Low-carbon guidance on the demand side of the power system is helpful to reduce the carbon emission of the power system. The existing demand-side market lacks an effective guidance mechanism for carbon emission reduction. This paper modifies the existing demand response market by introducing carbon emission control, including the carbon emission constraint and the CO2 price from the carbon market. The OPF-based acquisition of marginal emission factors is used to quantify the carbon emission reduction. Case studies show that the modified demand response market can not only achieve demand-side carbon reduction, but also increase the surplus of demand response resources. The introduction of the CO2 price can reduce the payment from the market to demand response resources, which provides a viable source of funding to facilitate the participation of demand response.
{"title":"Modified Demand Response Market for Carbon Emission Control","authors":"Yuzhou Zhao, Bin Qian, Xiaoming Lin, Shan He, Jing Wang, Yuming Zhao","doi":"10.1109/CEECT55960.2022.10030303","DOIUrl":"https://doi.org/10.1109/CEECT55960.2022.10030303","url":null,"abstract":"Low-carbon guidance on the demand side of the power system is helpful to reduce the carbon emission of the power system. The existing demand-side market lacks an effective guidance mechanism for carbon emission reduction. This paper modifies the existing demand response market by introducing carbon emission control, including the carbon emission constraint and the CO2 price from the carbon market. The OPF-based acquisition of marginal emission factors is used to quantify the carbon emission reduction. Case studies show that the modified demand response market can not only achieve demand-side carbon reduction, but also increase the surplus of demand response resources. The introduction of the CO2 price can reduce the payment from the market to demand response resources, which provides a viable source of funding to facilitate the participation of demand response.","PeriodicalId":187017,"journal":{"name":"2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126105664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.1109/CEECT55960.2022.10030564
Xin-Guo Yu, Shihao Zhang, Xiangyang Peng, B. Feng, Shihu Yu, Wenbo Zhu, Junbo Deng
1Abstract-As the protection device of submarine cable of new energy offshore wind power transmission system in new power system,J-tube has such problem as hinders the external heat dissipation of cable and restricts the carrying capacity of the whole wind power transmission line. Since the heat dissipation condition of cables in seawater is much better than that in air, the limiting effect of the air section of the J-tube on the carrying capacity is more significant. This paper takes ± 400 kV DC submarine cable under the J-tube laying environment as the research object, and a three-dimensional simulation model of the air section of J-tube is established using COMSOL Multiphysics software to study the influence of ambient temperature and pipe's outer diameter on cable's steady-state carrying capacity. The results show that with the increase of ambient temperature, J-tube submarine cable's carrying capacity will be significantly lower, from 2015A in 10°C down to 1386A in 40°C. And as the outer diameter of J-tube increases, the current carrying capacity of the cable also increases, because air flow in the tube also becomes more intense.
{"title":"Simulation Study on Steady-State Ampacity of ±400 kV J-tube DC Submarine Cable","authors":"Xin-Guo Yu, Shihao Zhang, Xiangyang Peng, B. Feng, Shihu Yu, Wenbo Zhu, Junbo Deng","doi":"10.1109/CEECT55960.2022.10030564","DOIUrl":"https://doi.org/10.1109/CEECT55960.2022.10030564","url":null,"abstract":"1Abstract-As the protection device of submarine cable of new energy offshore wind power transmission system in new power system,J-tube has such problem as hinders the external heat dissipation of cable and restricts the carrying capacity of the whole wind power transmission line. Since the heat dissipation condition of cables in seawater is much better than that in air, the limiting effect of the air section of the J-tube on the carrying capacity is more significant. This paper takes ± 400 kV DC submarine cable under the J-tube laying environment as the research object, and a three-dimensional simulation model of the air section of J-tube is established using COMSOL Multiphysics software to study the influence of ambient temperature and pipe's outer diameter on cable's steady-state carrying capacity. The results show that with the increase of ambient temperature, J-tube submarine cable's carrying capacity will be significantly lower, from 2015A in 10°C down to 1386A in 40°C. And as the outer diameter of J-tube increases, the current carrying capacity of the cable also increases, because air flow in the tube also becomes more intense.","PeriodicalId":187017,"journal":{"name":"2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT)","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122372309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.1109/CEECT55960.2022.10030508
Peng Liu, Chen Li, Zhiyuan He, Dahai Yu, Zhiliang Xu, Min Lei
The power transformers are important devices in power systems. Some issues still exist and have been well addressed in the traditional methods. The traditional data-driven methods use the training data samples to train the samples and ignore the data distribution differences. This decreases the classification performance of the trained model on the testing data set. To address this problem, we proposed a transfer convolutional neural network (TCNN), which considers both of the classification loss on the domain data samples and the domain transfer loss. In this way, the proposed model has higher transferability and generalization ability on the testing samples, and thus the classification performance has been improved. tal results validate the effectiveness of the proposed method.
