL) model to diagnose the unseen class fault for the dissolved gas analysis (DGA). First, a specific attribute matrix is presented to build a relationship between fault states and the attribute. Then, the channel-space-time attention network extracts the significant features from the dissolved gas in oil. The multiscale deep residual contraction networks (MDRNs) learn the connection between the attribute matrix and the main features. Finally, the cosine similarity comparison method obtains the transformer fault status. The performance of the proposed model is verified by the measured data of dissolved gas in the oil of the power transformer. The experimental results show that the model has a better performance than other compared methods.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 6","pages":"3011-3020"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Surface Electric Field Measurement of Composite Insulator Using an Optical Waveguide Sensor
IF 2.9 3区 工程技术
IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-10-01 DOI: 10.1109/TDEI.2024.3471744
Jiahong Zhang;Weichang Li;Jiali Shi;Jing Zhang
{"title":"Surface Electric Field Measurement of Composite Insulator Using an Optical Waveguide Sensor","authors":"Jiahong Zhang;Weichang Li;Jiali Shi;Jing Zhang","doi":"10.1109/TDEI.2024.3471744","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3471744","url":null,"abstract":"In this article, an integrated optical waveguide sensor is designed and developed to comprehensively analyze the surface electric field distribution characteristics of composite insulators. Based on the optical waveguide electric field sensor, an experimental system is set up for measuring the axial and radial electric fields along the surface of composite insulators under normal, damaged, and internally defective conditions. The experimental results show that when a 10kV power frequency voltage is connected, the radial and axial electric fields at the low and high voltage (HV) ends of the normal insulator are 21.53, 53.07 kV/m and 47.55, 105.12 kV/m, respectively. When the insulator surface is damaged, the radial and axial electric field intensities at the damaged locations increase by 37.59%–204.85% and 12.89%–32.69%, respectively. When an internal defect occurred, the radial and axial electric fields along the defect area increase by 18% and decrease by 127.72%, respectively. The radial electric field is more affected by the defect. The comparison with the calculation results shows that the integrated optical waveguide electric field sensor has great potential capability to be used for measuring the surface electric field of insulators.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"1218-1227"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Prediction of Dissolved Alcohol Concentrations in Transformer Oil and Aging Evaluation of Cellulose Insulation
IF 2.9 3区 工程技术
IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-09-30 DOI: 10.1109/TDEI.2024.3470753
Heng Zhang;Yuan Zhang;Zaijun Jiang;Xianhao Fan;Wen Li;Chuying Liu;Enze Zhang;Thomas Wu;Jiefeng Liu
{"title":"Prediction of Dissolved Alcohol Concentrations in Transformer Oil and Aging Evaluation of Cellulose Insulation","authors":"Heng Zhang;Yuan Zhang;Zaijun Jiang;Xianhao Fan;Wen Li;Chuying Liu;Enze Zhang;Thomas Wu;Jiefeng Liu","doi":"10.1109/TDEI.2024.3470753","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3470753","url":null,"abstract":"Alcohol (methanol and ethanol) markers in transformer oil have progressively played a crucial role in assessing the aging state of cellulose paper. There is a lack of reported studies on the prediction of alcohol concentration in transformer oil. Given this, this work presents an approach that employs an atomic orbit search optimized support vector machine (AOS-SVM) to predict the alcohol concentration. Initially, oil-paper insulation samples are prepared, and the alcohol concentrations are determined. Furthermore, methanol and ethanol concentrations in oil were predicted using AOS-SVM, and the MSE of the prediction results reached 0.0428 and 0.0064, respectively. Eventually, a quantitative model combining methanol, ethanol, and degree of polymerization (DP) was constructed to evaluate the aging of insulating paper, which verified the reliability of the proposed model. In this regard, the proposed method exhibits reliable predictive performance in terms of alcohol concentration in oil, thereby contributing to the effective evaluation of the aging state of insulating paper.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"1238-1245"},"PeriodicalIF":2.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Transient Earth Voltage Sensor Measurements as a Nonintrusive Tool for Partial Discharge Analysis in Switchgears 瞬态接地电压传感器测量作为开关设备局部放电分析的非侵入式工具
IF 2.9 3区 工程技术
IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-09-30 DOI: 10.1109/TDEI.2024.3470755
F. Guastavino;L. Della Giovanna;F. Gallesi;E. Torello
{"title":"Transient Earth Voltage Sensor Measurements as a Nonintrusive Tool for Partial Discharge Analysis in Switchgears","authors":"F. Guastavino;L. Della Giovanna;F. Gallesi;E. Torello","doi":"10.1109/TDEI.2024.3470755","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3470755","url":null,"abstract":"Partial discharges (PDs) are a major cause of electrical stress and insulation failure, but their presence is also a symptom of insulation problems. Online PDs measurement allows for continuous monitoring of the insulation system. An online PDs measurement system for air-insulated switchgear (AIS) is developed, based on transient earth voltage (TEV) sensors, and evaluated for morphological analysis of insulation defects. The evaluation is conducted comparing the developed system with a conventional PD measurement system based on the IEC 60270 standard. The aim of the proposed system is to facilitate its integration with minimal retrofitting and operational disruption assuring the possibility to identify and analyze the defects. A pilot system, employing an AIS, is designed and tested. The results from both the PDs measurement systems are presented and discussed. Furthermore, the impact of a high capacitive load connected to the switchgear is investigated, and the possible effects of a capacitive load due to an MV cable is considered by simulating the realistic cable geometry.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 6","pages":"2930-2937"},"PeriodicalIF":2.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Improved Dielectric and Energy Storage Performance of BOPP Film by Decreasing Ambient Temperature
