Results 51 to 60 of about 12,744,689 (299)
Overvoltage Crowbar Protection Based on Passive Power Supplied Control Unit
Power Electronics and DrivesThe increase in the involvement of renewable energy sources results in a high rate of semiconductor power converter applications. The power converters provide interconnections of DC microgrids with AC distribution lines.
Strossa Jan +5 more
doaj +1 more source
IET Renewable Power Generation, 2023 Cascaded H‐bridge power electronic transformers (CHB‐PET) can efficiently connect AC/DC distribution networks, realizing power transmission and electric energy conversion.
Yongfan Guo +3 more
doaj +1 more source
Liver organoids: modelling complexity in homeostasis and disease
FEBS Letters, EarlyView.Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley +1 more source
FEBS Letters, EarlyView.This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee +2 more
wiley +1 more source
Active power decoupling and controlling for single-phase FACTS device
The Journal of Engineering, 2019 Single-phase FACTS device has a bulky and short-life electrolytic capacitor to absorb the ripple pulsating at twice of the line frequency in DC side, resulting in lower power density. This paper introduced a structure of three-phase bridge which added an
Junmin Zhang +4 more
doaj +1 more source
Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry
FEBS Letters, EarlyView.EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri +5 more
wiley +1 more source
A NOVEL CASCADED H- BRIDGE MULTILEVEL INVERTER BASED ON OPTIMAL PWM TECHNIQUE
Electrica, 2013 In this paper, a novel cascaded H- bridge multilevel inverter has been proposed using less number of switches. A standard cascaded multilevel inverter requires 4h number of switches for (2h + 1) levels whereas h is the number of dc sources. This proposed
A. MAHESWARI, I. GNANAMBAL
doaj +2 more sources
Family Medicine and Community Health, 2019 Human papillomavirus (HPV) vaccination campaigns to prevent cervical cancer are being considered and implemented in countries around the world. While vaccination will protect future generations, it will not help the millions of women currently infected ...
William Cherniak +8 more
doaj +1 more source
Underground Space, 2023 This paper presents a case study of deep excavation adjacent to an existing bridge in karst region of Guangzhou city, China. The movements of retaining structures, settlements of surrounding ground and pipelines, and the responses of bridge piles were ...
Yubing Yang +7 more
doaj +1 more source
A modified H-bridge multilevel inverter for photovoltaic system
IEICE Electronics Express, 2010 This paper presents a modified H-bridge seven-level single-phase grid-connected inverter for photovoltaic system with a novel pulse-width-modulated (PWM) control scheme. The inverter is capable of producing seven output-voltage levels (V-dc, 2V(dc)/3, V-dc/3, 0, -V-dc, -2V(dc)/3, -V-dc/3) from the dc supply voltage.
Nasrudin Abd. Rahim +2 more
openaire +3 more sources