Results 1 to 10 of about 230 (201)

Engineering of Germanium Tunnel Junctions for Optical Applications

open access: yesIEEE Photonics Journal, 2018
Data transfer across millimeter-scale electrical wires is limited by both data rates and power density, which creates a performance bottleneck for semiconductor microchips in modern computer systems.
Roman Koerner   +5 more
doaj   +1 more source

Fully soft switched high step‐up/down bidirectional buck/boost converter with reduced switch voltage stress

open access: yesIET Power Electronics, 2023
A fully soft switched high step‐up/down bidirectional converter is presented in this paper. The high voltage conversion ratio is achieved by a pair of coupled inductors along with a switched capacitor while all active switches operate at zero voltage ...
Mohsen Packnezhad   +2 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

open access: yesMolecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano   +6 more
wiley   +1 more source

A Novel Discrete Branch Bidirectional Solid-State Circuit Breaker Based on Mixture Device

open access: yesCES Transactions on Electrical Machines and Systems
Solid state circuit breakers (SSCBs) based on full-controlled devices such as IGBT and based on half-controlled devices such as thyristor have their respective advantages.
Qingpeng Zeng   +4 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Freewheeling Diode Current Under Open-Phase Fault in Field-Weakening Region of Multiple Three-Phase Drives

open access: yesApplied Sciences
Multiple three-phase machine drives are inherently fault-tolerant due to their multiphase structure; however, they remain susceptible to inverter-related faults.
Živa Stare   +3 more
doaj   +1 more source

A Nonisolated Single-Switch Coupled Inductor-Based DC-DC Converter with High Voltage Gain for Renewable Power Generation Systems

open access: yesInternational Transactions on Electrical Energy Systems, 2023
This article proposed a new structure of nonisolated high step-up DC-DC converter based on a three-winding coupled inductor and voltage multiplier cells (VMCs) for renewable energy systems applications such as PV power generation.
Hafez Nouhi   +2 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

A Digital Synchronous Rectification Control Strategy With Duty‐Ratio Compensation for LLC Resonant Converters

open access: yesIET Power Electronics
Synchronous rectification (SR) technique can significantly enhance the efficiency of LLC resonant converters. However, at high frequencies, SR control strategies based on drain–source voltage suffer from substantial duty ratio loss due to the influence ...
Haihong Qin   +5 more
doaj   +1 more source

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