中国琼剧艺术发展的若干思考

Zheng Hong 동방문화대학원대학교 문화예술콘텐츠연구소 2020 문화와예술연구 Vol.16 No.-

경극(琼剧)은 기세차고 폭넓은 중국 전통문화의 배경하에 해 남에 전해진 중국 희곡의 여러 연극 종류가 충돌되면서 교류하 고 융합되고, 특히 월극(粤剧) 및 영남의 민속풍습과 융합된 후 지역의 민간소조(小调), 가무팔음(歌舞八音), 도운악곡(道坛乐 曲) 등 해남의 해남 문화요소를 흡수하였다. 이를 기반으로 하 여 경제 문화 융합의 배경하에 지역 방언을 위주로 하고 지속 적인 발전을 거쳐 최종적으로 우세 보완과 상부상조를 구현하 여 점차적으로 형성된 일종의 지역문화가 농후하고 지역적 특 색이 있는 해남도 본토 출신의 새로운 연극 종류이며, 중국 희 곡 백화원에 활짝 핀 하나의 기이한 꽃이다. 경극은 본토 대중들로부터 사랑을 받고 해남 지역에서 널리 유전되며 대중들이 즐겨 듣고 일상생활을 풍부하게 하며 영적 수요를 충족시키는 중요한 문화 형식이다. 오늘에까지 발전해 오면서 중국 해남도의 유일무이한 음악형식이 되었으며 해남음 악문화의 한 부호이다. 본 논문은 주로 경극의 무대공연형식 및 그 예술에 대해 자 세히 탐구하고자 한다. Qiongju is a wonderful type of Hainan local drama featured by local dialect and culture, blossoming in the area of Chinese opera under the broad background of Chinese traditional culture. After the collision, exchange and fusion of various kinds of Chinese operas introduced into Hainan, especially Cantonese opera and Lingnan folk customs, it has absorbed the local folk tunes, “Bayin”song and dance, Taoist music and other Hainan cultural elements. Qiong Opera is popular with local people and widely spread in Hainan area. It is an important cultural form for the public to enjoy and enrich their daily life and meet their spiritual needs. So far it has developed into a unique form of music in Hainan Island, China, and it is a symbol of Hainan music culture. This paper mainly discusses the stage performance form and its art in detail.

An analysis of the history and current situation of the integration of Chinese and Korean music

( Zheng Hong ) 인문사회과학예술융합학회 2020 인문사회과학예술융합학회지 Vol.4 No.1

Since ancient times, China and South Korea have been deeply connected in politics, geography, culture, history and economy. Since the Han dynasty, the Korean peninsula was deeply influenced by Chinese culture in terms of ritual system, politics, economy, art and customs. Although there are intertwined musical elements in Chinese and Korean music, there are also many differences due to geographical, lifestyle, customs and other reasons, which forms different musical cultural systems with distinct national characteristics. After the division of North and South Korea, South Korea was greatly influenced by the western countries, and naturally formed a music style totally different from the traditional Confucian culture in terms of the development of music culture. Since the establishment of diplomatic ties between China and the South Korea in 1992, cultural communications and cooperation have become increasingly active, and the interaction and integration of music have been continuously expanded. Chinese music is also increasingly popular with South Koreans, but the breadth and depth remains to be improved. By studying the history and current situation of Chinese-Korean music integration, this paper finds that Chinese and Korean music in history interacted and integrated with Musical Instruments, instrumental music, music types, music theories and other aspects, which continuously promoted the innovation and development of their respective music art. In modern times, Korean music industrialization development model is mature, the smell of music is very sensitive, which can quickly capture the young people's preference. And through creating singing and dancing combination and other forms to integrate the idol and music, using the power of the idol to promote the development of music, music culture output also showed a more active attitude, set off a wave of Korean music in China, the development of China's music industry has had an important impact. Chinese music education should actively learn from the experience of Korean music development, combine the current situation and characteristics of Chinese music, take an open attitude, focus on innovation and exploration, develop closely with the modern market, achieve the goal of sound interaction between music education and music industry, and promote the diversified development of Chinese music.

Improved Mutual MRAS Speed Identification Based on Back-EMF

Zheng, Hong,Zhao, Jiancheng,Liu, Liangzhong The Korean Institute of Electrical Engineers 2016 Journal of Electrical Engineering & Technology Vol.11 No.3

In the design of sensorless control system for induction motor, high-precision speed estimation is one of the most difficult problems. To solve this problem, the common method is model reference adaptive method (MRAS). MRAS requires accurate motor parameters to estimate rotor speed precisely. However, when motor is running, the variety of temperature and magnetic saturation will lead to the change of motor parameters such as stator resistance and rotor resistance, which will lower the accuracy of the speed estimation. To improve the accuracy and rapidity of speed estimation, this paper analyses the mutual MRAS speed identification based on rotor flux linkage, and proposes an improved mutual MRAS speed identification based on back-EMF. The improved method is verified by Simulink simulation and motor experimental platform based on DSP2812. The results of simulation and experiment indicate that the method proposed by this paper can significantly improve the accuracy of speed identification, and speed up the response of identification.

