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Evaluation of Antioxidative Effects of Lactobacillus plantarum with Fuzzy Synthetic Models
( Jichun Zhao ),( Fengwei Tian ),( Shuang Yan ),( Qixiao Zhai ),( Hao Zhang ),( Wei Chen ) 한국미생물생명공학회(구 한국산업미생물학회) 2018 Journal of microbiology and biotechnology Vol.28 No.7
Numerous studies suggest that the effects of lactic acid bacteria (LAB) on oxidative stress in vivo are correlated with their antioxidative activities in vitro; however, the relationship is still unclear and contradictory. The antioxidative activities of 27 Lactobacillus plantarum strains isolated from fermented foods were determined in terms of 2,2-diphenyl-1-picrylhydrazyl, hydroxyl radical, and superoxide radical scavenging abilities, reducing activity, resistance to hydrogen peroxide, and ferrous chelating ability in vitro. Two fuzzy synthetic evaluation models, one with an analytic hierarchy process and one using entropy weight, were then used to evaluate the overall antioxidative abilities of these L. plantarum strains. Although there was some difference between the two models, the highest scoring strain (CCFM10), the middle scoring strain (CCFM242), and the lowest scoring strain (RS15-3) were obtained with both models. Examination of the antioxidative abilities of these three strains in D-galactose-induced oxidative stress mice demonstrated that their overall antioxidative abilities in vitro could reveal the abilities to alleviate oxidative stress in vivo. The current study suggests that assessment of overall antioxidative abilities with fuzzy synthetic models can guide the evaluation of probiotic antioxidants. It might be a more quick and effective method to evaluate the overall antioxidative abilities of LAB.
Jichun Xing,Longwei Zhao,Chonglin Liu 대한기계학회 2018 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.32 No.4
For a non-contact piezoelectric driving system modulated by electromagnetic field, the dynamic equations of the driving system under coupling excitation are deduced. Using the Duhamel’s integral, forced response of displacement in the time-domain and frequencydomain were investigated, and the influence of some system parameters on the displacement response is analyzed. The results show that in the same excitation frequency, the displacement responses of the driving beams is the most significant, and the vibration response of the central shaft is relatively less obvious. The larger displacement responses of the driving beam end is beneficial to increasing the step angle of the driving system, and the smaller vibration of the central is beneficial to stable torque output of drive system. Therefore, the design of this structure is more reasonable. The results are useful for design of the operating performance of the driving system.
장길춘(Zhang Jichun),범국신(Fan Guoxin),주옥영(Zhu Yuying),서균봉(Xu Junfeng),문필은(Wen Biyin) 한국항만경제학회 1994 韓國港灣經濟學會誌 Vol.10 No.-
With research and investigation, the article illuminates the effect on the port environment resulting from the life sewage, oil sewage, gas. noise. and oil fog displaced by vessels, and further puts forward approriate strategies and measures to protect the port environment.
Dynamic optimization of an electromechanical integrated harmonic piezoelectric motor
Chonglin Liu,Jichun Xing 대한기계학회 2018 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.32 No.6
The coupled dynamic equations for an electromechanical integrated harmonic piezoelectric motor are proposed in this study. The vibration responses of the proposed motor are then determined using these equations. The mathematical models of dynamic optimization are established using the multi-objective optimization method. The optimal parameters are obtained through optimization. The vibration displacements are compared with the initial values. The effects of the parameters on the optimized amplitudes are also investigated. Results show that the vibration displacements of the piezoelectric motor decrease by over 89 % after dynamic optimization. These results can be used to improve the performance and decrease the vibration of the piezoelectric motor.
Forced response of the inertial piezoelectric rotary motor to electric excitation
Lizhong Xu,Jichun Xing 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.11
For a novel inertial piezoelectric rotary motor, the equation of the voltage response on the piezo-ceramic bimorph under the excitationsignals is deduced and the dynamic equation of the motor rotor is given. Using the equations, the voltage responses on the piezo-ceramicbimorph and the responses of the displacement, velocity and acceleration on the rotor to the sawtooth voltage excitation are investigated. The results show that when the frequency of the excitation signal is quite low, the waveform of the displacement response of the rotor isidentical to one of the excitation signal; the outer diameter of the rotor, its length and thickness, etc., have obvious effects on the inertialmoment applied to the rotor. The results are useful for design and control of the operating performance of the motor.
Feng ZhenLiang,Cheng JiChun 세명대학교 인문사회과학연구소 2019 人文 社會科學硏究 Vol.27 No.1
Began in period of Spring and Autumn, the Worship Confucius system formed in the Han Dynasty in state . It was expanded in the Wei and Jin Dynasty , culminated in the Sui and Tang Dynasties . And change from Song Dynasty to Ming dynasty and continue to the Qing dynasty, about two thousand years ago. Worship Confucius is one of the important tradition to express respect for Confucius and after emperor LiuChe of the Han dynasty listed Confucian culture as the ruling ideology, it was of great political significance to sacrifice Confucius. At the beginning of the Qing dynasty,emperor of Qing adopted the policy of respecting and valuing Confucianism.At this time, the system of sacrificing Confucius is completely consistent with the Ming Dynasty.In a prosperous time,Qing emperors formulated their own systems and laws by referring to the relevant systems and laws of the Ming Dynasty and combining with the actual situation of their own nation——Emperor Kangxi imitated the system of Han Dynasty to visit Qufu.He used courtiers' etiquette to worship Confucius that prostrating oneself three times and kowtowing nine times. He created a system of worshipping Confucius during the Empire's East Visit, which was the beginning of all change. In the Yongzheng Era,the worship of Confucius was fully upgraded. First, the emperor personally offered sacrifices to Confucius and established the system of the emperor himself to sacrifice. He later changed “xingxue” to “yixue”, conferred the title of king to Confucius' ancestor and established a system of "zhaijie" in birthday of Confucius and a system for avoiding the use of Confucius' names in daily use. Emperor Qianlong imitated his grandfather. He visited the Qufu eight times and offered sacrifices to Confucius. When he visited Rehe and other places, he also went to the local Confucian temple to worship Confucius. At same time, he builded a system of the emperor himself went to the school to lecture. In addition, he imitated the ancient system and established the Piyong temple . In the Qianlong Era, a new ritual of worshipping Confucius in Qing Dynasty was formed, which was different from that of the previous dynasties. Through the study of the change of the system, we find that power and belief in this common play in the works. On the one hand, the Qing government must actively use Confucian “Dao Tong” to maintain “Zhi Tong”based on political needs. On the other hand, the power of faith of Confucian “Dao Tong” is also playing a role at all times, thus making these "foreign" rulers gradually form a high degree of cultural identity. Key Words: Rituals of sacrificing Confucius The Rituals of The Sacrifice of Confucius in the Qing Dynasty Power and Belief Cultural Identity in the Qing Dynasty