Results 31 to 40 of about 3,704 (266)

Boost DC–DC Converter Topologies for ViPV Systems: A Technical Review

IEEE Access
The integration of photovoltaics into electric vehicles ViPV imposes constraints, including partial shading, curvature induced irradiance gradients, and low profile packaging that challenge conventional DC DC converter designs.
Sebastian Rodriguez-Romero, Jorge Rabanal-Arabach, Christian A. Rojas, Mauricio Trigo-Gonzalez, Diego Arias, Fernando Castro-Gallardo, Edward Fuentealba-Vidal   +6 more
doaj   +1 more source

A Hybrid Interleaved DC-DC Converter Based on Buck-Boost topologies for Medium Voltage Applications

e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
DC-DC power converters with high voltage gain are primary components for renewable energy generation such as offshore wind farms. As the DC-DC converters installed in these farms should have limited size and weight, the non-isolated DC-DC converters are ...
A. Zakaria, M.I. Marei, H.M. Mashaly
doaj   +1 more source

Exercise Capacity, Physical Activity, Fatigue, and Neurocognitive Function in Adult Survivors of Childhood Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess, Gustaf Glavå, Simon Skau, Hans‐Georg Kuhn, Maria Bäck, Marianne Jarfelt   +5 more
wiley   +1 more source

A Review of High-Step-Up Non-Isolated DC–DC Converters Focusing on the Topology Methodology and Features

IEEE Access
Power electronic converters are essential components in modern electrical systems, with dc–dc converters being particularly crucial for their extensive variety and widespread applications, notably in renewable energy systems and electric vehicles.
Iman Soltani, Gholam Reza Molaeimanesh, Hossein Gholizadeh, Hani Vahedi   +3 more
doaj   +1 more source

Topologies and Control Schemes of Bidirectional DC–DC Power Converters: An Overview

IEEE Access, 2019
Bidirectional DC-DC power converters are increasingly employed in diverse applications whereby power flow in both forward and reverse directions are required.
Saman A. Gorji, Hosein G. Sahebi, Mehran Ektesabi, Ahmad B. Rad   +3 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

The Design and Analysis of a Family of Capacitively-Isolated Hybrid Switched-Capacitor Converters

IEEE Open Journal of Power Electronics
Series-input, parallel-output converters can achieve extreme conversion ratios with high efficiency by utilizing a stacked architecture that relies on isolated converters. Typically, these isolated converters are magnetics-based modules.
Jade Sund, Samantha Coday
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Quasi-Resonant Half-Wave Buck Converter with Non-Isolated High Side Switching Techniques

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
Power density of the power converters became one of the most important parameters in many applications. Power density is increased by reducing the losses through use of better performing components and circuit topologies.
Elif Topuz, Burak Gördük, Deniz Yıldırım   +2 more
doaj   +1 more source