{"title":"Deep Domain Adaptation for Powe Transformer Fault Diagnosis Based on Transfer Convolutional Neural Network","authors":"Peng Liu, Chen Li, Zhiyuan He, Dahai Yu, Zhiliang Xu, Min Lei","doi":"10.1109/CEECT55960.2022.10030508","DOIUrl":"https://doi.org/10.1109/CEECT55960.2022.10030508","url":null,"abstract":"The power transformers are important devices in power systems. Some issues still exist and have been well addressed in the traditional methods. The traditional data-driven methods use the training data samples to train the samples and ignore the data distribution differences. This decreases the classification performance of the trained model on the testing data set. To address this problem, we proposed a transfer convolutional neural network (TCNN), which considers both of the classification loss on the domain data samples and the domain transfer loss. In this way, the proposed model has higher transferability and generalization ability on the testing samples, and thus the classification performance has been improved. tal results validate the effectiveness of the proposed method.","PeriodicalId":187017,"journal":{"name":"2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125541622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.1109/CEECT55960.2022.10030300
Mengwei Wang, Shijun Wang, Zilei Wang
To further reduce the lifetime carbon emission index of substations, a design scheme of low-carbon 110kV indoor substation is proposed. In the proposed design scheme, building carbon reduction technology, renewable energy utilization, green energy power equipment is analyzed and used to achieve the goal of green, low carbon and near zero energy consumption of substation. Furthermore, simulation models are established for lighting simulation, noise simulation and heat dissipation simulation to analyze and optimize the design scheme. Through the simulation results, the substation design scheme deficiencies in the environmental impact are intuitively shown to put forward reasonable optimization measures of the substation carbon emission index improvement. And with the calculation of carbon reduction economical index, result shows that the proposed design scheme is feasible for the establishment of 110kV indoor low-carbon substation.
{"title":"Research on Low-carbon Technology for 110kV Urban Indoor Substation","authors":"Mengwei Wang, Shijun Wang, Zilei Wang","doi":"10.1109/CEECT55960.2022.10030300","DOIUrl":"https://doi.org/10.1109/CEECT55960.2022.10030300","url":null,"abstract":"To further reduce the lifetime carbon emission index of substations, a design scheme of low-carbon 110kV indoor substation is proposed. In the proposed design scheme, building carbon reduction technology, renewable energy utilization, green energy power equipment is analyzed and used to achieve the goal of green, low carbon and near zero energy consumption of substation. Furthermore, simulation models are established for lighting simulation, noise simulation and heat dissipation simulation to analyze and optimize the design scheme. Through the simulation results, the substation design scheme deficiencies in the environmental impact are intuitively shown to put forward reasonable optimization measures of the substation carbon emission index improvement. And with the calculation of carbon reduction economical index, result shows that the proposed design scheme is feasible for the establishment of 110kV indoor low-carbon substation.","PeriodicalId":187017,"journal":{"name":"2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126480492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.1109/CEECT55960.2022.10030600
Dongliang Yang, Fulin Zhou, Jinfei Xiong
For the traditional double closed-loop control strategy of three-phase rectifier, the PI parameters are difficult to be adjusted, the adjustment parameters cannot be changed dynamically and the system response speed is slow, etc. A double closed-loop control strategy is proposed, in which the outer voltage loop is controlled by fuzzy pi, and the inner current loop is controlled by the sliding film;. The strategy adopts fuzzy PI control to adjust the PI parameters in real time for the voltage outer loop, and introduces inverse trigonometric function and adjustment coefficient in the switching function for the current inner loop. Finally, simulations are carried out to verify that the control strategy proposed in this paper has good robustness.
{"title":"Research on Improved Three-Phase PWM Rectifier Based on Sliding Mode Control","authors":"Dongliang Yang, Fulin Zhou, Jinfei Xiong","doi":"10.1109/CEECT55960.2022.10030600","DOIUrl":"https://doi.org/10.1109/CEECT55960.2022.10030600","url":null,"abstract":"For the traditional double closed-loop control strategy of three-phase rectifier, the PI parameters are difficult to be adjusted, the adjustment parameters cannot be changed dynamically and the system response speed is slow, etc. A double closed-loop control strategy is proposed, in which the outer voltage loop is controlled by fuzzy pi, and the inner current loop is controlled by the sliding film;. The strategy adopts fuzzy PI control to adjust the PI parameters in real time for the voltage outer loop, and introduces inverse trigonometric function and adjustment coefficient in the switching function for the current inner loop. Finally, simulations are carried out to verify that the control strategy proposed in this paper has good robustness.","PeriodicalId":187017,"journal":{"name":"2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122948546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.1109/CEECT55960.2022.10030630
Yibo Zhao
In this paper, the detection method of the new energy vehicle thermal management system test bench has been studied in depth, respectively for the refrigeration charging condition, the system refrigeration condition, the system heating condition, the system dehumidification condition and the system defrosting condition, set their respective parameter conditions, and developed a corresponding detection scheme. The test results show that the developed testing method can accurately measure the temperature, pressure and flow parameters at key positions. The independent repeated measurements on the testing machine are carried out. The results indicate that the experimental standard deviation of the cooling capacity is 12.72W.
