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Zhisong WANG 경성대학교 한국한자연구소 2016 한자연구 Vol.0 No.14
Fall of Vietnam is a Chinese work published in 1905 by Phan Bội Châu, the pioneer of morden enlightenment in Vietnam, which has been widely spread and has great impact in East Asia n the early twentieth century. However, the author has been considered Liang Qichao for a long time. The real author, Phan Bội Châu, has been confirmed till 1990s. This paper is to discuss why the author would be mistaken from the perspective of communication, and its meaning while being spread in China and so on. This paper suggests that this work has not ever been published separately, but always with The history of national subjugation in Vietnam Prequel and Brief Introduction of Vietnam by Liang Qichao. This unique publishing form is an important reason why the author has been mistaken for Liang Qichao, but as a result, also beneficial to spread. This work was written under the influence of Liang Qichao, which has in common with the political view of following the western example of social reconstruction, but retains the traditional moral principles when explaining the reason of the country’s destruction. There are overlap and difference in these three texts, which constitute a large text with Fall of Vietnam as core, played a unique role in the enlightenment in modern China.
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Optical Properties of Tm-Er Codoped Aluminate Glasses
Zhisong Xiao,Lu Yan,Bo Zhou,Fang Zhu,Anping Huang,Jinliang Wang,Yongchang Zhu 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.-
Transparent CaO-Al₂O₃-B₂O₃ glasses codoped with Tm³+ and Er³+ were prepared by melt quenching and subsequent heating. Optical absorption spectra revealed an ultraviolet to visible absorption band corresponding to a relative electronic transition of Tm3+ and Er³+. For Tm-only doped glasses, the 791-nm absorption line is prominent and also has comparable strength in Tm-Er codoped glasses. Both 405-nm and 791-nm wavelengths have been used as excitation sources to comparatively study the photoluminescence characteristics of Tm3+ and Er3+. Only Er3+ emission at 1528 nm has been observed under a pumping wavelength of 405 nm. However, both Tm3+ and Er³+ emission can be found with an excitation wavelength of 791 nm. It implies that 791 nm should be very effective for pumping Tm-Er codoped aluminate glass for application in broadband optical waveguide amplifiers. Transparent CaO-Al₂O₃-B₂O₃ glasses codoped with Tm³+ and Er³+ were prepared by melt quenching and subsequent heating. Optical absorption spectra revealed an ultraviolet to visible absorption band corresponding to a relative electronic transition of Tm3+ and Er³+. For Tm-only doped glasses, the 791-nm absorption line is prominent and also has comparable strength in Tm-Er codoped glasses. Both 405-nm and 791-nm wavelengths have been used as excitation sources to comparatively study the photoluminescence characteristics of Tm3+ and Er3+. Only Er3+ emission at 1528 nm has been observed under a pumping wavelength of 405 nm. However, both Tm3+ and Er³+ emission can be found with an excitation wavelength of 791 nm. It implies that 791 nm should be very effective for pumping Tm-Er codoped aluminate glass for application in broadband optical waveguide amplifiers.
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Zhiyuan Fang,Zhisong Wang,Zhengliang Li 한국풍공학회 2020 Wind and Structures, An International Journal (WAS Vol.30 No.3
Gusts generated by downburst have caused a great variety of structural damages in many regions around the world. It is of great significance to accurately evaluate the downburst-induced wind load on high-rise building for the wind resistance design. The main objective of this paper is to propose a computational modeling approach which can satisfactorily predict the mean and fluctuating wind pressure coefficients induced by downburst on high-rise building surfaces. In this study, using an impinging jet to simulate downburst-like wind, and simultaneous pressure measurements are obtained on a high-rise building model at different radial locations. The model test data are used as the database for developing back propagation neural network (BPNN) models. Comparisons between the BPNN prediction results and those from impinging jet test demonstrate that the BPNN-based method can satisfactorily and efficiently predict the downburst-induced wind pressure coefficients on single and overall surfaces of high-rise building at various radial locations.
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Application of cost-sensitive LSTM in water level prediction for nuclear reactor pressurizer
Zhang Jin,Wang Xiaolong,Zhao Cheng,Bai Wei,Shen Jun,Li Yang,Pan Zhisong,Duan Yexin 한국원자력학회 2020 Nuclear Engineering and Technology Vol.52 No.7
Applying an accurate parametric prediction model to identify abnormal or false pressurizer water levels (PWLs) is critical to the safe operation of marine pressurized water reactors (PWRs). Recently, deeplearning-based models have proved to be a powerful feature extractor to perform high-accuracy prediction. However, the effectiveness of models still suffers from two issues in PWL prediction: the correlations shifting over time between PWL and other feature parameters, and the example imbalance between fluctuation examples (minority) and stable examples (majority). To address these problems, we propose a cost-sensitive mechanism to facilitate the model to learn the feature representation of later examples and fluctuation examples. By weighting the standard mean square error loss with a costsensitive factor, we develop a Cost-Sensitive Long Short-Term Memory (CSLSTM) model to predict the PWL of PWRs. The overall performance of the CSLSTM is assessed by a variety of evaluation metrics with the experimental data collected from a marine PWR simulator. The comparisons with the Long ShortTerm Memory (LSTM) model and the Support Vector Regression (SVR) model demonstrate the effectiveness of the CSLSTM
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Xi Tu,Ye Wu,Zhengliang Li,Zhisong Wang 국제구조공학회 2021 Structural Engineering and Mechanics, An Int'l Jou Vol.78 No.1
Long span cross-rope suspension structure is an innovative structural system evolved from typical Cross-Rope Suspension (CRS) guyed tower, a type of supporting system with short span suspension cable supporting overhead power transmission lines. In mountainous areas, the span length of suspension cable was designed to be extended to hundreds or over one thousand meters, which is applicable for crossing deep valleys. Vortex Induced Vibration (VIV) of overhead power transmission lines was considered to be one of the major factors of its fatigue and service life. In this paper, VIV and its controlling by Stockbridge damper for long span CRS was discussed. Firstly, energy balance method and finite element method for assessing VIV of CRS were presented. An approach of establishing FE model of long span CRS structure with dampers was introduced. The effect of Stockbridge damper for overall vibration of CRS was compared in both theoretical and numerical approaches. Results indicated that vibration characteristics of conductor in long span CRS compared with traditional tower-line system. Secondly, analysis on long span CRS including Stockbridge damper showed additional dampers installed were essential for controlling maximum dynamic bending stresses of conductors at both ends. Moreover, factors, including configuration and mass of Stockbridge damper, span length of suspension cable and conductor and number of spans of conductor, were assessed for further discussion on VIV controlling of long span CRS.
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