Combining a HMM with a Genetic Algorithm for the Fault Diagnosis of Photovoltaic Inverters

Zheng, Hong,Wang, Ruoyin,Xu, Wencheng,Wang, Yifan,Zhu, Wen The Korean Institute of Power Electronics 2017 JOURNAL OF POWER ELECTRONICS Vol.17 No.4

The traditional fault diagnosis method for photovoltaic (PV) inverters has a difficult time meeting the requirements of the current complex systems. Its main weakness lies in the study of nonlinear systems. In addition, its diagnosis time is long and its accuracy is low. To solve these problems, a hidden Markov model (HMM) is used that has unique advantages in terms of its training model and its recognition for diagnosing faults. However, the initial value of the HMM has a great influence on the model, and it is possible to achieve a local minimum in the training process. Therefore, a genetic algorithm is used to optimize the initial value and to achieve global optimization. In this paper, the HMM is combined with a genetic algorithm (GHMM) for PV inverter fault diagnosis. First Matlab is used to implement the genetic algorithm and to determine the optimal HMM initial value. Then a Baum-Welch algorithm is used for iterative training. Finally, a Viterbi algorithm is used for fault identification. Experimental results show that the correct PV inverter fault recognition rate by the HMM is about 10% higher than that of traditional methods. Using the GHMM, the correct recognition rate is further increased by approximately 13%, and the diagnosis time is greatly reduced. Therefore, the GHMM is faster and more accurate in diagnosing PV inverter faults.

Optimization of Parameters for LCL Filter of Least Square Method Based Three-phase PWM Converter

Zheng, Hong,Liang, Zheng-feng,Li, Meng-shu,Li, Kai The Korean Institute of Electrical Engineers 2015 Journal of Electrical Engineering & Technology Vol.10 No.4

LCL filters are widely used in three-phase PWM converter for its advantages of small volume, low cost and inhibition of high frequency current harmonic. However, it is difficult to optimize its design because its parameters are mutually influenced while the value of each parameter for LCL filter has impacts on the converter's cost and size. In this paper, the target of optimization is to minimize the parameter values of LCL filter, and an optimization method for parameters of LCL filter of three-phase PWM converter based on least square method is proposed. With this method, a quantitative calculation of the harmonic component of the converter’s side phase voltage is performed first, and then the quantitative relationship between phase voltage harmonics and grid phase current harmonics is analyzed. After that, the attenuation requirement of each harmonic is obtained by taking into account the requirements for each harmonic component of grid current. Then according to the optimization objective, the objective function with minimum harmonic attenuation deviation is established, and least squares method is adopted for three-dimensional global searching of parameters for LCL filter. Thus, the designed harmonic attenuation curve approximates the minimum attenuation requirements, and the optimized LCL filter parameters are obtained. Finally, the effectiveness of the method is verified by the experiments.

Three Dimensional Simulation of Viscoelastic Polymer Melts Flow in a Cast Film Process

Zheng, Hong,Yu, Wei,Zhou, Chixing,Zhang, Hongbin The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.1

Three-dimensional simulation of the cast film process for viscoelastic polymer materials was carried out using the finite element method. The flow between the extrusion die and chill roll was assumed to be steady-state and isothermal and the rheological property of material was characterized by a single-mode PTT model. Gravity and inertial flow were considered in the simulation work, but neglecting die swell at the die exit, surface tension, crystallization, transient disturbance and film sag. Simulation results of the cast film production line were compared with the experimental data on the velocity profiles and neck-in values. Neck-in and edge bead was well predicted and the influence of strain-hardening nature, elasticity of materials and operation conditions on the final film shape was also investigated. It was found that the effect of strain-hardening nature was masked for the material with a very low relaxation time when the single-mode PTT model was adopted. Greater elasticity helped to produce a film with smaller neck-in and less waste edge. When the air gap length was increased, it was predicted that neck-in phenomenon would be promoted as well. Moreover, it was found that ratio of neck-in values under different air gap lengths was approximately equal to that of air gap lengths, which was consistent with experimental evidence.

