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Search Results: 1 - 10 of 53117 matches for " Yan-Fei Tan "
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Supply Chain Coordination for Strong Retailer with Extended Warranty under Network Externality  [PDF]
Yan-Fei Tan, Yu-Yin Yi, Jun-Jiang Yao
Journal of Service Science and Management (JSSM) , 2015, DOI: 10.4236/jssm.2015.83041
Abstract: This paper constructed a retailer-leading supply chain system considering the extended warranty (EW) with single manufacturer and single retailer to study the influence of network externality on retailer-leading supply chain coordination. First of all, we analyzed and compared the retail price, EW price, EW quality, and the total system profit in centralized and decentralized model respectively. Then we analyzed the influence of network externality on decision variables and system profits. We found that the network externality increased the loss of decision efficiency. After that, we considered the coordination of the supply chain system with extended warranty. Finally, some numerical examples were presented for further analysis.
Digital Control for Dynamic Performance Enhancement of DC-DC Switching Converters
Yan-Fei Liu
Lecture Notes in Engineering and Computer Science , 2011,
Effect of Online Reviews on Consumer Purchase Behavior  [PDF]
Zan Mo, Yan-Fei Li, Peng Fan
Journal of Service Science and Management (JSSM) , 2015, DOI: 10.4236/jssm.2015.83043
Abstract: In order to understand the effect of online reviews on consumer purchase behavior, more than 400 Taobao shops’ online reviews are collected. Based on S-O-R model (Stimulus-Organism-Response Model), this paper studies the influence on consumer purchase behavior according to online reviews of experience goods from a new perspective of consumer learning. Using SPSS 19.0 software for data analysis and assumptions, statistical results show that the positive reviews, describing rating, picture reviews, appended reviews and cumulative reviews have an effect on consumer purchase behavior. The moderate reviews, negative reviews, logistics rating and service rating are not significant in the results. Finally, this paper puts forward suggestions and summary.
Bifurcation Analysis of the Full Velocity Difference Model

JIN Yan-Fei,XU Meng,

中国物理快报 , 2010,
Abstract: Bifurcation is investigated with the full velocity difference traffic model. Applying the Hopf theorem, an analytical Hopf bifurcation calculation is performed and the critical road length is determined for arbitrary numbers of vehicles. It is found that the Hopf bifurcation critical points locate on the boundary of the linear instability region. Crossing the boundary, the uniform traffic flow loses linear stability via Hopf bifurcation and the oscillations appear.
The Evolution of Wide Binary Stars
Yan-Fei Jiang,Scott Tremaine
Physics , 2009, DOI: 10.1111/j.1365-2966.2009.15744.x
Abstract: We study the orbital evolution of wide binary stars in the solar neighborhood due to gravitational perturbations from passing stars. We include the effects of the Galactic tidal field and continue to follow the stars after they become unbound. For a wide variety of initial semi-major axes and formation times, we find that the number density (stars per unit logarithmic interval in projected separation) exhibits a minimum at a few times the Jacobi radius r_J, which equals 1.7 pc for a binary of solar-mass stars. The density peak interior to this minimum arises from the primordial distribution of bound binaries, and the exterior density, which peaks at \sim 100--300 pc separation, arises from formerly bound binaries that are slowly drifting apart. The exterior peak gives rise to a significant long-range correlation in the positions and velocities of disk stars that should be detectable in large astrometric surveys such as GAIA that can measure accurate three-dimensional distances and velocities.
The roles of polyamines on pathogenesis of bacterial pathogens

ZHANG Yan-Fei,MA Cui-Ping,TAN Xun-Gang,ZOU Yu-Xia,

微生物学通报 , 2013,
Abstract: 多胺是一类具有两个以上氨基的脂肪族化合物, 它们在生物体内含量的动态平衡受合成、转运、降解及互换等过程的影响, 多胺及其合成和转运系统与病原菌的致病性相关。本文综述了多胺在细菌毒力因子的转录和翻译、细菌生物膜的合成、细菌对抗生素的抗性、细菌对抗宿主的酸性胁迫和氧化胁迫、细菌对抗宿主的先天免疫防御机制、细菌致病性生物分子的合成等方面的重要作用。
Dimethylammonium bis(4-methylmorpholin-4-ium) tetrachloridozincate
Yan-wei Zhang,Yan-fei Wang
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811025049
Abstract: The title compound, (C2H8N)(C5H12NO)[ZnCl4], was synthesized by hydrothermal reaction of ZnCl2 with 4-methylmorpholine in a dimethylformamide solution. The asymmetric unit is composed of half a [ZnCl4]2 anion, half a 4-methylmorpholin-4-ium cation and half a dimethylammonium cation, all located on mirror planes parallel to ac. All the amine H atoms are involved in intermolecular N—H...Cl hydrogen bonds, building up an infinite chain parallel to the c axis.


物理学报 , 1990,
Abstract: The electrical resistance and low-field magnetoresistance have been measured on three dimensional ZrCo alloys. The data of magnetoresistance can be accounted for by the contributions from the quenching of superconducting fluctuation and weak localization. The former described by the Maki-Thompson correction is predominant at lower temperatures. The interaction in the particleparticle channel gives rise to a negative magnetoresistance.The paraconductivity phenomenon has been observed and found to be in good agreement with the theory, the (M-T) term plays an important role, the depression by the pair breaking effects due to thermal phonons may only be 10% of the term.


物理学报 , 1988,
Abstract: 文中报道非晶Cu33Y67低温电阻和磁阻的测量结果。这种合金是在He气氛中以熔化-自旋技术制备的。相互作用效果可以为4.5K以下的低温电阻提供一个-T1/2形式的贡献。在稍高的温度,其变化规律也可以通过相互作用和弱定域化的联合来解释。上至1.8T的磁阻测量揭示出一个具有自旋-轨道散射较强影响的弱定域化效果。Cu33Y67的磁阻测量值比弱定域化预言的大。如果把弱定域化的理论预言强度增大3倍,则可以在
Experiments with Lanczos Biconjugate a-Orthonormalization Methods for MoM Discretizations of Maxwell's Equations
Yan-Fei Jing;Bruno Carpentieri;Ting-Zhu Huang
PIER , 2009, DOI: 10.2528/PIER09101901
Abstract: In this paper, we consider a novel class of Krylov projection methods computed from the Lanczos biconjugate A-Orthonormalization procedure for the solution of dense complex non-Hermitian linear systems arising from the Method of Moments discretization of Maxwell's equations. We report on experiments on a set of model problems representative of realistic radar-cross section calculations to show their competitiveness with other popular Krylov solvers, especially when memory is a concern. The results presented in this study will contribute to assess the potential of iterative Krylov methods for solving electromagnetic scattering problems from large structures enriching the database of this technology.
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