Results 21 to 30 of about 6,579 (136)

Pitch Angle Control for Variable Speed Wind Turbines

Renewable Energy and Sustainable Development, 2015
.Pitch control is a practical technique for power regulation above the rated wind speed it is considered as the most efficient and popular power control method. As conventional pitch control usually use PI controller, the mathematical model of the system
Mouna Ben Smida, Anis Sakly
doaj   +1 more source

Application of permanent magnet synchronous generators within small-scale hydropower systems [PDF]

Journal on Processing and Energy in Agriculture, 2010
In the new millennium, the demand for electric power is expected to increase more rapidly. Hydroelectric power plants using hydro potential of small rivers are becoming one of the key issues in the energy sector. Hydro energy is one of the most important
Reljić Dejan, Čorba Zoltan, Dumnić Boris   +2 more
doaj  

Modeling and Robust Control of a Grid Connected Direct Driven PMSG Wind Turbine By ADRC

Advances in Electrical and Electronic Engineering, 2018
In this paper, we present the modeling and control of a grid connected Variable Speed Wind Energy Conversion System (VS-WECS) based on a Direct Driven Permanent Magnet Synchronous Generator (DD-PMSG).
Imad Aboudrar, Soumia El Hani, Hamza Mediouni, Ahmed Aghmadi   +3 more
doaj   +1 more source

The Impact of Maturation Medium Supplemented with PMSG and HCG Hormones on In vitro Maturation of Ovine Oocytes [PDF]

Journal of Applied Veterinary Sciences
This investigation aimed to assess the dose-dependent impact of the pregnant mare serum gonadotropin (PMSG) on the in vitro maturation of sheep oocytes and the effect of combining the best dose with the human chorionic gonadotropin (hCG), which is a cost-
Fatma Baiomy, Ahmed Kamel, Abdelhadi Hussein, Sabry Hassanin   +3 more
doaj   +1 more source

Different estrous induction methods during the non-breeding season in Kivircik ewes

Veterinární Medicína, 2006
The efficiency of medroxyprogesterone acetate (MAP) sponges in combination with either pregnant mare serum gonadotrophin (PMSG) or cloprostenol (PGF2α) for inducing and synchronizing the estrous cycle in non-lactating Kivircik ewes was investigated ...
I. Dogan, Z. Nur
doaj   +1 more source

Compact 9dBEs Enable Efficient and Precise Genome Editing in Mammalian Cells and In Vivo

Advanced Science, EarlyView.
As a compact type II‐D system, the Cas9d‐based platform holds great potential for in vivo applications. Through rational engineering, its derived base editors (9dBEs) enable efficient disease modeling while facilitating single‐vector AAV delivery for in vivo genome editing. These miniature tools offer a robust strategy for basic research and biomedical
Qingquan Xiao, Zhijin Tian, Luqi Weng, Kun Xu, Dingyi Han, Zhaowei Wu, Junnan Li, Shangpu Li, Qijing Zhang, Xiaohui Zhao, Guoling Li, Yinghui Wei, Zhen Gu   +12 more
wiley   +1 more source

Phase Separation of SF3B1 Serves as a Critical Post‐Transcriptional Regulator During Early Mouse Embryogenesis

Advanced Science, EarlyView.
Phase separation of SF3B1 acts as a key regulatory mechanism for dynamic alternative splicing throughout early mouse embryogenesis. Its absence triggers extensive splicing errors, which induce persistent DNA damage, defective cell cycle progression, and failed cell lineage commitment, and ultimately hinder the normal growth and development of ...
Kang Zhao, Ting‐Yu Han, Yan‐Li Cheng, Yi‐Dan Zhang, Yu‐Wei Zhang, JinJian Guo, ShaoJun Zhang, WenZe Huang, Jing Zhang, Pei‐Yu Liao, Ying Xin, ChuanChen Chu, Qing‐Yuan Sun, ZhiZhen Liu, Xiang‐Hong Ou, Jun Xie   +15 more
wiley   +1 more source

Fractional Order Sliding Mode Control of PMSG-Wind Turbine Exploiting Clean Energy Resource

International Journal of Renewable Energy Development, 2019
The extensive application of permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS) has attracted growing interests of power researchers on its control and operation. This paper aims to propose a kind of fractional order
Muhammad Waseem Khan, Jie Wang, Linyun Xiong, Meiling Ma   +3 more
doaj   +1 more source

Damping Torque Analysis of the PMSG-Based WT with Supplementary Damping Control for Mitigating Interarea Oscillations

International Transactions on Electrical Energy Systems, 2022
This study presents a comprehensive analysis of the impact that a supplementary damping controller of the permanent magnet synchronous generator (PMSG)-based wind turbine (WT) has on low-frequency oscillation (LFO) damping.
Yanan Yang, Yujun Li, Xiaotian Yuan, Jiapeng Li, Zhengchun Du   +4 more
doaj   +1 more source

WFS1 Deficiency Impairs PIAS4‐Associated SUMOylation and Increases Ubiquitin‐Mediated Spermatogenesis‐Related Protein Degradation Leading to Testicular Male Infertility

Advanced Science, EarlyView.
The findings establish a critical role for WFS1 in human male fertility. Mechanistically, WFS1 interacts with PIAS4 to promote the SUMOylation of key spermatogenesis‐associated proteins, which in turn competitively inhibits their K48‐linked ubiquitin‐mediated degradation during spermatogenesis.
Yunchuan Tian, Guicheng Zhao, Xiang Wang, Xinyao Tang, Gan Shen, Tiechao Ruan, Chuan Jiang, Shikun Zhao, Jincheng Zhang, Xinyue Cui, Liangchai Zhuo, Jun Ma, Yihong Yang, Tingting Lin, Ying Shen   +14 more
wiley   +1 more source