Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Ximei Zhao"'
Publikováno v:
Ecological Processes, Vol 13, Iss 1, Pp 1-10 (2024)
Abstract Background Both increasing native species diversity and reducing nutrient availability can increase the ability of native plant communities to resist alien plant invasions. Furthermore, native species diversity and nutrient availability may
Externí odkaz:
https://doaj.org/article/2aa5c6e6707c40a1a87df5536c3971b3
Publikováno v:
Land, Vol 12, Iss 7, p 1419 (2023)
To understand the distribution of the soil microbial community in natural walnut orchards at different altitude gradients (3000–3500 m) and to reveal the mechanism of the soil microbial activity in natural walnut orchards adapting to high-altitude
Externí odkaz:
https://doaj.org/article/f6541c4b6a984fd3a7275cb1413211c1
Publikováno v:
IET Power Electronics, Vol 14, Iss 4, Pp 785-796 (2021)
Abstract An adaptive backstepping complementary sliding mode control (ABCSMC) with dead‐zone parameter modification applicable to the permanent magnet linear synchronous motor is proposed in order to achieve high‐performance servo control fields.
Externí odkaz:
https://doaj.org/article/77a42c7d8e9242159544910d3375e3a3
Publikováno v:
IEEE Access, Vol 8, Pp 138456-138469 (2020)
In this paper, an intelligent adaptive jerk control (IAJC) with dynamic compensation gain for the permanent magnet linear synchronous motor (PMLSM) servo system was proposed to improve robustness and tracking performance against nonlinear and time-va
Externí odkaz:
https://doaj.org/article/2cf0ff31916b44fca0887c77a783b9ba
Publikováno v:
Frontiers in Ecology and Evolution, Vol 9 (2022)
Biochar application in reclaiming degraded soils and improving plant productivity has been recognized as a promising technology. Yet, the impacts of biochar and mixtures with compound effective microorganisms (CEM) on alfalfa growth and soil quality
Externí odkaz:
https://doaj.org/article/f685ed0d2033439d938e1fe75fadd72f
Publikováno v:
Agronomy, Vol 13, Iss 1, p 113 (2022)
The irrational use of nitrogen (N) fertilizer has become a major threat to soil quality and food security, resulting in serious ecological and environmental problems. Holistic approaches to N fertilizer application are required to maintain a high N u
Externí odkaz:
https://doaj.org/article/d28e5d30164d444190989b8c07d67ad1
Autor:
Hongyan Jin, Ximei Zhao
Publikováno v:
IEEE Access, Vol 7, Pp 126014-126024 (2019)
In this paper, an approach angle-based saturation function of modified complementary sliding mode control (MCMSC) method was proposed to overcome the influence of uncertainties such as parameter variations and external disturbances on permanent magne
Externí odkaz:
https://doaj.org/article/0286d955e0454e43ae2fc76b82f689b8
Complementary Sliding Mode Control via Elman Neural Network for Permanent Magnet Linear Servo System
Autor:
Hongyan Jin, Ximei Zhao
Publikováno v:
IEEE Access, Vol 7, Pp 82183-82193 (2019)
The permanent magnet linear servo system is usually susceptible to uncertainties, such as parameter variations, external disturbances, and friction forces. To address this problem, a complementary sliding mode control (CSMC) via Elman neural network
Externí odkaz:
https://doaj.org/article/ba221f1f9d404738872de9b9dc8322d0
Autor:
Ximei Zhao, Dongxue Fu
Publikováno v:
IEEE Access, Vol 7, Pp 180361-180372 (2019)
For the problem that the position tracking accuracy of permanent magnet linear synchronous motor (PMLSM) servo system is easily affected by uncertain factors such as parameters change, load disturbance and friction and so on, an adaptive neural netwo
Externí odkaz:
https://doaj.org/article/84403bd53c9c4d6a9c89ab019c5e8fbe
Publikováno v:
PLoS ONE, Vol 14, Iss 4, p e0215138 (2019)
The groundwater level is the main factor affecting the distribution of soil salinity and vegetation in the Yellow River Delta (YRD), China, but the response relationship between the spatial distribution of soil salt ions and the groundwater level in
Externí odkaz:
https://doaj.org/article/29b23bc0379c47869b945f5b3653b4af