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      • Exploring the Significance and Interpretation of Animal Motifs in Rock Art: A Systematic Review

        Tie Zhao(Tie Zhao),Daorina(Daorina ),Guofeng Chen(Guofeng Chen),M. Omer(M. Omer ) 아시아사회과학학회 2023 Jornal of Asia Social Science Vol.10 No.1

        Rock art has been a subject of fascination for scholars, archaeologists, and enthusiasts for centuries due to its unique aesthetic qualities and cultural significance. This systematic review paper provides an overview of the significance of rock art motifs and their interpretations. Through a comprehensive analysis of the literature, we identified common rock art motifs and themes, as well as various interpretative approaches and theoretical frameworks used to understand the meanings and contexts of these motifs. The review also explores variations in interpretations across time and space and discusses the implications of these findings for rock art studies. The results reveal that rock art motifs and their interpretations are shaped by diverse cultural, social, and historical contexts, and that interdisciplinary and community-engaged research is needed to better understand, preserve, and appreciate this unique cultural heritage. The limitations and recommendations for future research are also discussed. This review contributes to our understanding of the cultural, symbolic, and aesthetic significance of rock art and highlights the importance of interdisciplinary perspectives and engagement with local communities in the study and conservation of rock art sites and cultural heritage.

      • KCI등재

        Partial oxidation reforming of biomass fuel gas over nickel-based monolithic catalyst with naphthalene as model compound

        Tie Jun Wang,Chen Guang Wang,Tie Jun Wang,Yan Gao,Chuang Zhi Wu,Long Long Ma 한국화학공학회 2008 Korean Journal of Chemical Engineering Vol.25 No.4

        With naphthalene as biomass tar model compound, partial oxidation reforming (with addition of O2) and dry reforming of biomass fuel gas were investigated over nickel-based monoliths at the same conditions. The results showed that both processes had excellent performance in upgrading biomass raw fuel gas. Above 99% of naphthalene was converted into synthesis gases (H2+CO). About 2.8 wt% of coke deposition was detected on the catalyst surface for dry reforming process at 750 oC during 108 h lifetime test. However, no coke deposition was detected for partial oxidation reforming process, which indicated that addition of O2 can effectively prohibit the coke formation. O2 can also increase the CH4 conversion and H2/CO ratio of the producer gas. The average conversion of CH4 in dry and partial oxidation reforming process was 92% and 95%, respectively. The average H2/CO ratio increased from 0.95 to 1.1 with the addition of O2, which was suitable to be used as synthesis gas for dimethyl ether (DME) synthesis.

      • KCI등재후보

        Educational Methods(아랍어 논문)

        Salim Idan Al-Tie 한국외국어대학교(글로벌캠퍼스) 중동연구소 2006 중동연구 Vol.24 No.2

        <Abstract> Educational Methods Salim Idan Al-Tie HUFS Educational methods are becoming very important in the development and advancement era. They are aids for the professors and teachers throughout his educational journey as they make the students happy and more opened and willing to study without boredom. That is why professors and teachers should be keen to provide all the essential educational methods and it is not necessary to be expensive, but rather they can use environmental materials in order to enrich these methods and present them in a special and attractive way, but this doesn't mean that neglecting the technological side while we are in the development era. The professors and teachers should use these methods in their classes and teach their students how to use and deal with them as modernized methods. These professors should deal and present these modernized and renewable and not to just stick to one traditional method in presenting his educational methods but he should always work on improving them. This research came to the following important conclusions: 1- Increasing the efforts concerning how to work with the modern educational methods. 2- Having training courses and workshops for the professors and teachers in order to be always updated on the modern and new educational methods. 3- Effectively applying the educational system using computers in the universities and schools. 4- Applying the Internet in universities and schools in order to facilitate the educational system among students. Finally, I hope that this research has gained the approval of the professors and teachers. Key word: Educational method, educational system, Internet, Application of Modern Technology

      • KCI등재

        Experimental Research on Seismic Behavior of +-shaped Columns Reinforced with High-strength Steel Bars under Cyclic Loading

        Tie-cheng Wang,Xiao Liu,Hai-long Zhao 대한토목학회 2015 KSCE JOURNAL OF CIVIL ENGINEERING Vol.19 No.4

        500MPa steel bar is a new type of high-strength reinforcing bar applied in China. To investigate the feasibility of using this type of reinforcement in specially shaped column structure, six +-shaped column specimens varying in axial compression ratio and stirrup spacing were tested under cyclic loading. Behaviors in failure mode, shear crack width, bearing capacity, displacement ductility and energy dissipating capacity are studied to evaluate the seismic resistance performance of the columns. Test results show that 500 MPa steel bars can be effectively used as longitudinal reinforcement and provide more significant confinement to core concrete as transverse reinforcement. It is demonstrated by the observed results that expected oversize flexure-shear crack width can be prevented through an appropriate design procedure following the current building codes in China. Reducing stirrup spacing provides better performance in member ductility, crack behavior, cumulative damage and energy dissipation capacity, but has little influence on the bearing capacity; high axial load can offer advantages in bearing capacity, energy dissipating capacity and shear crack behavior, but reduce the member ductility. To predict the behavior of test specimens under cyclic loading, analytical model are implemented in program OpenSees using flexural fiber beam-column element with the consideration of the shear effect. Analytical results have an acceptable agreement with the test results.

