RESUMO
This research offers a theoretical model to measure the impact of social media usage on social capital in the agricultural system of China. Furthermore, this research also investigates the relationship between agricultural policies related to entrepreneurship training and social media usage. A total of 589 questionnaires were distributed in the training courses of Fujian Agricultural Vocational Technology College, and, Fuzhou, Quanzhou, Jianning, and Liancheng counties and cities in Fujian during winter and summer vacations to target new vocational farmers. The results show that social use, hedonic use, and cognitive use of social media significantly impacted both bridging and bonding social capital. Furthermore, the results of the study suggest that entrepreneurs who have participated in the training have significantly higher levels of social use and cognitive use than those who have not been trained. The findings of this paper have implications for the digital transformation by agricultural entrepreneurs in recognition of the role of sustainable education and learning in entrepreneurial activities and the utilization of social and cognitive functions of social media to acquire and accumulate social capital and provide support for sustainable agriculture and rural development. Furthermore, the concepts of sustainability-driven agriculture in the digital transformational framework were also studied and it was indicated that transformed agriculture can effectively deal with the present challenges.
RESUMO
Deep T-section beams have been widely used in engineering structures due to their high bearing capacity, high construction efficiency and economic benefits, while the current beam design theory can hardly interpret reasonably the mechanical behaviors of deep beams. The performance features of the deep T-beam were investigated, involving in strain distribution and principal stress trace using experimental tests. Different near surface mounted (NSM) reinforcement schemes were proposed for deep T-beams aiming at improving the shear capacity. The results show that the behaviors of deep T-beams dissatisfy the assumption of plane cross-section, and the 'strut-and-tie' model is applicable in such structures. The reinforcement systems can significantly relieve the strain concentration, mid-span deflection and crack width in deep T-beams, consequently improving the shear capacity range from 45 to 65%. The scheme is preferential for the reinforcement of deep T-beams when the applied angles, positions and lengths of CFRP bars are optimized based on the 'strut-and-tie' model.
RESUMO
Social capital, which is derived from psychological research, has an important value in the construction of network relationships in enterprises. It influences the direction and tendency of network connections in start-up enterprises and has gradually become an important factor in the study of entrepreneurship by scholars. However, the relationship between this and the effectiveness of innovation is unclear. In this study, the social capital is divided into bonding social capital and bridging social capital, and specific data of agricultural entrepreneurs are collected through questionnaire surveys. The results show that both bonding and bridging social capital have a significant positive effect on agricultural entrepreneurship performance. The entrepreneurial capacity of agricultural entrepreneurs regulates the relationship between social capital and creative performance. In the relationship between integrated social capital and creative performance, operational competency plays a positive role and opportunity recognition plays a negative role. On the other hand, in the relationship between bridging social capital and creative performance, the opportunity recognition plays a positive role and the operational competency plays a negative role. Finally, based on the above findings, this study proposes theoretical and practical implications and suggestions for follow-up research.
