Construction of Evaluation Index System for Cultural Influence of Chinese Martial Arts Using Delphi-AHP Method

Yuanqing Li,송제호 대한무도학회 2020 대한무도학회지 Vol.22 No.3

The purpose of this study was to objectively develop the level of influence of Chinese martial arts culture through the establishment of evaluation index system and quantitative analysis on Chinese martial arts culture influence through Delphi method and the hierarchical analysis method (AHP). The results of the Delphi analysis through in-depth interviews of 15 experts and AHP analysis through the survey of five experts revealed that the influence of Chinese martial arts culture was four parts: the dissemination of martial arts culture, the propagation of martial arts culture, the support of martial arts culture, and the innovation of martial arts culture. Accordingly, eight second-level evaluation indexes and 46 third-level evaluation indexes were added to establish the Chinese martial arts cultural impact assessment index system. It is believed that objective evaluation of the development and influence of martial arts in China will be possible through the establishment of an influence evaluation system for Chinese martial arts culture. Through this objective evaluation, it is believed that the understanding of Chinese martial arts culture and its value as a basic material are considered.

Bearing Capacity of Non-linear Metallic Spiders Used in Point Supported Glass Facades

Yuanqing Wang,Huanxin Yuan,Yongjiu Shi,Yu Zou 한국강구조학회 2012 International Journal of Steel Structures Vol.12 No.2

Experimental and numerical investigations on bearing capacity of non-linear metallic spiders used in glass facades were presented. The non-linear metallic materials adopted in this study included two aluminum alloys (ZL105-T1 and ZL111-T6)and one austenitic stainless steel (AISI 302). A total of 21 spider specimens including three types of configurations were tested. Numerical simulation of the tests was conducted by virtue of sophisticated finite element (FE) models built up with ANSYS software. The test and FE predicted results were used to develop new design proposals for the spiders. Evaluation of the proposed design formulae revealed that a comparatively large safety margin would be appropriate in consideration of brittle glass panels. Finally, safety assessment of the spiders was conducted based upon a practical engineering application-the exhibition greenhouse in Beijing Botanical Garden.

Fracture Behavior Analyses of Welded Beam-to-Column Connections Based on Elastic and Inelastic Fracture Mechanics

Yuanqing Wang,Hui Zhou,Yongjiu Shi,Hong Chen 한국강구조학회 2010 International Journal of Steel Structures Vol.10 No.3

Detailed two-dimensional finite element models are applied to investigate the fracture behavior of welded beam-to-column connections which are widely used in steel structures in China. The elastic stress intensity factor (KI) and inelastic J-integral (JI) around the crack tip are calculated to provide quantitative estimates of fracture toughness requirements in the connections with different configurations. Four types of weld access holes are modeled after the full-scale connection tests. Subsequently,several connection details including weld flaw size and location, weld backing bar, fillet reinforcement and other modifications,are examined in the effectiveness of reducing the toughness demands on the weld. The analyses have confirmed the observations from connection cyclic tests that the fracture is more likely to occur at the beam flange weld heat affected zone (HAZ) which sustains extensive yielding and exhibits relatively low fracture toughness. The weld flaw size and location have shown significant effects on the toughness requirements both by elastic and inelastic analyses. The modification of removing backing bar and reinforcing a fillet weld shows the most effective approach to reduce the toughness demands. By inelastic analyses, the initial weld defect at HAZ (10 mm away from the column face) shows more toughness demands than that at the interface of the column flange and weld. The evaluated moment at column face when crack predicted to propagate, agrees well with the ultimate moment obtained from the connection tests.

An Iterative Optimization Approach for Fuzzy Predictive Control

Yuanqing Yang,Baocang Ding 제어·로봇·시스템학회 2020 International Journal of Control, Automation, and Vol.18 No.8

This paper proposes an iterative approach in fuzzy model predictive control. When the prediction modelis nonlinear or uncertain, non-convex optimization is often encountered which has to be solved by iterative approximation. An alternative is to convert the original issue into a min-max robust MPC problem, where the knowledge of the predictive membership function is not utilized. In this paper, based on the robust MPC approach, we further enhance the model prediction by iteratively applying the optimal control move and state sequences in order to improve the performance. A numerical example is provided to illustrate the effectiveness of the proposed approach.

Driving Factors on the Adoption of Low Carbon Production: Evidence from 265 Enterprises Managers in Jiangsu Province of China

Yuanqing Lu,Haiyan Zhao,Fang Huang,Jin Wang 보안공학연구지원센터 2014 International Journal of u- and e- Service, Scienc Vol.7 No.5

It’s the inevitably choice for enterprises to low carbon production, which is the important way to cope with the carbon limitation in the future and to gain competitiveness. Based on factor analysis, present paper developde low carbon production behavior questionnaire and investigated 265 enterprises managers in JiangsuProvince. Results of PLS test shows that: government policies, enterprise development, foreign trade have apparent effects on low carbon production behavior; the role of the public pressure to low carbon production behavior is not found. Through the driving factors analysis, present paper proposed some policy suggestions.

