697 research outputs found

    Load Transfer Coefficient of Transverse Cracks in Continuously Reinforced Concrete Pavements Using FRP Bars

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    Continuously reinforced concrete pavement (CRCP) with fiber reinforced polymer bars (FRP) shows several advantages over the conventional CRCP, such as no erosion, lightweight, and low modulus. And the load transfer performance of the transverse cracks affects its service life. As the traditional evaluation system of crack load transfer failed to eliminate the influence of pavement deflection, the simple deflection value ratios for the cracks of the load transfer coefficient are not accurate enough to evaluate the load transfer performance of transverse crack in FRP-CRCP. In order to further understand the effects and improve the current load transfer coefficient of transverse cracks in FRP-CRCP, the relationship between the deflection value and load transfer coefficient in FRP-CRCP was analyzed. Using this approach, a more accurate prediction equation has been put forward to express the load transfer capacity

    Analysis on Structural Benefit of Jilin Cultural and Creative Industries

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    Cultural Creative Industry is a new industry in 21 century, and is also a new growth point in the local economic development. In recent years, Cultural Creative Industry in Jilin Province has made remarkable development and has greatly promoted the local economic growth. The paper estimates the structural benefit of Cultural Creative Industry in Jilin Province by using the structural deviation and comparable labor productivity index, and researches the allocation proportion and correlations of the elements of labor and capital in the industry, accordingly unearth the problems existed in the internal structure of the industry and provide counter planes to the coordinated growth of the industry. Key words: Cultural Creative Industry; Structural Benefit; Structural Deviation; Comparative Labor Productivit

    The political role of intellectuals

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    The article points out that the role of intellectuals in society and its relationship with the government amid the unfolding global financial crisis affected all spheres of social life. The authors proceed from the assumption that a change in the very nature of society, the increasing complexity and accelerating social dynamics, involves changing social community and "intelligentsia" in terms of structural and functional features. It is the rate of flow of social processes in the modern and continuously establishing society has led the authors to the treatment allocation of functional features, which constitute the social community of intellectuals. We believe that intelligentsia carries two major functions in society: stabilization of its social system and the function of its critical analysis. These features obviously have a different direction of its vector, hence, we base our reasoning on the ideas of Gramsci and distinguish its two types: conventional and organic

    The Temporal Dynamic Relationship Between Attention and Crowding: Electrophysiological Evidence From an Event-Related Potential Study

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    Visual crowding is the difficulty experienced in identifying a target flanked by other objects within the peripheral visual field. Despite extensive research conducted on this topic, the precise relationship between attention and crowding is still debatable. One perspective suggests that crowding is a bottom-up and pre-attentive process, while another suggests that crowding is top-down and attentional. A third perspective proposes that crowding is a combination of bottom-up and top-down processes. To address this debate, the current study manipulated the attention and distance between targets and flankers, while simultaneously measuring event-related potentials, in human participants. Results indicated that, compared to uncrowded targets, crowded targets elicited more negative frontal N1 and P2 activity and a less negative occipital N1 activity, regardless of whether targets were attended or unattended, and a more positive occipital P2 activity when they were attended. Furthermore, the crowded minus uncrowded difference amplitude was more negative over the frontal region and more positive over the occipital region when the targets were attended, compared to when they were unattended during the N1 and P2 stages. This suggests that crowding, a concept that originates from Gestalt grouping, occurs automatically and can be modulated by attention
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