Results 261 to 270 of about 219,041 (325)

Deep learning-based non-contrast MRI model for nasopharyngeal carcinoma diagnosis: an end-to-end gadolinium-free solution. [PDF]

open access: yesNPJ Digit Med
Li Z   +25 more
europepmc   +1 more source

Shifting burden of nasopharyngeal carcinoma: global patterns and forecasts to 2050 from the GBD 2021. [PDF]

open access: yesFront Oncol
Zhou E   +8 more
europepmc   +1 more source

Hyperpigmentation disorders: A comprehensive analysis in a worldwide large‐scale study on 50,552 individuals

open access: yes
JDDG: Journal der Deutschen Dermatologischen Gesellschaft, EarlyView.
Charbel Skayem   +7 more
wiley   +1 more source
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Cascade Control of Grid-Connected NPC Converters via Sliding Mode Technique

IEEE transactions on energy conversion, 2023
This paper proposes a two-stage control strategy including an adaptive sliding mode control (ASMC) and a nonlinear high-gain observer (HGO) for the three-level neutral-point-clamped (NPC) converter in dc microgrids. In the outer loop, an ASMC is utilized
Xiaoning Shen   +5 more
semanticscholar   +1 more source

Versatile Photoelectrochemical Biosensing for Hg2+ and Aflatoxin B1 Based on Enhanced Photocurrent of AgInS2 Quantum Dot-DNA Nanowires Sensitizing NPC-ZnO Nanopolyhedra.

Analytical Chemistry, 2022
Eliminating false positives or negatives in analysis has been a challenge. Herein, a phenomenon of polarity-switching photocurrent of AgInS2 quantum dot (QD)-DNA nanowires reversing nitrogen-doped porous carbon-ZnO (NPC-ZnO) nanopolyhedra was found for ...
Qianqian Cai   +4 more
semanticscholar   +1 more source

Single-Phase Five-Level IT-Type NPC Inverter With Improved Efficiency and Reliability in Photovoltaic Systems

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022
The reduction in the cost of photovoltaic (PV) energy is still required to be competitive as an alternative energy source. The efficiency and reliability of PV inverters are important aspects to be enhanced to reduce the cost of PV energy since it is ...
U. Choi, June-Seok Lee
semanticscholar   +1 more source

Heterostructure of Ru2P/WO3/NPC Synergistically Promotes H2O Dissociation for Improved Hydrogen Evolution.

Angewandte Chemie, 2020
Facilitating the dissociation of water and desorption of hydrogen are both crucial challenges for improving the hydrogen evolution reaction (HER) in alkaline media. Herein, we report the synthesis of heterostructure of Ru2P/WO3@NPC (N, P co-doped carbon)
Xiaoli Jiang   +8 more
semanticscholar   +1 more source

Improved NPC Inverters Without Short-Circuit and Dead-Time Issues

IEEE transactions on power electronics, 2021
The traditional neutral point clamped (NPC) inverter has short-circuit problem. The risk of short-circuit can be decreased by using dead-time in the switching signals.
Ashraf Ali Khan   +4 more
semanticscholar   +1 more source

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