Results 31 to 40 of about 313,813 (166)

Annular Electromagnetic Generator for Harvesting Ocean Wave Energy

Journal of Marine Science and Engineering, 2023
To sustainably power ocean sensors by harvesting ocean wave energy, an annular electromagnetic generator (A-EMG) based on the principle of Faraday electromagnetic induction is proposed in this paper.
Chunjie Wang, Linghao Guo, Peng Chen, Qiang Fu, Lin Cui   +4 more
doaj   +1 more source

A novel DC‐link voltage synchronous control with enhanced inertial capability for full‐scale power conversion wind turbine generators

IET Renewable Power Generation
The new power system is characterized by high penetration of renewable energy sources and a high proportion of power electronics (namely, double‐high).
Yao Qin, Han Wang, Dangsheng Zhou, Zhenyan Deng, Jianwen Zhang, Xu Cai   +5 more
doaj   +1 more source

Determination of Critical Point of Particle Migration Direction in a Confined Shear Flow of Giesekus Fluids

Energies, 2023
Migration of a particle in a confined shear flow of Giesekus fluids is investigated numerically with the method of direct forcing/fictitious domain. We focus on the migration direction for the particle with initial lateral position y0 and determination ...
Zhenna Li, Bingrui Liu, Jianzhong Lin
doaj   +1 more source

Enhanced Grid-Connected Phase-Locked Loop Based on a Moving Average Filter

IEEE Access, 2020
Moving average filter (MAF)-based phase-locked loops (PLLs) have received considerable attention in recent years due to their attractive features. Indeed, they are able to completely eliminate the unwanted effect of harmonics, dc offset, and unbalanced ...
Cong Liu, Jiayan Jiang, Jianguo Jiang, Zhongzheng Zhou   +3 more
doaj   +1 more source

Transmission Power Control with the Guaranteed Communication Reliability in WSN

International Journal of Distributed Sensor Networks, 2015
In a wireless sensor network, sensor nodes are deployed in an ad hoc fashion and they deliver data packets using multihop transmission. However, transmission failures occur frequently in the multihop transmission over wireless media. Thus, a loss recovery mechanism is required to provide end-to-end reliability. In addition, because the sensor nodes are
Dae-Young Kim 0001, Zilong Jin, Jungwook Choi, Ben Lee, Jinsung Cho   +4 more
openaire   +3 more sources

Research on Theoretical Model of Dynamic Bulk Modulus of Gas-Containing Hydraulic Oil

IEEE Access, 2019
The bulk modulus of the gas-containing hydraulic oil is an important indicator reflecting its compressibility, directly affecting the stability, accuracy, rapidity, and reliability of the fluid transmission system.
Xiaoming Yuan, Xuan Zhu, Chu Wang, Lijie Zhang   +3 more
doaj   +1 more source

Nonlinear Dynamics of Adaptive Gun Head Jet System of Fire-Fighting Monitor

IEEE Access, 2020
The working medium of the adaptive gun head jet system of fire-fighting monitor is generally water containing a little bit of air. During the operation, the pressure pulsation of the fluid will cause the fluctuation of the equivalent stiffness of the gas-
Xiaoming Yuan, Xuan Zhu, Chu Wang, Lijie Zhang   +3 more
doaj   +1 more source

Research on Acceleration Performance Optimization of Large Inertia Hydraulic Actuator Based on Main Valve Input Shaping

Machines, 2022
In order to optimize the acceleration performance of a large inertia hydraulic actuator, this paper proposes a main valve input shaping control strategy, which makes the valve flow supply match the load-control demand by adjusting the main valve flow ...
Wenbo Fu, Xiaoming Yuan, Yongquan Li, Lijie Zhang   +3 more
doaj   +1 more source

Practical control of transmission power for Wireless Sensor Networks [PDF]

2012 20th IEEE International Conference on Network Protocols (ICNP), 2012
Transmission power control (TPC) has the potential to reduce power consumption in Wireless Sensor Networks (WSNs). However, despite a multitude of existing protocols, they still face significant challenges in real-world deployments. A practical TPC protocol must be robust against complex and dynamic wireless properties, and efficient for resource ...
Yong Fu, Mo Sha 0001, Gregory Hackmann, Chenyang Lu 0001   +3 more
openaire   +1 more source

Remaining Useful Life Prediction Based on the Bayesian Regularized Radial Basis Function Neural Network for an External Gear Pump

IEEE Access, 2020
A remaining useful life (RUL) prediction method for an external gear pump is proposed by Bayesian regularized radial basis function neural network (Trainbr-RBFNN).
Rui Guo, Yongtao Li, Lijiang Zhao, Jingyi Zhao, Dianrong Gao   +4 more
doaj   +1 more source