온라인 브랜드 개성과 자아이미지와의 일치성이 브랜드 로열티에 미치는 영향

왕샤오우(Xiao Wu Wang),이홍일(Hong iI Lee),박철(Che이 Park) 한국IT서비스학회 2010 한국IT서비스학회 학술대회 논문집 Vol.2010 No.1

최근 온라인 브랜드에 대한 연구들이 많이 둥장하고 있으나 온라인 영역에서 브랜드 개성(Brand Personality) 과 로열티 (Brand Loyalty) 간의 관계에 대한 연구는 많지 않다. 본 연구는 온라인 영역에서의 개성과 자아이미지 (Self-Image) 그리고 로열티간의 관계를 밝히기 위해 시도되었다. 이를 위해 절대차이모델 (Abs 이 ute Difference Model) 을 적용하여 온라인 브랜드 개성과 자아이미지와의 일치성 지수를 도출하고, 온라인 브랜드 로열티에 미치는 영향을 확인하였다‘ 연구결과 브랜드 개성의 진실, 최신, 유능성 차원이 온라인 브랜드 로열티에 영향을 미치는 것을 발견하였다. 이러한 결과는 온라인 브랜드의 로열티를 높이기 위해서는 자아이미지와 브랜드 개성 차원이 일치하는 타켓집단의 선정과 브랜드 이미지 개발이 필요함을 시사하고 있다 본 연구의 결과는 브랜드 개성을 활용한 온라인 브랜드 차별화 전략과 마케팅 커뮤니케이션 전략을 수립하는데 유용할 것이다.

Effects of thickness variations on the thermal elastoplastic behavior of annular discs

Wang, Yun-Che,Alexandrov, Sergei,Jeng, Yeau-Ren Techno-Press 2013 Structural Engineering and Mechanics, An Int'l Jou Vol.47 No.6

Metallic annular discs with their outer boundary fully constrained are studied with newly derived semi-analytical solutions for the effects of thickness variations under thermal loading and unloading. The plane stress and axisymmetric assumptions were adopted, and the thickness of the disk depends on the radius hyperbolically with an exponent n. Furthermore, it is assumed that the stress state is two dimensional and temperature is uniform in the domain. The solutions include the elastic, elastic-plastic and plastic-collapse behavior, depending on the values of temperature. The von Mises type yield criterion is adopted in this work. The material properties, Young's modulus, yield stress and thermal expansion coefficient, are assumed temperature dependent, while the Poisson's ratio is assumed to be temperature independent. It is found that for any n values, if the normalized hole radius a greater than 0.6, the normalized temperature difference between the elastically reversible temperature and plastic collapse temperature is a monotonically decreasing function of inner radius. For small holes, the n values have strong effects on the normalized temperature difference. Furthermore, it is shown that thickness variations may have stronger effects on the strain distributions when temperature-dependent material properties are considered.

Stress analysis of a two-phase composite having a negative-stiffness inclusion in two dimensions

Wang, Yun-Che,Ko, Chi-Ching Techno-Press 2009 Interaction and multiscale mechanics Vol.2 No.3

Recent development in composites containing phase-transforming particles, such as vanadium dioxide or barium titanate, reveals the overall stiffness and viscoelastic damping of the composites may be unbounded (Lakes et al. 2001, Jaglinski et al. 2007). Negative stiffness is induced from phase transformation predicted by the Landau phase transformation theory. Although this unbounded phenomenon is theoretically supported with the composite homogenization theory, detailed stress analyses of the composites are still lacking. In this work, we analyze the stress distribution of the Hashin-Shtrikman (HS) composite and its two-dimensional variant, namely a circular inclusion in a square plate, under the assumption that the Young's modulus of the inclusion is negative. Assumption of negative stiffness is a priori in the present analysis. For stress analysis, a closed form solution for the HS model and finite element solutions for the 2D composite are presented. A static loading condition is adopted to estimate the effective modulus of the composites by the ratio of stress to average strain on the loading edges. It is found that the interfacial stresses between the circular inclusion and matrix increase dramatically when the negative stiffness is so tuned that overall stiffness is unbounded. Furthermore, it is found that stress distributions in the inclusion are not uniform, contrary to Eshelby's theorem, which states, for two-phase, infinite composites, the inclusion's stress distribution is uniform when the shape of the inclusion has higher symmetry than an ellipse. The stability of the composites is discussed from the viewpoint of deterioration of perfect interface conditions due to excessive interfacial stresses.

