Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Yifu Zhao"'
Publikováno v:
Agriculture, Vol 14, Iss 6, p 954 (2024)
Poverty alleviation through relocation (PAR) is a milestone project in winning the battle against extreme poverty. Its aim is to relocate poor people from inhospitable areas and lift them out of poverty. Assessing the vulnerability to multidimensiona
Externí odkaz:
https://doaj.org/article/3638d6261d7d47958ca0655b1b5985a4
Publikováno v:
Agriculture, Vol 13, Iss 8, p 1473 (2023)
Talent revitalization is the basis of rural revitalization, and the return of migrant workers to their hometowns is a critical way to improve rural human capital. Based on the perspective of individual–family interaction and collaboration, we const
Externí odkaz:
https://doaj.org/article/aad8167e6102427e8dbf9119d15461b8
Publikováno v:
Agriculture, Vol 13, Iss 6, p 1247 (2023)
This study examines the role of social capital, at both individual and community levels, in promoting farmers’ participation in providing rural public goods in China. Based on the survey data of 622 farmers from 82 villages across Hebei, Shaanxi, J
Externí odkaz:
https://doaj.org/article/5a6fc08ec08342ca989f6a455720e42a
Publikováno v:
Jixie chuandong, Vol 43, Pp 92-97 (2019)
An uncoupled spatial translational parallel robotic mechanism with three degrees of freedom (DOF) is presented, which is composed of a moving platform connected to a fixed platform by three identical kinematic chains. Based on the screw theory, the k
Externí odkaz:
https://doaj.org/article/9497c32313aa4205b0ae833d78ce7fe3
Publikováno v:
Advances in Mechanical Engineering, Vol 10 (2018)
In this article, a new methodology for type synthesis of uncoupled translational parallel manipulators with 3-degrees of freedom is proposed based on actuation wrench screw theory. Mapping matrix between outputs of the moving platform and the inputs
Externí odkaz:
https://doaj.org/article/beaf6d4bd780467eab1fcd5b01c091a6
Publikováno v:
MATEC Web of Conferences, Vol 176, p 01036 (2018)
A bipolar triangular wave current pulse inverter for shallow TEM survey is described. It can generate a peak current more than 10A and the PRF of the bipolar current pulse is between 1Hz and 10kHz. The proposed inverter contains a high voltage source
Externí odkaz:
https://doaj.org/article/b67edde72a2d456385820bee325cb0fc
Publikováno v:
Information Technology & Control; 2024, Vol. 53 Issue 2, p601-618, 18p
Publikováno v:
BCP Business & Management. 30:122-131
In recent years, due to the decline in the growth of traditional export trade, cross-border e-commerce as the representative of the emerging international trade development momentum is rapid, to promote the overall foreign trade to enhance the effect
Publikováno v:
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON).
This paper is developed to present a theory research and engineering application of a high-accuracy bipolar triangular wave current pulse inverter for transient electromagnetic method (TEM) transmitting system, in which produced pulse current can be
Autor:
Furong Chen, Yifu Zhao
Publikováno v:
Sustainability
Volume 11
Issue 19
Sustainability, Vol 11, Iss 19, p 5225 (2019)
Volume 11
Issue 19
Sustainability, Vol 11, Iss 19, p 5225 (2019)
This paper investigated the determinants, especially labor transformation, and differences of technical efficiency between main and non-main grain-producing area in China based on a panel data from 30 provinces in the period of 2001&ndash
2017.
2017.