Results 81 to 90 of about 354,332 (193)

A Comprehensive Review of Fault‐Current Limiter Technologies for Smart and Resilient Power Systems

Energy Science &Engineering, EarlyView.
This review compares superconducting, solid‐state, and hybrid fault‐current limiters (FCLs) for modern alternating current, direct current, and hybrid grids. It shows that optimal FCL selection depends on fault characteristics, network configuration, voltage level, protection coordination, and resilience requirements rather than on a universally ...
Abdelrahman Farghly, Eslam Essam, Hilmy Awad, Samia Abdelfatah, Walid Issa, Abdallah M. Hamada   +5 more
wiley   +1 more source

A novel self excited hybrid brushless wound rotor synchronous machine with consequent poles

Scientific Reports
This manuscript presents a novel consequent pole hybrid brushless wound rotor synchronous machine (CPH-BLWRSM) topology. Compared to existing BLWRSM, the proposed topology mainly exploits the inherent subharmonic component (SHC) field excitation to ...
Muhammad Ahsan ul Haq, Haroon Farooq, Rehan Liaqat, Zafar A. Khan, Abdullah Altamimi   +4 more
doaj   +1 more source

Photocurable Smart Materials for Femtosecond Laser Micro/Nano‐3D/4D Printing: Toward Interdisciplinary Applications

Interdisciplinary Materials, EarlyView.
This review examines intelligent microsystems fabricated via Fs‐laser two‐photon polymerization, covering design, fabrication compatibility, and actuation methods. It highlights applications in actuators, sensors, micromachines, and soft microrobots, while stressing advances in materials, structures, and system integration.
Chang‐Xu Li, Yu‐Qing Liu, Wei‐Jian Zhong, Dong‐Dong Han, Yong‐Lai Zhang   +4 more
wiley   +1 more source

Brushless Synchronous Machine With Dual-Frequency Inverter for High Torque and Low Ripple Operation

IEEE Access
In this paper, a novel brushless synchronous machine topology is introduced with the integration of a double-frequency inverter system, which plays a pivotal role in generating a sub-harmonic magnetomotive force (MMF) that significantly enhances torque ...
Hafiz Mudassir Munir, Qasim Ali, Jose Rodriguez, Mohamed Abdelrahem   +3 more
doaj   +1 more source

Dissecting the angiogenic mechanism of pachychoroid polypoidal choroidal vasculopathy

iMeta, EarlyView.
A prognosis‐oriented classification system was established to distinguish Pachy PCV from Non‐pachy PCV using a large multicenter dataset. Comparative plasma multi‐omics profiling of Pachy PCV, Non‐pachy PCV, and normal controls revealed unique upregulation of the fluid shear stress and atherosclerosis (FSS‐AS) and HIF‐1 signaling pathways in Pachy PCV.
Xinyu Zhao, Tiantian Cheng, Wenfei Zhang, Xingwang Gu, Qing Zhao, Yaning Chen, Lihui Meng, Jiaqi Zhang, Bintao Qiu, Lili Li, Shiyu Cheng, Zicheng Wang, Chuting Wang, Yuelin Wang, Zuyi Yang, Zhengming Shi, Ye Guo, Shengzhi Liu, Youxin Chen   +18 more
wiley   +1 more source

Dynamic Analysis of Electrically Assisted Turbocharger Rotor Considering Contact Effects in Nut Structures

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The rotor system of an electrically assisted turbocharger (EAT) is composed of multiple shaft components; The nonlinear connection and contact effects make it difficult to determine the system dynamic characteristics. To improve the modeling accuracy of EAT rotor system and evaluate the influence of contact between multi‐axis components and ...
Wenchao Liang, Shuqian Cao, Xiaolin Cao, Mingyue Hu, Yanhong Kang, Tianyou Wang   +5 more
wiley   +1 more source

Design and analysis of a bearingless fixed-pole rotor induction motor [PDF]

, 2018
© 2018 IEEE. Both torque winding magnetic field and suspension winding magnetic field induce currents in the rotor in conventional bearingless induction motor (BIM).
Yang, Z, Ye, X, Zhu, J, Guo, Y
core   +1 more source

A dual-mode dual-stator hybrid rotor synchronous and vernier machine for variable speed applications

Scientific Reports
This paper presents the design and electromagnetic performance evaluation of a Dual-Mode Dual-Stator Hybrid-Rotor Synchronous and Vernier Machine (DMDS-HRSVM) developed for automatic washing-machine applications.
Sajad Ali, Qasim Ali, Hafiz Mudassir Munir, Hasan A. Zidan   +3 more
doaj   +1 more source

The generated power of multipole induction generator with secondary winding on the stator

Electrical, Control and Communication Engineering, 2009
This paper posses the construction of induction generator, which has the ability to operate at a low rotation speed. This generator can be applied for directly driven turbine without using the gearbox. The generator is multi pole with all of the windings
Guntis Diļevs, Edgars Jakobsons
doaj   +1 more source

Analysis of Mechanical‐Electrical‐Hydraulic Coupled Vibration Response Characteristics of Thermal Control Circulating Pumps Supported by Water‐Lubricated Bearings

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The operational reliability of thermal control circulation pumps is significantly restricted by the multi‐physics coupled environment. To reveal the vibration transmission mechanisms and dynamic response characteristics under multi‐field coupled excitations, a multi‐DOF coupled dynamic representation of the overall system, incorporating the ...
Jianfeng Luo, Liukai Hou, Yutao Zou, Kaiyuan Hao, Guangwu Zhou   +4 more
wiley   +1 more source