Analysis of Stability of Solutions for Constant Coefficients Linear Singular Systems with Delay

Yuanqing Li...et al KYUNGPOOK UNIVERSITY 1999 Kyungpook mathematical journal Vol.39 No.1

This paper presents new de finitions of stability of solutions to singular systems with delay, and establishes theorems on stability and unstability. Then, this paper discusses nth order constant coefficient linear singular systems with delay, obtains some results of stability and unstability.

Experimental Study of Lateral-torsional Buckling Behavior of Stainless Steel Welded I-section Beams

Yuanqing Wang,Lu Yang,Bo Gao,Yong-Jiu Shi,Huanxin Yuan 한국강구조학회 2014 International Journal of Steel Structures Vol.14 No.2

Investigations on lateral-torsional buckling behavior of stainless steel welded I-section beams were carried out through fourpointbending tests. The Chinese austenitic stainless steel adopted in this study contains approximately 17% of Cr, which couldbe graded as EN 1.4401. The non-linear stress-strain relationship of the material, the residual stress distribution of the sectionand the ultimate moment capacity of the welded I-section beams were obtained from the experiments, and they were comparedwith those results predicted by analytical models recommended by several researchers. Besides, a new model is proposed topredict the residual stress distribution of the stainless steel welded I-section beams.

Fracture Prediction of Welded Steel Connections Using Traditional Fracture Mechanics and Calibrated Micromechanics Based Models

Yuanqing Wang,Hui Zhou,Yongjiu Shi,Jun Xiong 한국강구조학회 2011 International Journal of Steel Structures Vol.11 No.3

Fracture resistance is of primary concern in the seismic design of beam-to-column connections in steel moment resisting frames (SMRFs). Micromechanics based fracture models such as the void growth model (VGM) and the stress modified critical strain (SMCS) model provide alternative approaches for ductile fracture prediction by relating micro-mechanisms of void nucleation, growth and coalescence to macroscopic stresses and strains. In this study, the VGM and SMCS models were calibrated for Q345 structural steel and the corresponding weld, through smooth notched tensile (SNT) tests and complementary continuum finite element models (FEMs). A series of seven local connections representing beam-to-column connections in SMRFs were tested under monotonic tensile loading and the specimen elongations at fracture critical point were obtained. The traditional J-integral based fracture mechanics and micromechanics based fracture models (VGM and SMCS) were applied to predict fracture in each tested local connection through refined three-dimensional FEM. Comparisons between these numerical approaches and experimental observations in prediction of fracture critical displacement, indicated that the VGM and SMCS models were able to predict fracture of welded connection with good accuracy, while the J-integral based approach resulted in quite conservative fracture prediction. This paper has bridged the gap between small-scale material tests and large-scale structural experiments in fracture evaluations

Isolation, Molecular Characterization and Antibiotic Susceptibility Pattern of Vibrio parahaemolyticus from Aquatic Products in the Southern Fujian Coast, China

Yuanqing Hu,Fengxia Li,Yixian Zheng,Xinan Jiao,Liqing Guo 한국미생물·생명공학회 2020 Journal of microbiology and biotechnology Vol.30 No.6

Vibrio parahaemolyticus is a major gastroenteritis-causing pathogen in many Asian countries. Antimicrobial resistance in V. parahaemolyticus has been recognized as a critical threat to food safety. In this study, we determined the prevalence and incidence of antimicrobial resistance in V. parahaemolyticus in the southern Fujian coast, China. A total of 62 isolates were confirmed in retail aquatic products from June to October of 2018. The serotype O3:K6 strains, the virulence genes tdh and trh, antibiotic susceptibility and molecular typing were investigated. Then plasmid profiling analysis and curing experiment were performed for multidrug-resistant strains. The results showed that the total occurrence of V. parahaemolyticus was 31% out of 200 samples. Five strains (8.1%) out of 62 isolates were identified as the V. parahaemolyticus O3:K6 pandemic clone. A large majority of isolates exhibited higher resistance to penicillin (77.4%), oxacillin (71%), ampicillin (66.1%) and vancomycin (59.7%). Seventy-one percent (44/62) of the isolates exhibited multiple antimicrobial resistance. All 62 isolates were grouped into 7 clusters by randomly amplified polymorphic DNA, and most of the isolates (80.6%) were distributed within cluster A. Plasmids were detected in approximately 75% of the isolates, and seven different profiles were observed. Seventy-six percent (25/33) of the isolates carrying the plasmids were eliminated by 0.006% SDS incubated at 42°C, a sublethal condition. The occurrence of multidrug-resistant strains could be an indication of the excessive use of antibiotics in aquaculture farming. The rational use of antimicrobial agents and the surveillance of antibiotic administration may reduce the acquisition of resistance by microorganisms in aquatic ecosystems.

Basic Theory, Exponential Estimates and Global Existence Uniqueness of Solutions for a Class of Singular Linear Functional Differential Equations with Delay

Li Yuanqing ...et al. KYUNGPOOK UNIVERSITY 1997 Kyungpook mathematical journal Vol.37 No.1

This paper establishes the basic theory of a type of singular linear functional differential equations with delay, including existence, uniqueness, continuation of solution, then discusses the exponential estimates, global existence and uniqueness of solution.