IF 2.9 3区 工程技术
IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-09-30 DOI: 10.1109/TDEI.2024.3470757
Ke Chen;B. X. Du;Haoliang Liu;Meng Xiao
{"title":"Improved Dielectric and Energy Storage Performance of BOPP Film by Decreasing Ambient Temperature","authors":"Ke Chen;B. X. Du;Haoliang Liu;Meng Xiao","doi":"10.1109/TDEI.2024.3470757","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3470757","url":null,"abstract":"In this article, the effect of low temperature on biaxially oriented polypropylene (BOPP) is reported. The experimental results show that the films have improved dielectric and energy storage properties with the ambient temperature decreasing. The highest dc breakdown strength as high as 861.9 kV/mm is obtained at −196 °C, signifying a substantial 30.3% enhancement compared to that at 20 °C. It can be attributed to that the vitreous molecular chain structure has higher intermolecular forces to protect the molecular chain from being destroyed. Furthermore, the maximum discharge energy density attains 7.16 J/cm3, achieving a commendable efficiency of 91.08%. The migration behavior of carriers at low temperatures is inhibited, which diminishes the conductivity current. The dc conductivity is reduced by three orders of magnitude. The initial voltage of partial discharge (PD) is 1.81 times higher than that at room temperature. This article provides a new direction and insight for the development of film capacitors with high energy density and low loss.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"1056-1063"},"PeriodicalIF":2.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Partial Discharge Characteristics of Polyimide Under the High-Frequency Multilevel Stepped Waveform
IF 2.9 3区 工程技术
IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-09-27 DOI: 10.1109/TDEI.2024.3469157
Ruitao Shao;Jun Jiang;Wu Chen;Zhibang Shen
{"title":"Partial Discharge Characteristics of Polyimide Under the High-Frequency Multilevel Stepped Waveform","authors":"Ruitao Shao;Jun Jiang;Wu Chen;Zhibang Shen","doi":"10.1109/TDEI.2024.3469157","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3469157","url":null,"abstract":"High-power high-voltage high-frequency transformers (H3Ts) have been widely applied in the modular multilevel converter (MMC) due to their high efficiency and flexibility. However, the special electric stress for the insulation is introduced into this type of power converter, that is the high-frequency multilevel stepped waveform stresses generated by the converter’s switching actions. Therefore, it is important to investigate partial discharge (PD) characteristics in H3Ts under the stepped waveform. This article analyses the influence of frequency and voltage level numbers on the PD initial voltage (PDIV) and time-resolved PD (TRPD). Experimental results indicate that PDIV shows a decreasing trend within the frequency range of 10–100 kHz. Moreover, it is observed that the five-level stepped waveform results in a 50% reduction in PD numbers at 10 kHz when compared to the two-level stepped waveform. The space charge movement during platform time induces the production of PD, which is shown as two peaks on the TRPD pattern. These results provide experimental and theoretical support for the diagnosis of PD under MMC stepped waveforms for the application in H3Ts.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"1113-1122"},"PeriodicalIF":2.9,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Lambert W Function Applications in Electrical Insulation Engineering
IF 2.9 3区 工程技术
IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2024-09-27 DOI: 10.1109/TDEI.2024.3469154
Mariani Daniele;Arturo Popoli;Paolo Seri;Andrea Cavallini;Leonardo Gasperini;Giacomo Selleri;Alberto Rumi;Simone Vincenzo Suraci;Davide Fabiani
{"title":"Lambert W Function Applications in Electrical Insulation Engineering","authors":"Mariani Daniele;Arturo Popoli;Paolo Seri;Andrea Cavallini;Leonardo Gasperini;Giacomo Selleri;Alberto Rumi;Simone Vincenzo Suraci;Davide Fabiani","doi":"10.1109/TDEI.2024.3469154","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3469154","url":null,"abstract":"Mathematical modeling is a fundamental instrument in the development of theoretical validation for experimental results and in their interpretation. The gist of this article is the application of a special multivalued function, called Lambert W function, to several aspects of electrical engineering. This multivalued function serves the purpose of inverting a vast gamut of expressions involving exponential functions and can be used in many models concerning electrical insulation issues, yielding lower computational times as opposed to other methods to solve nonlinear problems. In particular, this article presents the analytical calculation of parameters for capacitor field and equipotential lines, Paschen’s law inversion, a model for electric field distribution in power cables, the inversion of Schottky and Dissado, Montanari, and Mazzanti model for cable life estimation.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"32 2","pages":"933-939"},"PeriodicalIF":2.9,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10697207","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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