Results 91 to 100 of about 14,080,766 (337)

Comprehensive review of nonisolated bridgeless power factor converter topologies

IET Circuits, Devices and Systems, 2021
The intention of this study is to provide a critical review of single‐phase nonisolated bridgeless power factor converter topologies, which will be useful for novice researchers in the power electronics field.
Ankit Kumar Singh, Anjanee Kumar Mishra, Krishna Kumar Gupta, Taehyung Kim   +3 more
doaj   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Scaling of the Anomalous Boost in Relativistic Jet Boundary Layer

, 2014
We investigate the one-dimensional interaction of a relativistic jet and an external medium. Relativistic magnetohydrodynamic simulations show an anomalous boost of the jet fluid in the boundary layer, as previously reported.
Alex Klimas, Aloy, Aloy, Birkinshaw, Blandford, Ferrari, Komissarov, Michael Hesse, Mizuno, Mizuno, Mészáros, Seiji Zenitani, Stawarz, Synge, Tchekhovskoy, Turland   +15 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Single‐stage ZVS boost integrated push–pull power factor correction converter

IET Power Electronics
This study proposes a cutting‐edge AC/DC converter designed for medium‐power PFC applications. The converter is a single‐phase, single‐stage boost‐push–pull model.
Hamed Nazemi Sejzi, Ehsan Adib
doaj   +1 more source

Power spectrum tomography of dark matter annihilation with local galaxy distribution

, 2014
Cross-correlating the gamma-ray background with local galaxy catalogs potentially gives stringent constraints on dark matter annihilation. We provide updated theoretical estimates of sensitivities to the annihilation cross section from gamma-ray data ...
Ando, Shin'ichiro
core   +1 more source

PICALM::MLLT10 translocated leukemia

FEBS Letters, EarlyView.
This comprehensive review of PICALM::MLLT10 translocated acute leukemia provides an in‐depth review of the structure and function of CALM, AF10, and the fusion oncoprotein (1). The multifaceted molecular mechanisms of oncogenesis, including nucleocytoplasmic shuttling (2), epigenetic modifications (3), and disruption of endocytosis (4), are then ...
John M. Cullen, Antonia C. Nakatsugawa, Natalie Barton, Henry Haines, Gary S. Stein, Janet L. Stein, Daniel S. Wechsler, Jessica L. Heath   +7 more
wiley   +1 more source

Analysis of Different PWM Techniques for Enhanced Ultrahigh Gain Z-Network Topology

International Transactions on Electrical Energy Systems
In these modern times, the Z-source inverters (ZSIs) have become a revolutionary invention ever since the year 2002. The pulse-width modulation (PWM) technique used for most of the ZSIs is simple boost control PWM (SBC-PWM), and the SBC-PWM implies for a
Vadthya Jagan, Bhavadish Chary Maheshwaram, Mallesh Usirikapally, Praveen Kumar Balachandran, B. Nagi Reddy, Sankeerthana Mettu, C. Dhanamjayulu, G. Arunkumar, K. C. Saranya, Baseem Khan   +9 more
doaj   +1 more source

A Soft-switched Pwm Interleaved Boost-flyback Converter With Power Factor Correction

Eletrônica de Potência, 2004
This paper proposes a soft switching interleaved Boost-Flyback converter employed as a preregulator stage providing power factor correction. The use of a soft commutation cell allows the main switches to be turned on and off under null current and null ...
Carlos A. Gallo, João A. Corrêa Pinto, Luiz Carlos de Freitas, Valdeir J. Farias, Ernane A. A. Coelho, João Batista Vieira Jr.   +5 more
doaj   +1 more source