Results 21 to 30 of about 715,538 (308)

Voltage and frequency instability in large PV systems connected to weak power grid

Frontiers in Energy Research, 2023
The voltage and frequency control of photovoltaic (PV) systems are influenced by coupled nonlinear factors. It has been discovered that frequency control stability is threatened by voltage regulation methods in PV systems.
Qianjin Zhang, Qi Hu, Siwei Sun, Dikui Mei, Sucheng Liu, Xiaodong Liu   +5 more
doaj   +1 more source

Landholders’ Involvement in the Compulsory Acquisition of Land and Compensation Process in Bauchi, Nigeria [PDF]

, 2019
This study aims to assess landholder’s involvement in the compulsory acquisition of land on their satisfaction with the compensation process in Bauchi, Nigeria, to identify areas of weakness in the process and propose areas of improvement.
Adekunle, Muhammad Usman, Bello, Hadiza Tijjani, Idris, Ibrahim, Muhammad, Maryam Salihu, Oluwole, Mathew Oyewole   +4 more
core   +2 more sources

A frequency offset compensation method based on all phase FFT amplitude

物联网学报, 2022
Distance measurement is an important part of the wireless location technology.The ranging accuracy of millimeter wave based distance measurement depends on the frequency estimation accuracy of beat signals from the targets, but the existing frequency ...
Yingjie ZHU, Wuxiong ZHANG, Huiyue YI, Hui XU   +3 more
doaj   +2 more sources

A Fast-Transient Output Capacitor-Less Low-Dropout Regulator Using Active-Feedback and Current-Reuse Feedforward Compensation

Energies, 2018
In this paper, output capacitor-less low-dropout (LDO) regulator using active-feedback and current-reuse feedforward compensation (AFCFC) is presented. The open-loop transfer function was obtained using small-signal modeling.
Eun-Taek Sung, Sangyong Park, Donghyun Baek   +2 more
doaj   +1 more source

Frequency-Weighted Model Reduction with Applications to Structured Models [PDF]

, 2007
In this paper, a frequency-weighted extension of a recently proposed model reduction method for linear systems is presented. The method uses convex optimization and can be used both with sample data and exact models.
Murray, Richard M., Sandberg, Henrik
core   +1 more source

Hybrid Cascode Compensation With Hybrid Q-Factor Control for Three-Stage Unconditionally Stable Amplifiers

IEEE Access
This paper presents Hybrid Cascode Compensation with Hybrid Q–Factor Control (HCCHQ), for three-stage feedback operational transconductance amplifiers (OTA) capable of handling any load capacitor ( $C_{L}$ ).
Hamed Aminzadeh, Mohammad Mehdi Valinezhad, Alfio Dario Grasso   +2 more
doaj   +1 more source

Diversity techniques for blind channel equalization in mobile communications [PDF]

, 1997
A blind algorithm for channel distortion compensation is presented which can be employed in spatial or temporal diversity receivers. The proposed technique can be used in frequency selective and frequency flat fading mobile channels, using burst ...
Lamarca Orozco, M. Meritxell, Vázquez Grau, Gregorio   +1 more
core   +1 more source

Novel Optimization Approach in Ultrasonic Machining: Unilateral Compensation for Resonant Vibration in Primary Side

IEEE Access, 2019
Resonant frequency and impedance matching have great significance for the vibration performance and online monitoring of the rotary ultrasonic machining. Network compensation is a typical solution to match the resonant frequency and the impedance between
Jianguo Zhang, Zhili Long, Can Wang, Feng Ren, Yangming Li   +4 more
doaj   +1 more source

Loss compensation in Metamaterials through embedding of active transistor based negative differential resistance circuits

, 2012
This paper presents an all-electronic approach for loss compensation in metamaterials. This is achieved by embedding active-transistors based negative differential resistance (NDR) circuits in each unit cell of the metamaterial lattice.
Auzanneau, Boardman, Chen, Craninckx, Dong, Hrabar, Jelinek, Pendry, Pendry, Popa, Ramakrishna, Sameer Sonkusale, Schurig, Shelby, Shrekenhamer, Smith, Soukoulis, Tretyakov, Veselago, Wang, Wangren Xu, Willie J. Padilla, Yuan   +22 more
core   +1 more source

Precision and Stability of a Space Laser Ranging Technology Based on Time-Frequency Co-Transfer

Photonics
This paper presents an innovative space laser ranging technology that utilizes time-frequency co-transfer, effectively meeting the critical demand for precision in space laser ranging applications.
Shaobo Li, Lei Zhang, Dongjie Wang, Yuhan Hu, Mingyang Lv, Zhe Li, Yihan Li   +6 more
doaj   +1 more source