Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Yu Jun, Cao"'
Publikováno v:
Journal of Integrative Agriculture, Vol 20, Iss 2, Pp 494-510 (2021)
To date, little attention has been paid to the effects of leaf source reduction on photosynthetic matter production, root function and post-silking N uptake characteristics at different planting densities. In a 2-year field experiment, Xianyu 335, a
Externí odkaz:
https://doaj.org/article/2b0f66d3b4c94f90987dd78b3458081b
Publikováno v:
Journal of Integrative Agriculture, Vol 20, Iss 2, Pp 494-510 (2021)
To date, little attention has been paid to the effects of leaf source reduction on photosynthetic matter production, root function and post-silking N uptake characteristics at different planting densities. In a 2-year field experiment, Xianyu 335, a
Autor:
Yanjie Lv, Wu Yang, Yu-jun Cao, Shao-feng Bian, Yao Fanyun, Yongjun Wang, Chunxia Li, Lichun Wang, Zhi-ming Liu, Wei Wenwen
Publikováno v:
Agricultural Water Management. 216:44-59
The evolution of canopy traits related to maize yield increases has been well documented, but the changes in the root system over decades and their relationships with the water use efficiency (WUE) and nitrogen (N) use efficiency (NUE) require furthe
Publikováno v:
Key Engineering Materials. 730:242-247
In this paper, in order to realize friction torque measurement and assembly behavior analysis of arc structure servo mechanism (ASSM), a general measurement system applied, meanwhile structural characteristics and performance of the ASSM are analyzed
Autor:
Fan Yun, Yao, Li Chun, Wang, Xin Qu, Duo, Zhi Ming, Liu, Yan Jie, Lyu, Yu Jun, Cao, Wen Wen, Wei, Yong Jun, Wang
Publikováno v:
Ying yong sheng tai xue bao = The journal of applied ecology. 30(4)
A field experiment was conducted to investigate the greenhouse gas emission at high latitude farmland in Northeast China. We monitored the greenhouse gas emission using the static chamber-gas chromatography method. Four nitrogen (N) fertilizers were
Publikováno v:
Advanced Materials Research. :1261-1265
Anti-backlash gear can improve the static transmission precision of system. Besides, the dynamic characteristics of anti-backlash gear system have a significant effect on the performance of overall mechanism, and the torsion spring preload of anti-ba
Publikováno v:
Applied Mechanics and Materials. :1652-1658
Computer-guided optical alignment technology requires adjustable lens, while such lens are rear for some optical systems due to structural limits. This essay focuses on using the compensation relations between misalignments to improve alignment accur
Publikováno v:
Applied Mechanics and Materials. :475-481
Based on present research states and new problems of current collaborative design (CD), the paper presents a solution of building Virtual PDM (VPDM) for developing a CD platform on heterogeneous CAD and PDM systems among enterprises. Firstly, VPDM de
Publikováno v:
Advanced Materials Research. :578-582
A kind of triple micro-displacement magnification mechanism was designed according to the magnification principle of lever. Introduced the magnifying principle of the mechanism, analyzed the magnify ability and the relation between magnification time
Publikováno v:
2010 International Conference On Computer Design and Applications.
Nowadays, Product structure data becomes the important exchanging data among collaborative enterprise, which establishes the relationships between parts of product. The paper brings forward a method of building Virtual PDM to solve the Product Struct