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Yanlin Wu,이영숙 사단법인 미래융합기술연구학회 2020 아시아태평양융합연구교류논문지 Vol.6 No.10
Online shopping of fashion products has become an important way of purchase for Chinese consumers. However, consumers' satisfaction with convenient shopping will also be accompanied by the emergence of risk perception and quality perception. Offline shopping, as a traditional way of shopping, faces the challenge of online shopping, but it has gradually recovered in recent years. Because the fashion products in offline market can be judged directly, it can be speculated that the risk perception and quality perception in offline shopping is different from that in online shopping. Therefore, based on the comparison between online shopping and offline shopping, this paper intends to study the impact of risk perception and quality perception on consumers' purchase intention aimed at working women in their 20s and 30s in China. The responses from the sample were collected through survey questionnaires. The collected data were statistically processed through frequency analysis, reliability and validity analysis, factor analysis and correlation relationship analysis and the hypothesis verification of the structural equation model. Based on the results of the analysis of purchasing fashion products online, the factors of risk perception like the product information risk, economic risk, psychological risk and the factors of quality perception like the service quality and product quality have a positive effect on purchase intention. On the other hand, the analysis results of purchasing fashion products offline is that only the factor of risk perception like the product information risk has been shown to have a positive impact on purchase intention. This study is intended to help fashion companies to develop market strategies to on offline and online marketing.
Yanlin Chen,Yanjiang Huang,Kaibin Chen,Yeping Wang,Yanbin Wu 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.6
Reasonable robot joint stiffness is necessary to guarantee the safety and control accuracy of cooperative robots. In this study, a novel flat torsional spring with corrugated flexible units for a series elastic actuator (SEA) was developed to meet the requirements of cooperative robots. The torsional spring can absorb impact energy. The spring was optimized through the design of experiment method, and its theoretical stiffness was verified through numerical calculation and finite element analysis. Compared with other existing flat torsional springs in the simulation, the proposed torsional spring showed reasonable torsional stiffness and high radial and axial stiffness, which could guarantee safety and control accuracy. The proposed torsional spring was also evaluated through real experiments. Simulation and experimental results revealed that the proposed torsional spring has a linear torque versus angle characteristic.
MODIFIED LIMITED MEMORY BFGS METHOD WITH NONMONOTONE LINE SEARCH FOR UNCONSTRAINED OPTIMIZATION
Yuan, Gonglin,Wei, Zengxin,Wu, Yanlin Korean Mathematical Society 2010 대한수학회지 Vol.47 No.4
In this paper, we propose two limited memory BFGS algorithms with a nonmonotone line search technique for unconstrained optimization problems. The global convergence of the given methods will be established under suitable conditions. Numerical results show that the presented algorithms are more competitive than the normal BFGS method.
Li Wang,Yuanchuan He,Yanlin Mu,Bo Wu,Mengjiao Liu,Yan Zhao,Xin Lai,Jian Bi,Daojiang Gao 대한금속·재료학회 2019 ELECTRONIC MATERIALS LETTERS Vol.15 No.2
LiFe(MoO 4 ) 2 microcrystals have been fabricated via a facile sol–gel driving process. The obtained LiFe(MoO 4 ) 2 microcrystalsare characterized through X-ray diff raction, thermal analysis, scanning electron microscope, transmission electronmicroscope and high resolution transmission electron microscope. The results demonstrate that the as-synthesized microcrystalspossess triclinic structure and exhibit uniform particle size of 1–2 μm. When served as anode material for lithiumion batteries, LiFe(MoO 4 ) 2 microcrystals display a very high specifi c capacity of 925 mAh g −1 at a current rate of 1 C after500 cycles and a high retention rate of 88%, showing superior electrochemical performance.
MODIFIED LIMITED MEMORY BFGS METHOD WITH NONMONOTONE LINE SEARCH FOR UNCONSTRAINED OPTIMIZATION
Gonglin Yuan,Zengxin Wei,Yanlin Wu 대한수학회 2010 대한수학회지 Vol.47 No.4
In this paper, we propose two limited memory BFGS algorithms with a nonmonotone line search technique for unconstrained optimization problems. The global convergence of the given methods will be established under suitable conditions. Numerical results show that the presented algorithms are more competitive than the normal BFGS method.