Results 71 to 80 of about 142,055 (307)

Cascaded DC Boost converter based on DCM

open access: yesDianzi Jishu Yingyong, 2018
In order to meet the requirements of high-gain DC Boost converters in new energy generation systems and meet the needs of multi-stage high-voltage DC power supply in electric vehicles, this paper presents a high-gain Boost converter based on DCM module ...
Wei Zhen, Jiang Zhijun, Yang Xiaohui
doaj   +1 more source

A Transformerless Boost-Modified Cuk Combined Single-Switch DC-DC Converter Topology with Enhanced Voltage Gain

open access: yesBrazilian Archives of Biology and Technology, 2023
Recently, the research is towards the development of high static gain DC-DC converters suitable for renewable energy applications. The high voltage gain can be achieved using isolated and non-isolated configurations of the converter.
Murali Duraisamy
doaj   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

W-band waveguide-packaged InP HEMT reflection grid amplifier [PDF]

open access: yes, 2006
This letter presents a 79-GHz broadband reflection-type grid amplifier using spatial power combining to combine the power of 64 unit cells. Each unit cell uses a two-stage cascade configuration with InP HEMTs arranged as a differential pair.
Cheung, Chun-Tung   +3 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Linear-assisted DC/DC converters with modified current-mode control applied to photovoltaic solar systems [PDF]

open access: yes, 2014
This article shows the proposal of a current-mode one-cycle control for linear-assisted DC/DC converters. Linearassisted DC/DC converters are structures that allow to take advantages of the two classic alternatives in the design of power supply systems ...
Martínez García, Herminio
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Non-isolated high gain DC-DC converter for PV-fed DC microgrid

open access: yesInternational Journal of Sustainable Engineering
This paper presents a high-gain DC-DC converter for photovoltaic (PV) applications. The proposed high gain DC-DC converter employs two coupled inductors, a voltage-lift capacitor, and two diode-capacitor multiplier cells to achieve a voltage gain of 21 ...
A. S. Valarmathy   +2 more
doaj   +1 more source

Generic closed loop controller for power regulation in dual active bridge DC-DC converter with current stress minimization [PDF]

open access: yes, 2018
This paper presents a comprehensive and generalized analysis of the bidirectional dual active bridge (DAB) DC/DC converter using triple phase shift (TPS) control to enable closed loop power regulation while minimizing current stress.
Abdelsalam, Ibrahim   +3 more
core   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

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