Results 51 to 60 of about 29,097 (268)
EnergiesThe Onshore Wind Power All-DC Generation System (OWDCG) is designed to integrate with renewable energy sources by modifying the grid structure. This adaptation supports the grid infrastructure and addresses the challenges of large-scale wind power AC ...
Tao Wang +3 more
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida +6 more
wiley +1 more source
Impedance Modeling and SSR Analysis of DFIG Using Complex Vector Theory
IEEE Access, 2019 Based on the complex vector theory, a more comprehensive doubly-fed induction generator (DFIG) impedance model under series compensated network, taking both outer loops and phase-locked loop (PLL) dynamic into consideration, is developed in stationary ...
Xueguang Zhang +3 more
doaj +1 more source
IEEE Access, 2020 Impedance-based stability criterion is effective for analyzing the oscillation phenomenon in modular multilevel converter-based high-voltage DC (MMC-HVDC) transmission system, and modeling MMC impedance is the critical step.
Taiyuan Yin +6 more
doaj +1 more source
Discrete impedance method for the oscillation analysis of pumped-storage power plants
Energy Reports, 2023 As the proportion of new energy increases in modern power systems, pumped-storage power plant attaches significance to balancing power supply and demand. Its operational stability has attracted extensive attention.
Yang Zheng +5 more
doaj +1 more source
Electrode modelling: The effect of contact impedance [PDF]
ESAIM: Mathematical Modelling and Numerical Analysis, 2016 The most realistic model for current-to-voltage measurements of electrical impedance tomography is the complete electrode model which takes into account electrode shapes and contact impedances at the electrode/object interfaces. When contact impedances are small, numerical instability can be avoided by replacing the complete model with the shunt model ...
Dardé, Jérémi, Staboulis, Stratos
openaire +3 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola +4 more
wiley +1 more source
IEEE Open Journal of Power ElectronicsDue to their enhanced reliability and efficiency, hybrid power generation systems (HPGSs) integrating wind turbine generators, photovoltaics, and battery energy storage systems have gained acceptance for utility-scale applications.
Moetasem Ali +1 more
doaj +1 more source
Energy Reports, 2023 With a large amount of new energy access and the wide application of high voltage direct current (HVDC) transmission technology based on line commutated converter (LCC), it is of great significance to study the impedance frequency characteristics of the ...
Maolan Peng +6 more
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono +7 more
wiley +1 more source