{"title":"Detection Method of New Energy Vehicle Thermal Management System Test Bench","authors":"Yibo Zhao","doi":"10.1109/CEECT55960.2022.10030630","DOIUrl":"https://doi.org/10.1109/CEECT55960.2022.10030630","url":null,"abstract":"In this paper, the detection method of the new energy vehicle thermal management system test bench has been studied in depth, respectively for the refrigeration charging condition, the system refrigeration condition, the system heating condition, the system dehumidification condition and the system defrosting condition, set their respective parameter conditions, and developed a corresponding detection scheme. The test results show that the developed testing method can accurately measure the temperature, pressure and flow parameters at key positions. The independent repeated measurements on the testing machine are carried out. The results indicate that the experimental standard deviation of the cooling capacity is 12.72W.","PeriodicalId":187017,"journal":{"name":"2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122663607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.1109/CEECT55960.2022.10030380
Bingxu Du, Shiwei Ma, Hui Wu
A method based on Wavelet Packet Energy Spectrum was employed to estimate the location of damages in composites. Numerical simulations and experiment were presented to demonstrate the effectiveness of this method. The damage factor of the sensing channel between the current state and the reference state was obtained by wavelet packet energy spectrum. The probability value of each point in the detection region was calculated using the probabilistic imaging algorithm. The experimental outcomes identified that the error of single damage position is 1.73mm, and the maximum error of multi-damage position is 8.06mm.
{"title":"Locating and Imaging of Damages in Composites Based on Wavelet Packet Energy Spectrum of Lamb Wave","authors":"Bingxu Du, Shiwei Ma, Hui Wu","doi":"10.1109/CEECT55960.2022.10030380","DOIUrl":"https://doi.org/10.1109/CEECT55960.2022.10030380","url":null,"abstract":"A method based on Wavelet Packet Energy Spectrum was employed to estimate the location of damages in composites. Numerical simulations and experiment were presented to demonstrate the effectiveness of this method. The damage factor of the sensing channel between the current state and the reference state was obtained by wavelet packet energy spectrum. The probability value of each point in the detection region was calculated using the probabilistic imaging algorithm. The experimental outcomes identified that the error of single damage position is 1.73mm, and the maximum error of multi-damage position is 8.06mm.","PeriodicalId":187017,"journal":{"name":"2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123297084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.1109/CEECT55960.2022.10030644
Tao Wang, Gang Han, Defu Cai, Yu Wang, Wentao Huang, Kanjun Zhang, Ling Ruan
The synchronous condenser can provide rotating reactive power and improve voltage level effectively. This paper analyses the relationship between AC system voltage and commutation area of commutation failure at first, deduces the critical voltage of AC system corresponding to unsuccessful commutation of DC, calculates the critical voltage of typical engineering with three-phase fault for commutation failure. The computing platform of UHV power system with large capacity condenser and actual DC simulation model is established by taking an actual project as an example. The AC failure is calculated at a 1ms time interval, and the critical voltage corresponding to unsuccessful commutation failure is obtained. In the end, the theoretical results are compared with the critical voltage obtained by the simulation platform, and the theoretical and practical engineering results are mutually verified, which has a strong theoretical guiding significance for installing synchronous condenser to prevent the commutation failure in power grid planning, scheduling operation, structural optimization.
