Results 101 to 110 of about 7,302,077 (339)

Flexible Wideband Microstrip-Slotline-Microstrip Power Divider and its Application to Antenna Array

open access: yesIEEE Access, 2019
In the satellite microwave power transmission (MPT) system, antenna arrays are usually adopted for a higher gain. For the passive wideband antenna array, wideband power dividers are essential when the feed network is constructed.
Bing Xiao   +4 more
doaj   +1 more source

Online Network Impedance Spectrometer for the Medium-Voltage Level

open access: yes, 2018
The network impedance is an essential parameter for power-quality, stability and control design considerations of power systems. The frequency characteristic of the impedance often includes distinct resonances which may also vary over time due to ...
Grumm, Florian   +5 more
core   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Integrated Full-Frequency Impedance Modeling and Stability Analysis of the Train-Network Power Supply System for High-Speed Railways

open access: yesEnergies, 2018
To investigate the harmonic resonance, harmonic instability and low-frequency oscillation phenomena in high-speed railways, this paper proposes a full-frequency impedance model of the train-traction network system (simplified as ‘train-network ...
Xinyu Zhang   +4 more
doaj   +1 more source

Resonant network design methodology based on two-port network analysis considering load impedance variation

open access: yes, 2019
This paper proposes a new design procedure of the resonant network of power converters. When designing power converters, the load impedance varies over a wide range rather than having a fixed value.
Euihoon Chung   +3 more
core   +1 more source

Decoupled Multi-Port Impedance Modelling Method of Transmission Network in Inverter-Fed Power Plant [PDF]

open access: yes, 2018
This paper presents a decoupled multi-port impedance modelling method of transmission network for stability analysis of inverter-fed power plant. The decoupled three-port and four-port impedance model are first derived.
Yanbo Wang   +5 more
core   +1 more source

Adaptor protein CIN85 potentiates the motility of osteosarcoma cells via the Akt/mTOR and MMP2‐COL3A1 axis

open access: yesMolecular Oncology, EarlyView.
CIN85 is highly expressed in osteosarcoma, particularly in metastatic lesions. Its overexpression increases cell migration and Matrigel invasion, while silencing CIN85 suppresses these behaviors. Transcriptome analysis shows that CIN85 regulates MMP2, COL3A1, and Akt/mTOR signaling. Targeting these pathways reverses CIN85‐induced motility, highlighting
Iryna Horak   +10 more
wiley   +1 more source

An AI-based neural network approach for real-time monitoring of water management related PEM fuel cells degradation

open access: yesEnergy Conversion and Management: X
In this study, the evaluation and classification of fuel cell degradation mechanisms are addressed by using impedance data. The focus is on water management related degradation trends that affect the healthy performance of polymer electrolyte membrane ...
Oliver Schopen   +3 more
doaj   +1 more source

Impedence Control for Variable Stiffness Mechanisms with Nonlinear Joint Coupling

open access: yes, 2008
The current discussion on physical human robot interaction and the related safety aspects, but also the interest of neuro-scientists to validate their hypotheses on human motor skills with bio-mimetic robots, led to a recent revival of tendondriven ...
Hirzinger, Gerd   +4 more
core  

IMPEDANCE IMAGE RECONSTRUCTION WITH ARTIFICIAL NEURAL NETWORK IN ELECTRICAL IMPEDANCE TOMOGRAPHY

open access: yesEuropean Journal of Technic, 2019
Electrical impedance tomography views the electrical properties of the objects by injecting current with surface electrodes and measuring voltages. Then using a reconstructing algorithm, from the measured voltage-current values, conductivity distribution of the object calculated.
openaire   +4 more sources

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