Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Pengyun Song"'
Publikováno v:
Advances in Mechanical Engineering, Vol 15 (2023)
The gas film of the carbon dioxide (CO 2 ) spiral groove dry gas seal (S-DGS) is less than 3 μm during the startup process, and its opening stability is directly related to the operating performance of S-DGS. The finite difference method is employed
Externí odkaz:
https://doaj.org/article/18b1b244098c45028b64c68472192d05
Publikováno v:
Sensors, Vol 23, Iss 1, p 496 (2023)
In the working process of the gas bearings, the unbalanced force of the rotor will increase nonlinearly with the increase in the rotating speed, resulting in an increase in the rotor’s vibration amplitude. On the other hand, with the increase in th
Externí odkaz:
https://doaj.org/article/867f2609d34b4489a68d9154ca51cdb1
Autor:
Shujie Zhang, Wei Chen, Laibo Song, Xiaohong Wang, Weilun Sun, Pengyun Song, Ghazala Ashraf, Bo Liu, Yuan-Di Zhao
Publikováno v:
Sensors and Actuators Reports, Vol 3, Iss , Pp 100042- (2021)
In recent years, the intensive studies have been devoted to nanopores due to their unique charge transport properties including ion permselectivity, ion concentration polarization, and ionic current rectification (ICR). Based on ICR, the analytical a
Externí odkaz:
https://doaj.org/article/abf63ee32698422994d604d95e57bb0c
Publikováno v:
Machines, Vol 10, Iss 12, p 1206 (2022)
In the motor drive system of electric vehicles, there are some nonlinear factors, such as the deadtime and the conduction voltage drop of switching devices, which will generate low-order harmonics of the stator current and the torque ripple. The freq
Externí odkaz:
https://doaj.org/article/530a914f58c74a758b39be3fa2868000
Publikováno v:
Machines, Vol 10, Iss 11, p 1104 (2022)
In order to reduce the switching loss and cost, as well as improve the reliability of the induction motor (IM) drive system, the technology involving the three-phase current reconstruction of 60° discontinuous pulse width modulation (DPWM2) is studi
Externí odkaz:
https://doaj.org/article/81290380024a4f10b3704e5739f688c7
Publikováno v:
Machines, Vol 10, Iss 10, p 922 (2022)
In the current source inverter (CSI)-fed inductor motor (IM) drive system, DC-bus inductance and AC-filter capacitance have a direct impact on the dynamic response speed, power quality and power density. In addition, due to the addition of filter cap
Externí odkaz:
https://doaj.org/article/d61fb97fde0c4208bec81f01a5b34648
Publikováno v:
Energies, Vol 12, Iss 14, p 2665 (2019)
To coordinate multiple power sources properly, this paper presents an optimal control strategy for a fuel cell/battery/supercapacitor light rail vehicle. The proposed strategy, which uses the firefly algorithm to optimize the equivalent consumption m
Externí odkaz:
https://doaj.org/article/1616f067e51e4b159482c06822691e00
Publikováno v:
Industrial Lubrication and Tribology. 75:406-414
Purpose This study aims to acquire the influence mechanism of gas film adaptive adjustment (GFAA) acted on the dynamic characteristics of spiral groove dry gas seal (S-DGS) and then propose a sealing stability enhancement measure. Design/methodology/
Autor:
Peng Xu, Huazhang Wang, Gang Yin, Qin Tao, Chanlin Yi, Chunbo Li, Xiabing Zhang, Cuihua Luo, Fali Li, Yajing Si, Dezhong Yao, Pengyun Song, Peiyang Li
Publikováno v:
Cogn Neurodyn
Brain network analysis is one efficient tool in exploring human brain diseases and can differentiate the alterations from comparative networks. The alterations account for time, mental states, tasks, individuals, and so forth. Furthermore, the change
Autor:
Tao Liu, Pengyun Song
Publikováno v:
Advances in Social Science and Culture. 5:p57
As a new theory of cultural heritage protection and research, cultural routes emphasize the integrity of culture and pay more attention to the interaction and integration between cultural communities along the route. The Ancient Tea-Horse Road is an