{"title":"The Enhancement Effect of Large Capacity Synchronous Condenser on Critical Voltage of AC System for Commutation Failure","authors":"Tao Wang, Gang Han, Defu Cai, Yu Wang, Wentao Huang, Kanjun Zhang, Ling Ruan","doi":"10.1109/CEECT55960.2022.10030644","DOIUrl":"https://doi.org/10.1109/CEECT55960.2022.10030644","url":null,"abstract":"The synchronous condenser can provide rotating reactive power and improve voltage level effectively. This paper analyses the relationship between AC system voltage and commutation area of commutation failure at first, deduces the critical voltage of AC system corresponding to unsuccessful commutation of DC, calculates the critical voltage of typical engineering with three-phase fault for commutation failure. The computing platform of UHV power system with large capacity condenser and actual DC simulation model is established by taking an actual project as an example. The AC failure is calculated at a 1ms time interval, and the critical voltage corresponding to unsuccessful commutation failure is obtained. In the end, the theoretical results are compared with the critical voltage obtained by the simulation platform, and the theoretical and practical engineering results are mutually verified, which has a strong theoretical guiding significance for installing synchronous condenser to prevent the commutation failure in power grid planning, scheduling operation, structural optimization.","PeriodicalId":187017,"journal":{"name":"2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115555146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The integrated energy system has obvious economic, energy-saving and environmental protection characteristics, and is one of the important ways to achieve the carbon peak and carbon neutral strategy. The operation mode of the integrated energy system is very flexible, and the system can obtain better operation performance through scheduling optimization. To fully improve the system performance, this paper proposes a two-stage integrated energy system intraday scheduling optimization method considering equipment nonlinearity. First, to minimize the operation cost and consider the linear characteristic constraints of equipment, a linear programming model for the optimal scheduling of the intraday economy is established. Then, based on the linear optimization results and considering the nonlinear characteristics of equipment, a nonlinear optimal scheduling model is established, and the nonlinear optimization method is used to further improve the optimization accuracy of the load setting values of each equipment. Simulation results show that, compared with linear scheduling optimization, the deviation between the scheduling results and the actual operation of the system is reduced after considering nonlinear optimization, thus improving the economy, energy conservation, and environmental protection of the system.
{"title":"Research on daily scheduling optimization of integrated energy system considering equipment nonlinearity","authors":"Chunlei Zhou, Haolan Yang, Dou Li, Chenchen Yang, Miao Pan, Huashuai Wei, Junli Zhang","doi":"10.1109/CEECT55960.2022.10030514","DOIUrl":"https://doi.org/10.1109/CEECT55960.2022.10030514","url":null,"abstract":"The integrated energy system has obvious economic, energy-saving and environmental protection characteristics, and is one of the important ways to achieve the carbon peak and carbon neutral strategy. The operation mode of the integrated energy system is very flexible, and the system can obtain better operation performance through scheduling optimization. To fully improve the system performance, this paper proposes a two-stage integrated energy system intraday scheduling optimization method considering equipment nonlinearity. First, to minimize the operation cost and consider the linear characteristic constraints of equipment, a linear programming model for the optimal scheduling of the intraday economy is established. Then, based on the linear optimization results and considering the nonlinear characteristics of equipment, a nonlinear optimal scheduling model is established, and the nonlinear optimization method is used to further improve the optimization accuracy of the load setting values of each equipment. Simulation results show that, compared with linear scheduling optimization, the deviation between the scheduling results and the actual operation of the system is reduced after considering nonlinear optimization, thus improving the economy, energy conservation, and environmental protection of the system.","PeriodicalId":187017,"journal":{"name":"2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115753128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As the popularity of distributed generators (DGs) increasing, existing distribution power network is becoming weaker and weaker. Therefore, a major change is threatening the voltage stability of distribution power network. And it can be alleviated by adding additional compensation devices. A series compensator is applied to improve the power transfer between a weak distribution power network, load and DGs by increasing the voltage stability of power network. A new droop control scheme based on virtual impedance is introduced to improve grid voltage stability. A low voltage power network model with SSSCs simulation study is performed in Plecs to assess the ability of the SSSC for its application in enhancement of grid voltage stability. The proposed droop control strategy is further validated on a hardware in the loop (Hil) test platform based on RT-Box.
{"title":"Voltage Regulation Method of Series Compensator Based on Impedance in Weak Distribution Network","authors":"Shuang Rong, Mingyu Xu, Xiaoguang Chen, Jiancheng Ma, Hao Li, Haoyu Li","doi":"10.1109/CEECT55960.2022.10030633","DOIUrl":"https://doi.org/10.1109/CEECT55960.2022.10030633","url":null,"abstract":"As the popularity of distributed generators (DGs) increasing, existing distribution power network is becoming weaker and weaker. Therefore, a major change is threatening the voltage stability of distribution power network. And it can be alleviated by adding additional compensation devices. A series compensator is applied to improve the power transfer between a weak distribution power network, load and DGs by increasing the voltage stability of power network. A new droop control scheme based on virtual impedance is introduced to improve grid voltage stability. A low voltage power network model with SSSCs simulation study is performed in Plecs to assess the ability of the SSSC for its application in enhancement of grid voltage stability. The proposed droop control strategy is further validated on a hardware in the loop (Hil) test platform based on RT-Box.","PeriodicalId":187017,"journal":{"name":"2022 4th International Conference on Electrical Engineering and Control Technologies (CEECT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115776727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：