We investigated an antecedent and consequences of network centrality in a virtual brand community from the perspective of the motivation of social enhancement. The research model was proposed and tested using structural equation modeling. The results showed that the motivation of social enhancement can promote both degree and betweenness centrality. As the members' degree and betweenness centrality increase, the psychological ownership they feel toward the community becomes stronger, thereby increasing the likelihood that the members will engage in virtual brand community citizenship behavior. The theoretical and practical implications of the findings are discussed.
This article aims to explore the effect of charismatic leadership on creativity. By using survey data from 314 employees of a large tobacco company in China, we found that charismatic leadership was positively related to follower creativity, psychological ownership mediated the effect of charismatic leadership on creativity, and coworker helping and support moderated the relationship between charismatic leadership and creativity. Theoretical and practical implications are discussed.
Based on social exchange theory, we examined the relationship between network embeddedness and the brand-related behavior intentions of community members from the perspective of psychological ownership. The results indicated that network embeddedness (structural and relational embeddedness) positively impacts psychological ownership, while psychological ownership positively impacts brand-related behavior intentions (protecting relevant brands and repelling competitive brands) and mediates the effects of network embeddedness on such intentions. Theoretical and practical implications in this study are discussed.
In this paper, a passive-based adaptive robust super-twisting nonlinear controller (PBARSNC) is proposed for high accuracy torque tracking control of the novel electro-hydraulic loading system with disturbances and uncertainties. The construction of the stability of this electro-hydraulic control system is given using passivity theory that results in a passivity-based controller (PBC). Considering parameter uncertainties and constant or slowly varying disturbances, adaptive law is adopted in the passivity-based controller. Furthermore, super-twisting second-order sliding mode control is used to reject modeling uncertainties and matched disturbances. Passivity theory, adaptive method and super-twisting algorithm are synthesized via the recursive design method. The proposed passive-based adaptive robust super-twisting nonlinear control can guarantee the torque tracking performance in the presence of various uncertainties, which is very important for high-accuracy tracking control of hydraulic servo systems. Extensive simulations are carried out to verify the high-accuracy tracking performance of the proposed control strategy.
Abstract. Online-games are products of hedonic information technology. Players' addiction will lead to seriously negative consequences. That how to prevent online-game addiction exclusively becomes a problem concerned by whole society. The purpose of this study is to explore the influence factors and its mechanism that can weaken or even eliminate onlinegame addiction. On the basis of the theory of planned behaviour, anticipated guilt and past behaviour are introduced into the model to explain players' quit intention of online-game. Data collected from 393 online-game players around China mainland indicate that negative attitude, negativesubjective norm and perceived behavioural control significantly affect the quit intention of online-game players, while the anticipated guilt plays a mediator role. Past behaviour can moderate the relations between the anticipated guilt and the quit intention of online-game players. The more the past game behaviour the player owns, the stronger the positive effects of anticipated guilt on game quit intention he/she will harbor. Conclusions are helpful to the intervention of player's game behaviour and strengthen the self-control ability of players.
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