Results 31 to 40 of about 488,337 (248)

Design and Analysis of a Bearing-Integrated Rotary Transformer

Energies
In this paper, a bearing- and transformer-integrated electric excitation synchronous motor excitation system (bearing-integrated rotary transformer) is proposed to support the motor rotor and energy transmission of excitation systems.
Xiaoou Fan, Shaohua Ma, Dezhi Chen, Chaoqun Liu   +3 more
doaj   +1 more source

Simulation research on excitation system of multi-electrode blood flow meter

Journal of Hebei University of Science and Technology, 2019
In order to monitor human blood flow rate and flow velocity distribution, a blood flow meter based on multi-electrode electromagnetic measurement has been proposed to measure the flow velocity of the arteriovenous blood by obtaining the induced voltage ...
Yuyang ZHAO, Dongyu WAN, Jian YAO, Xueli WU   +3 more
doaj   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Modification of the implementation of the underexcitation limiter within the generator excitation system of Unit B1 at TPP "Nikola Tesla B" [PDF]

Zbornik Radova: Elektrotehnički Institut "Nikola Tesla"
This paper investigates a grid outage event at TPP "Nikola Tesla B" Unit B1 and analyzes the excitation system's response. Based on this analysis, modifications were made to the underexcitation limiter within the excitation system.
Klasnić Ilija, Veinović Slavko, Joksimović Dušan, Ivanović Luka, Radojičić Bojan, Brdarević Miloš   +5 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Frequency-Diverse Metasurface Antenna With Hybrid Bunching Methods for Coincidence Imaging

IEEE Access, 2020
A frequency-diverse metasurface antenna with hybrid bunching methods for coincidence imaging is proposed in this paper. The hybrid frequency-diverse bunching metasurface antenna contains an excitation system, a frequency-diverse metasurface and a double ...
Mengran Zhao, Shitao Zhu, Huilin Huang, Xiaoming Chen, Juan Chen, Anxue Zhang   +5 more
doaj   +1 more source

Coded Excitation for Pulse-Echo Systems

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2017
Pulse compression has been used for decades in radar, sonar, medical, and industrial ultrasound. It consists in transmitting a modulated or coded excitation, which is then cross-correlated with the received signal such that received echoes are time compressed, thereby increasing their intensity and hence the system resolution and signal-to-noise ratio (
Julio Isla, Frederic Cegla
openaire   +4 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Modelling of patient-specific Purkinje activation based on measured ECGs

Current Directions in Biomedical Engineering, 2017
The Purkinje system is part of the fast-conducting ventricular excitation system. The anatomy of the Purkinje system varies from person to person and imposes a unique excitation pattern on the ventricular myocardium, which defines the morphology of the ...
Kahlmann Willi, Poremba Emanuel, Potyagaylo Danila, Dössel Olaf, Loewe Axel   +4 more
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source