Results 21 to 30 of about 1,047 (204)

A Novel High-Power-Factor Single-Switch Electronic Ballast for Compact Fluorescent Lamps

open access: yesEletrônica de Potência, 2004
In this paper a high-power-factor electronic ballast for compact fluorescent lamps based on the class E amplifier and featuring low voltage stress across the switch is presented.
Mario Ponce   +4 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Cascaded Boost-Class-E for rotary capacitive power transfer system

open access: yesThe Journal of Engineering, 2019
This paper presents a capacitive power transfer (CPT) system design for low-power rotary applications. The aim of a rotary CPT system is to be free of power cables so it can achieve 360 degrees of free rotation, while remaining simple and easy to clean ...
Yusmarnita Yusop   +5 more
doaj   +1 more source

Steady-State Analysis and Design Methodology for Class-E2 Resonant DC/DC Converters Based on a Normalized State-Space Model

open access: yesEletrônica de Potência, 2020
This paper presents a steady-state analysis and design methodology for the Class-E² resonant DC/DC converter. The converter is represented in a normalized state-space model that is independent of specifications and real system components, like as ...
Lucas S. Mendonça   +3 more
doaj   +1 more source

Nutrient/TOR signaling controls adipose mitochondrial transcription factor A (TFAM) to regulate organismal growth in Drosophila

open access: yesFEBS Letters, EarlyView.
Animals must match their growth rate to available nutrients. We show that in Drosophila larvae, the nutrient‐sensing TOR kinase controls growth by regulating levels of TFAM, a key regulator of mitochondrial function, in the adipose tissue. When nutrients are abundant, high TOR activity suppresses TFAM, lowering mitochondrial bioenergetic activity and ...
Shrivani Sriskanthadevan‐Pirahas   +4 more
wiley   +1 more source

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

open access: yesFEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang   +2 more
wiley   +1 more source

Utilizing Neural Network for Designing Load‐Independent Class E Inverter

open access: yesIET Power Electronics
This paper presents the design, simulation, and fabrication of a load‐independent Class E inverter utilizing an artificial neural network (ANN) facilitator.
Mehrnaz Khodadoost   +2 more
doaj   +1 more source

Optimization Design of Load-Independent Class-E$^{2}$ DC-DC Converter With Performance Visualization

open access: yesIEEE Open Journal of Power Electronics
This paper proposes an analysis and design method for the load-independent class-E$^{2}$ DC-DC converter, which is composed of the load-independent class-E inverter and the load-independent class-E synchronous rectifier.By combining the newly derived ...
Tatsuki Osato, Xiuqin Wei, Hiroo Sekiya
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Effects of Foreign Metal Object on Soft-Switching Conditions of Class-E Inverter in WPT

open access: yesEnergies, 2018
A foreign metal object will deteriorate the performance of wireless power transfer (WPT) systems and cause insecurity issues. Therefore, the influence principles and rules of foreign metal objects on soft-switching conditions of Class-E inverters and the
Wenxun Xiao   +5 more
doaj   +1 more source

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