      • KCI등재

        Research on flexible dynamics of a 6-DOF industrial robot and residual vibration control with a pre-adaptive input shaper

        Tie Zhang,Kangyu Lin,Aimin Zhang 대한기계학회 2019 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.33 No.4

        The residual vibration caused by joint flexibility tends to be nonlinear and time-varying due to the complicated dynamics characteristics of 6-DOF industrial robot. To address the time-varying residual vibration problem, this paper proposes a pre-adaptive input shaping method. By simplifying the 6-DOF industrial robot standard flexible dynamics equation, the flexible dynamical parameters can be identified without additional joint encoders or other measuring instrument, while the natural frequency of each joint can also be calculated from the identified dynamical parameters. Then by setting the calculated natural frequency as the initial condition, an iterative learning scheme based on the secant method can be applied to obtain a better natural frequency estimate. Finally, using the iteration results, the input shaper’s parameters can be updated, which makes the shaper adapt to the variation of system parameters. The results of model validation show that the simplified dynamic model can reflect the robot dynamic characteristics accurately. The vibration experimental results demonstrate the effectiveness of the proposed pre-adaptive input shaper in suppressing the residual vibration.

      • KCI등재

        論文 : 『針灸甲乙經 』的刺法特征分析

        ( Tie Ming Ma ),( Hyo Chul Kim ) 대한한의학원전학회(구 대한원전의사학회) 2013 대한한의학원전학회지 Vol.26 No.1

        Objective: To clarify the features of needling method in the Zhenjiu Jiayijing, the needling depth and needling treatment time were sorted out. Method: According to the analysis, we can identify the crucial factors of the needling features. Result: Compared with the needling related content of Huangdi Neijing(黃帝內經), the historical outline of the needling development could be found and the ancient acupuncturing process was reappeared with a historical perspective. This research will provide guidance for the literature research and clinical application. Conclusion: Zhenjiu Jiayijing, also an important and valuable literature, will provide more evidence or clues for depth and treatment time of needling, which will be helpful and meaningful in clinic.

      • KCI등재

        Robot Grinding System Trajectory Compensation Based on Co-Kriging Method and Constant-Force Control Based on Adaptive Iterative Algorithm

        Tie Zhang,Ye Yu,Li-xin Yang,Meng Xiao,Shou-yan Chen 한국정밀공학회 2020 International Journal of Precision Engineering and Vol.21 No.9

        To reduce the grinding trajectory deviation caused by the absolute positioning accuracy of robot, a trajectory compensation method based on Co-Kriging space interpolation method is proposed. Meanwhile, an adaptive iterative constant force control method based on one-dimensional force sensor is proposed to improve the processing quality and efficiency of robot belt grinding. Firstly, an error model based on 6 DOF robot is constructed. Then, considering the workspace of robot belt grinding and the similarity of robot position error, the Co-Kriging compensation algorithm is used to compensate the grinding trajectory, which makes the compensation process convenient and accurate. Then, a grinding dynamics model based on deformation is established, and an adaptive iterative constant force control is proposed for complex robot belt grinding process, which overcomes the instability of grinding force and shortens its convergence time. Finally, the grinding trajectory compensation experiment and the force control experiment of spherical workpiece are carried out. The results show that the space interpolation compensation algorithm based on Co-Kriging method can significantly improve both the space position error of grinding trajectory and the actual error of workpiece, which proves the feasibility of compensation algorithm. Through force control algorithm, the grinding force fluctuation is maintained within 2 N, the mean value, standard deviation and variance of absolute value of force error are significantly reduced, the convergence rate of grinding force and the roughness of workpiece are much better than before, which shows the effectiveness of the proposed force control algorithm.

      • KCI등재

        An improved combinatorial optimization algorithm for thethree-dimensional layout problem with behavioral constraints

        Tie Jun,Jinzhi Wang,Enmin Feng 한국전산응용수학회 2008 Journal of applied mathematics & informatics Vol.26 No.1

        This paper is motivated by the problem of fitting a group of cuboids into a simplified rotating vessel of the artificial satellite. Here we introduce a combinatorial optimization model which reduces the threedimensional layout problem with behavioral constraints to a finite enumeration scheme. Moreover, a global combinatorial optimization algorithm is described in detail, which is an improved graph-theoretic heuristic. This paper is motivated by the problem of fitting a group of cuboids into a simplified rotating vessel of the artificial satellite. Here we introduce a combinatorial optimization model which reduces the threedimensional layout problem with behavioral constraints to a finite enumeration scheme. Moreover, a global combinatorial optimization algorithm is described in detail, which is an improved graph-theoretic heuristic.

      • KCI등재

        The Molecular Characterization of Serogroup C Neisseria meningitidis Strains Circulating in Beijing

        Tie-gang Zhang,Jing-guo He,Xiong He,Li-Juan Chen,Zhu-jun Shao,Mei-ping Sun 한국미생물학회 2006 The journal of microbiology Vol.44 No.6

        The aim of this study was to characterize the molecular features of serogroup C Neisseria meningitidis strains circulating in Beijing, China. Twenty out of 23 strains belonged to ST 4821. The causative serosubtype for meningococcal meningitis was P1.12-1,16-8. All of the strains expressed class 3 PorB protein. Among the five pulsed-field gel electrophoresis patterns observed, pattern III predominated.

      • KCI등재

        Laboratory Confirmation of A Suspicious Meningococcal Meningitis Death Case

        Tie-gang Zhang,Li-juan Chen,Jie Yang,Zhu-jun Shao,Xiong He,Jing-guo He,Ming Luo,Mei-ping Sun 한국미생물학회 2006 The journal of microbiology Vol.44 No.4

        A suspicious meningococcal meningitis death case was reported to the Beijing CDC. The blood specimen was analyzed via multi-PCR and MLST. 6 isolates from close contacts were analyzed via PFGE and MLST. According to the results of the above analyses, the cause of this case was identified as a serogroup A Neisseria meningitidis, which, in terms of sequence typing, belonged the ST7 group.

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