Backstepping Sliding Mode Control Based on Extended State Observer for Robotic Manipulators with LuGre Friction

Zhenghong Xu,Xiaohui Yang,Wenjie Zhang,Wei Zhang,Liufang Zhang,Peter Xiaoping Liu 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.6

In this paper, we propose a backstepping integral nonsingular fast terminal sliding mode control approach based on an extended state observer to the trajectory tracking control of robotic manipulators with LuGre friction. In order to improve convergence speed and tracking precision, an integral fast terminal sliding surface is introduced. An appropriate saturation function is designed in the control input to avoid singularity. An extended state observer is employed to estimate the uncertainties and disturbances, and they are compensated by the control laws, for which the chattering can be effectively eliminated. The backstepping method is used to design the control input of the system to ensure the globally asymptotic stability based on the Lyapunov criterion. In comparison with other control methods, simulation results show effectiveness and superiority of this proposed control scheme.

Visual Monitoring Method on Fresh Concrete Vibration

Zhenghong Tian,Ce Bian 대한토목학회 2014 KSCE JOURNAL OF CIVIL ENGINEERING Vol.18 No.2

An integrated visual monitoring system to determine trajectory and duration on each vibrating motion of vibrator during concreteplaced on construction site was introduced, which could graphically display vibrating status of fresh concrete. Defects on concreteplacing process such as missed vibration, insufficient vibration, or excess vibration could be quantifiably assessed, and therefore,precise and suitable remedy could be offered timely. The system consisted of four functional parts, namely, vibrating trajectoryspatial coordinate collected subsystem, vibrating duration-collected subsystem, data process subsystem, and real-time display andassesses subsystem of vibrating status. The principle of operation was explained in this article. Firstly, accurate signals combinedspatial coordinates were achieved by dual-satellite systems, e.g., GPS (Global Position System) and GLONASS (Global NavigationSatellite System), with RTK (Real Time Kinematics) mode and, duration of each vibration from start to end was determined byelectrode device, respectively. Secondly, the wireless signals were sent to the terminal computer via MCC (Mono-Chip Computer)integrated. Finally, the worked status of vibrator on terminal was displayed simultaneously supported by assessment programm oncompacting concrete. Tests results from outdoor and application in-situ proved that the system could monitor the vibration process inreal-time reliably and quantifiably while fresh concrete was placed, and an innovative informationaized method might be realized.

Identification and Characterization of a New Alkaline Thermolysin-Like Protease, BtsTLP1, from Bacillus thuringiensis Serovar Sichuansis Strain MC28

( Zhenghong Zhang ),( Helong Hao ),( Zhongmei Tang ),( Zhengzheng Zou ),( Keya Zhang ),( Zhiyong Xie ),( Lilia Babe,),Frits Goedegebuur,Xiaogang Gu 한국미생물생명공학회(구 한국산업미생물학회) 2015 Journal of microbiology and biotechnology Vol.25 No.8

Thermolysin and its homologs are a group of metalloproteases that have been widely used in both therapeutic and biotechnological applications. We here report the identification and characterization of a novel thermolysin-like protease, BtsTLP1, from insect pathogen Bacillus thuringiensis serovar Sichuansis strain MC28. BtsTLP1 is extracellularly produced in Bacillus subtilis, and the active protein was purified via successive chromatographic steps. The mature form of BtsTLP1 has a molecule mass of 35.6 kDa as determined by mass spectrometry analyses. The biochemical characterization indicates that BtsTLP1 has an apparent Km value of 1.57 mg/ml for azocasein and is active between 20oC and 80oC. Unlike other reported neutral gram-positive thermolysin homologs with optimal pH around 7, BtsTLP1 exhibits an alkaline pH optimum around 10. The activity of BtsTLP1 is strongly inhibited by EDTA and a group of specific divalent ions, with Zn2+ and Cu2+ showing particular effects in promoting the enzyme autolysis. Furthermore, our data also indicate that BtsTLP1 has potential in cleaning applications.

Extended State Observer Based Adaptive Backstepping Nonsingular Fast Terminal Sliding-mode Control for Robotic Manipulators with Uncertainties

Zhenghong Xu,Xiaohui Yang,Wenjie Zhang,Wei Zhang,Shuang Yang,Siyi Zhou,Peter Xiaoping Liu 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.9

This paper proposes a novel robust finite-time tracking control scheme for robotic manipulators with uncertainties and external disturbances. In order to reduce the chattering phenomenon and enhance the robustness of the system, we design a novel extended state observer with filter function for estimating the lumped term of system uncertainties and external disturbances. We adopt the backstepping mechanism to design an adaptive backstepping nonsingular fast terminal sliding mode controller, achieve finite time convergence of the tracking errors while avoiding the singularity problem. An adaptive update law is designed for the switching gain, which further weakens the chattering problem. The finite-time convergence of tracking errors and the stability of the closed-loop system are ensured by the Lyapunov criterion. In comparison with other control methods, numerical simulation on a two-link rigid robot manipulator demonstrates the effectiveness and superiority of the proposed method.