Molecular dynamics studies of interaction between hydrogenand carbon nano-carriers

Wang, Yun-Che,Wu, Chun-Yi,Chen, Chi,Yang, Ding-Shen Techno-Press 2014 Coupled systems mechanics Vol.3 No.4

In this work, quantum molecular dynamics simulations (QMD) are preformed to study the hydrogen molecules in three types of carbon nanostructures, $C_{60}$ fullerene, (5,5) and (9,0) carbon nanotubes and graphene layers. Interactions between hydrogen and the nanostructures is of importance to understand hydrogen storage for the development of hydrogen economy. The QMD method overcomes the difficulties with empirical interatomic potentials to model the interaction among hydrogen and carbon atoms in the confined geometry. In QMD, the interatomic forces are calculated by solving the Schrodinger's equation with the density functional theory (DFT) formulation, and the positions of the atomic nucleus are calculated with the Newton's second law in accordance with the Born-Oppenheimer approximation. It is found that the number of hydrogen atoms that is less than 58 can be stored in the $C_{60}$ fullerene. With larger carbon fullerenes, more hydrogen may be stored. For hydrogen molecules passing though the fullerene, a particular orientation is required to obtain least energy barrier. For carbon nanotubes and graphene, adsorption may adhere hydrogen atoms to carbon atoms. In addition, hydrogen molecules can also be stored inside the nanotubes or between the adjacent layers in graphite, multi-layer graphene.

Regulatory Network Analysis of MicroRNAs and Genes in Neuroblastoma

Wang, Li,Che, Xiang-Jiu,Wang, Ning,Li, Jie,Zhu, Ming-Hui Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.18

Neuroblastoma (NB), the most common extracranial solid tumor, accounts for 10% of childhood cancer. To date, scientists have gained quite a lot of knowledge about microRNAs (miRNAs) and their genes in NB. Discovering inner regulation networks, however, still presents problems. Our study was focused on determining differentially-expressed miRNAs, their target genes and transcription factors (TFs) which exert profound influence on the pathogenesis of NB. Here we constructed three regulatory networks: differentially-expressed, related and global. We compared and analyzed the differences between the three networks to distinguish key pathways and significant nodes. Certain pathways demonstrated specific features. The differentially-expressed network consists of already identified differentially-expressed genes, miRNAs and their host genes. With this network, we can clearly see how pathways of differentially expressed genes, differentially expressed miRNAs and TFs affect on the progression of NB. MYCN, for example, which is a mutated gene of NB, is targeted by hsa-miR-29a and hsa-miR-34a, and regulates another eight differentially-expressed miRNAs that target genes VEGFA, BCL2, REL2 and so on. Further related genes and miRNAs were obtained to construct the related network and it was observed that a miRNA and its target gene exhibit special features. Hsa-miR-34a, for example, targets gene MYC, which regulates hsa-miR-34a in turn. This forms a self-adaption association. TFs like MYC and PTEN having six types of adjacent nodes and other classes of TFs investigated really can help to demonstrate that TFs affect pathways through expressions of significant miRNAs involved in the pathogenesis of NB. The present study providing comprehensive data partially reveals the mechanism of NB and should facilitate future studies to gain more significant and related data results for NB.

Molecular dynamics studies of interaction between hydrogenand carbon nano-carriers

Wang, Yun-Che,Wu, Chun-Yi,Chen, Chi,Yang, Ding-Shen Techno-Press 2013 Interaction and multiscale mechanics Vol.6 No.3

In this work, quantum molecular dynamics simulations (QMD) are preformed to study the hydrogen molecules in three types of carbon nanostructures, $C_{60}$ fullerene, (5,5) and (9,0) carbon nanotubes and graphene layers. Interactions between hydrogen and the nanostructures is of importance to understand hydrogen storage for the development of hydrogen economy. The QMD method overcomes the difficulties with empirical interatomic potentials to model the interaction among hydrogen and carbon atoms in the confined geometry. In QMD, the interatomic forces are calculated by solving the Schrodinger's equation with the density functional theory (DFT) formulation, and the positions of the atomic nucleus are calculated with the Newton's second law in accordance with the Born-Oppenheimer approximation. It is found that the number of hydrogen atoms that is less than 58 can be stored in the $C_{60}$ fullerene. With larger carbon fullerenes, more hydrogen may be stored. For hydrogen molecules passing though the fullerene, a particular orientation is required to obtain least energy barrier. For carbon nanotubes and graphene, adsorption may adhere hydrogen atoms to carbon atoms. In addition, hydrogen molecules can also be stored inside the nanotubes or between the adjacent layers in graphite, multi-layer graphene.

