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| 1 | Steady-state Voltage Reactive Compensation Method for Half-wavelength Transmission Lines Considering Equivalent Power Supply Impedance显示文摘Half-wavelength AC transmission(HWACT)refers to transmission along lines with an electrical distance of half the power frequency wavelength.The voltage amplitude at the sending terminal is equal to that at the receiving terminal in steady-state.Furthermore,the voltage at the receiving terminal does not vary with load.However,the electrical distance has been extended in actual HWACT lines because of the impact of the equivalent power supply impedance,so the attractive characteristics no longer hold.As a result,reactive power compensation methods with constant power factor and constant voltage are needed and these are presented in this paper.The steady-state operational characteristics,the calculation methods of additional reactive power compensation and the admittance of a controllable shunt reactor are also given.The methods proposed in this paper are relatively simple to implement,and the calculations involved are straightforward,resulting in effective voltage stabilization.The results indicate that such compensation methods can increase the transmission capacity while maintaining a relatively low voltage along the line. | Jun Yi Wei Hu Zijie Zhang Lu Qiu Ansi Wang Bowen Yan Canbing Li Quanyou Yue | 2020 | CSEE Journal of Power and Energy Systems2020,6,4: | 2 |
| 2 | Vulnerability as- sessment scheme for power system transmission networks based on the fault chain theory显示文摘 | Wang Ansi Luo Yi Tu Guangyu | 2011 | IEEE Trans on Power Systems2011,26,1: | 1 |
| 3 | Vulnerabilityassessment scheme for power system transmissionnetworks based on the fault chain theory 显示文摘 | Wang Ansi Luo Yi Tu Guang-yu | 2011 | IEEE Transon Power Systems2011,26,1: | 1 |
| 4 | Vulnerability assessment scheme for power system transmission networks based on the fault chain theory显示文摘 | Wang Ansi Luo Yi Liu Pei | 2011 | IEEE Transactions on Power Systems2011,26,1: | 1 |
| 5 | Vulnerability assessment scheme for power system transmission networks based on the fault chain theory 显示文摘 | Wang Ansi Luo Yi Tu Guangyu | 2011 | IEEE Transactions on Power Systems2011,26,1: | 1 |
| 6 | Quantitative evaluation of human-reliability based on fuzzy-clonal selection显示文摘 | Wang Ansi Luo Yi Tu Guangyu | 2011 | IEEE Transactions on Reliability2011,60,3: | 1 |
| 7 | Quantitative evaluation of human-reliability based on fuzzy-clonal selection显示文摘 | Wang Ansi Luo Yi Tu Guangyu | 2011 | IEEE Transactions on Reliability2011,60,3: | 1 |
| 8 | Vulnerability Assessment Scheme for Power System Transmission Networks Based on the Fault Chain The ory显示文摘 | Ansi Wang Yi Luo Guangyu Tu Pei Liu | | 0,,01: | 1 |
| 9 | Different levels of facial expression recognition in patients with firstepisode schizophrenia:A functional MRI study显示文摘Background The impairment of facial expression recognition has become a biomarker for early identification of first-episode schizophrenia, and this kind of research is increasing.Aims To explore the differences in brain area activation using different degrees of disgusted facial expression recognition in antipsychotic-na?ve patients with firstepisode schizophrenia and healthy controls.Methods In this study, facial expression recognition tests were performed on 30 first-episode, antipsychoticna?ve patients with schizophrenia(treatment group) and 30 healthy subjects(control group) with matched age, educational attainment and gender. Functional MRI was used for comparing the differences of the brain areas of activation between the two groups.Results The average response time difference between the patient group and the control group in the ‘high degree of disgust' facial expression recognition task was statistically significant(1.359(0.408)/2.193(0.625), F=26.65, p<0.001), and the correct recognition rate of the treatment group was lower than that of the control group(41.05(22.25)/59.84(13.91, F=19.81, p<0.001). Compared with the control group, the left thalamus, right lingual gyrus and right middle temporal gyrus were negatively activated in the patients with first-episode schizophrenia in the ‘high degree of disgust' emotion recognition, and there was a significant activation in the left and right middle temporal gyrus and the right caudate nucleus. However, there was no significant activation difference in the ‘low degree of disgust' recognition.Conclusions In patients with first-episode schizophrenia, the areas of facial recognition impairment are significantly different in different degrees of disgust facial expression recognition. | Chengqing Yang Ansi Qi Huangfang Yu Xiaofeng Guan Jijun Wang Na Liu Tianhong Zhang Hui Li Hui Zhou Junjuan Zhu Nan Huang Yingying Tang Zheng Lu | 2018 | General Psychiatry2018,31,5: | 0 |