Results 31 to 40 of about 496,850 (248)

Impacts of Phase Noise on the Anti-Jamming Performance of Power Inversion Algorithm

Sensors, 2022
Power inversion (PI) is a known adaptive beamforming algorithm that is widely used in wireless communication systems for anti-jamming purposes. The PI algorithm is typically implemented in a digital domain, which requires the radio-frequency signals to ...
Minglei Zhou, Qing Wang, Fangmin He, Jin Meng   +3 more
doaj   +1 more source

STUDY OF THE PRINCIPLE OF A NOVEL HYBRID DC COMPARATOR

Electrica, 2008
The traditional controllable saturation reactor (CSR) consists of single toroidal core, DC (direct current) controlled loop (including DC controlled winding and DC biasing source) and AC (alternating current) excitation loop (including excitation winding
Li Weibo, Ma Weiming, Zhao Zhihua, Xu Jin, Xiao Huan   +4 more
doaj   +2 more sources

Calibration of RANS model constant based on data assimilation and accurate simulation of separated flow

AIP Advances, 2022
To improve the prediction accuracy of separated flow based on the Reynolds Averaged Navier–Stokes model, the model constants of the baseline Reynolds stress model are calibrated by the ensemble Kalman filter data assimilation method.
Xiliang Song, Zhongjun Yu, Chengjiang Liu, Gong Cheng   +3 more
doaj   +1 more source

Modeling and Analysis of Voltage Harmonic for Three-Level Neutral-Point-Clamped H-Bridge Inverter Considering Dead-Time

Energies, 2022
The advantages of three-level neutral-point-clamped (NPC) H-bridge inverters, such as simple topological structure, low device voltage stress, high equivalent switching frequency, and highly expansible capacity, have made them the preferred choice for ...
Wen-Jie Wu, Liang-Deng Hu, Zi-Yue Xin, Cheng Guo   +3 more
doaj   +1 more source

Fast Fault Diagnosis in Industrial Embedded Systems Based on Compressed Sensing and Deep Kernel Extreme Learning Machines

Sensors, 2022
With the complexity and refinement of industrial systems, fast fault diagnosis is crucial to ensuring the stable operation of industrial equipment.
Nanliang Shan, Xinghua Xu, Xianqiang Bao, Shaohua Qiu   +3 more
doaj   +1 more source

Research Progress on Power Visual Detection of Overhead Line Bolt Defects Based on UAV Images

Drones
In natural environments, the connecting bolts of overhead lines and power towers are prone to loosening and missing, posing potential risks to the safe and stable operation of the power system.
Xinlan Deng, Min He, Jingwen Zheng, Liang Qin, Kaipei Liu   +4 more
doaj   +1 more source

Design and Analysis of the Integrated Motor Cooling System for Shaftless Propeller

IEEE Access, 2019
In order to deal with the heat dissipation of the integrated permanent magnet motor for a certain shaftless propeller, this paper designs an automatic water-circulation cooling system.
Zhu Hao, Jin Shuanbao, Wang Dong, Wang Gongbao, Hu Pengfei   +4 more
doaj   +1 more source

Sustained Therapeutic Efficacy of Intravenous Plasminogen Concentrate in Pediatric Patients With Type 1 Plasminogen Deficiency: An Analysis of Dosing Parameters and Clinical Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar, Karen Thibaudeau, Mary Mathias, Heather McDaniel, Madlen Reschke, Klaus Tenbrock, Joseph M. Parker, Amy Shapiro   +7 more
wiley   +1 more source

A selection principle of submodule switching state vectors for switching frequency reduction in voltage self‐balancing half‐bridge modular multilevel converters

IET Power Electronics
The problem of submodule switching frequency reduction in half‐bridge modular multilevel converters (HB‐MMCs) with capacitor voltage self‐balancing control is considered and explored in this paper.
Yiyuan Zhou, Liang Qin, Shiqi Yang, Qing Wang, Kaipei Liu   +4 more
doaj   +1 more source

Optimal Design of High-Speed Double-Sided Linear Permanent Magnet Motors With Segmented Trapezoidal Magnetic Poles

IEEE Access, 2021
For the kilometer-level electromagnetic launch system, a high-speed double-sided linear permanent magnet (PM) linear motor is presented in this paper.
Dunhuang Xu, Dong Wang, Ming Yan
doaj   +1 more source