IL-1beta Acts in Synergy with Endogenous IL-1beta in A375-S2 Human Melanoma Cell Apoptosis Through Mitochondrial Pathway

Wang Min Wei,Onodera Satoshi,Tashiro Shin Ichi,Ikejima Takashi,Wang Che 대한의학회 2005 Journal of Korean medical science Vol.20 No.4

One-Step Synthesis of Hybrid Silver Particles for Front Contact Paste for Crystalline Silicon Solar Cells

Quande Che,Hongxing Yang,Lin Lu,Yuanhao Wang,Hai Wang 대한금속·재료학회 2013 ELECTRONIC MATERIALS LETTERS Vol.9 No.3

This paper reports a one-step synthesis of hybrid rod-like and spherical silver particles and its application in the silver front contact paste for crystalline silicon solar cells. The hybrid silver particles were synthesized by reducing silver nitrate in ethylene glycol. X-ray diffraction indicated that the hybrid silver particles were well crystallized with no crystallographic impurities. Scanning electron microscopy showed that the rod-like particles in the hybrid particles were 0.2 μm to 0.5 μm in width and 1 μm to 4 μm in length, and that the average size of the spherical particles was 0.5 μm. The fabricated crystalline silicon solar cell based on the as-prepared hybrid silver particles showed good photovoltaic performance.

Effects of thickness variations on the thermal elastoplastic behavior of annular discs

Yun-Che Wang,Sergei Alexandrov,Yeau-Ren Jeng 국제구조공학회 2013 Structural Engineering and Mechanics, An Int'l Jou Vol.47 No.6

Metallic annular discs with their outer boundary fully constrained are studied with newly derived semi-analytical solutions for the effects of thickness variations under thermal loading and unloading. The plane stress and axisymmetric assumptions were adopted, and the thickness of the disk depends on the radius hyperbolically with an exponent n. Furthermore, it is assumed that the stress state is two dimensional and temperature is uniform in the domain. The solutions include the elastic, elastic-plastic and plasticcollapse behavior, depending on the values of temperature. The von Mises type yield criterion is adopted in this work. The material properties, Young’s modulus, yield stress and thermal expansion coefficient, are assumed temperature dependent, while the Poisson’s ratio is assumed to be temperature independent. It is found that for any n values, if the normalized hole radius a greater than 0.6, the normalized temperature difference between the elastically reversible temperature and plastic collapse temperature is a monotonically decreasing function of inner radius. For small holes, the n values have strong effects on the normalized temperature difference. Furthermore, it is shown that thickness variations may have stronger effects on the strain distributions when temperature-dependent material properties are considered.

Energy dissipation of steel-polymer composite beam-column connector

Yun-Che Wang,Chih-Chin Ko 국제구조공학회 2015 Steel and Composite Structures, An International J Vol.18 No.5

The connection between a column and a beam is of particular importance to ensure the safety of civil engineering structures, such as high-rise buildings and bridges. While the connector must bear sufficient force for load transmission, increase of its ductility, toughness and damping may greatly enhance the overall safety of the structures. In this work, a composite beam-column connector is proposed and analyzed with the finite element method, including effects of elasticity, linear viscoelasticity, plasticity, as well as geometric nonlinearity. The composite connector consists of three parts: (1) soft steel; (2) polymer; and (3) conventional steel to be connected to beam and column. It is found that even in the linear range, the energy dissipation capacity of the composite connector is largely enhanced by the polymer material. Since the soft steel exhibits low yield stress and high ductility, hence under large deformation the soft steel has the plastic deformation to give rise to unique energy dissipation. With suitable geometric design, the connector may be tuned to exhibit different strengths and energy dissipation capabilities for real-world applications.