Results 11 to 20 of about 24,705,416 (306)
Impedance Model Study of Duct Sound Liner under High Speed Airflow
Kongzhi Yu Xinxi Jishu, 2022 Micro perforation plate (MPP) sound liner is a very effective method to control pipe noise in high-speed airflow environment based on the principle of Helmholtz resonator. It generally has single layer, double-layer or even multi-layer structure.
YAN Meng +3 more
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Estimates of Acausal Joint Impedance Models [PDF]
IEEE Transactions on Biomedical Engineering, 2012 Estimates of joint or limb impedance are commonly used in the study of how the nervous system controls posture and movement, and how that control is altered by injury to the neural or musculoskeletal systems. Impedance characterizes the dynamic relationship between an imposed perturbation of joint position and the torques generated in response.
David T. Westwick, Eric J. Perreault
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Fractal and Fractional, 2021 The passive electrical properties of a biological tissue, referred to as the tissue bioimpedance, are related to the underlying tissue physiology. These measurements are often well-represented by a fractional-order equivalent circuit model, referred to ...
T. Freeborn, Shelby Critcher
semanticscholar +1 more source
Impedance Matching-Based Power Flow Analysis for UPQC in Three-Phase Four-Wire Systems
Energies, 2021 Different from the extant power flow analysis methods, this paper discusses the power flows for the unified power quality conditioner (UPQC) in three-phase four-wire systems from the point of view of impedance matching.
Xiaojun Zhao +5 more
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IEEE Access, 2020 The sequence impedance of modular multilevel converters (MMC) is the premise to analyze the stability of MMC-based high voltage direct current (HVDC) system.
Taiyuan Yin +7 more
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IET Cyber-systems and Robotics, 2023 This study addresses two issues about the interaction of the upper limb rehabilitation robot with individuals who have disabilities. The first step is to estimate the human's target position (also known as TPH).
Brahim Brahmi +2 more
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Energies, 2016 Wireless power transfer (WPT) is greatly affected when the transmission channel is surrounded by non-ferromagnetic metallic objects and the alternating magnetic field interacts with the metal conductor, which is more of an issue in wirelessly charged ...
Linlin Tan +5 more
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Stabilized Control for Power Electronics Transformer-Based Grid-Tied Inverter System
IEEE Access, 2023 The stability of a grid-tied inverter system will be compromised in weak grid conditions. In order to address this problem, researchers have proposed using a power electronics transformer (PET) to connect inverters and the grid.
Xiangbing Wang +4 more
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IET Systems Biology, 2020 The skin is a complex biological tissue whose impedance varies with frequency. The properties and structure of skin changes with the location on the body, age, geographical location and other factors. Considering these factors, skin impedance analysis is a sophisticated data analysis.
Dhruba Jyoti, Bora, Rajdeep, Dasgupta
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A Generalized Input Impedance Model of Multiple Active Bridge Converter
IEEE Transactions on Transportation Electrification, 2020 The electrical power distribution system (EPDS) of the more electric aircraft (MEA) is a fundamental component that needs to be efficient and resilient. The commonly considered architectures feature separate buses to achieve separation between different ...
Jiajun Yang +5 more
semanticscholar +1 more source