Results 51 to 60 of about 5,902,801 (237)

Near‐Infrared Imaging of H2O2 in Plants With Nanosensors Under Environmentally Changing Conditions

Advanced Materials, EarlyView.
This paper reports a ratiometric nanosensor enabling robust, multivariate detection of stress signals (H2O2) in plants, with high resistance to light fluctuations and mechanical disturbances. Single‐walled carbon nanotubes serve as the sensor, Egyptian Blue nanosheets serve as a stable reference, and plant autofluorescence serves as a label‐free ...
Jiaqi Li, Bjoern F. Hill, Chen Ma, Juliana Gretz, Tanuja Kistwal, Janus A. C. Wartmann, Justus T. Metternich, Juan Pablo Giraldo, Sebastian Kruss   +8 more
wiley   +1 more source

A novel reliability estimation methodology towards the design and implementation of symmetric multilevel inverter for long run applications

IET Power Electronics
Multilevel inverters (MLIs) are gaining attention in numerous applications due to their better performance attributes. Still, their utility in long‐run applications remains a critical concern due to the reliability issues.
Daki Krishnachaitanya, Chitra Annamalai, Maher Al‐Greer, Sitangshu Sekhar Biswas   +3 more
doaj   +1 more source

Output current harmonic analysis and suppression method for PMSM drive system with modular multilevel converter

IET Renewable Power Generation, 2023
Aiming at the output current distortion problem in the low frequency operation of permanent magnet synchronous motor (PMSM) drive system of modular multilevel converter (MMC), the essential relationship between the output current distortion and the ...
Yang Zhang, Sicheng Li, Bing Luo, Chaokui Luo, Zhi Yu   +4 more
doaj   +1 more source

The Possibility of Enhanced Power Transfer in a Multi-Terminal Power System through Simultaneous AC–DC Power Transmission

, 2021
The feasibility of power transfer enhancement, through simultaneous AC–DC power transmission in a two-terminal transmission network, has been proposed earlier by the authors, and the concept is well established.
Shaista Parveen, Hafizur Rahman, Basem Alamri, Akbar Ahmad, Salman Hameed, Khaliqur Rahman, Mohd Tariq   +6 more
core   +1 more source

Oxygen‐Controlled Structural and Defect Engineering of Magnetron‐Sputtered ZnO Thin Films for Photosensing

Advanced Materials Interfaces, EarlyView.
Zinc oxide thin films are engineered by controlling oxygen flow and nominal partial pressure during growth to tune atomic‐scale defects and crystallographic texture that limit device performance. By balancing competing defects, the films achieve improved preferential c‐axis orientation and enhanced ultraviolet photoresponse.
Julfikar Ali Sarkar, Rupa Jeena, Mohammed Aslam   +2 more
wiley   +1 more source

Three‐vector model‐free predictive control for permanent magnet synchronous motor

IET Power Electronics, 2023
A three‐vector model‐free predictive control (TV‐MFPC) strategy is proposed to address the problem of model predictive control systems performance degradation caused by parameter mismatch and inverter dead‐zone.
Dingdou Wen, Yanqin Zhang, Yang Zhang
doaj   +1 more source

Non-isolated Buck-Boost Hybrid Converter with AC-AC/DC Power Conversion for Simultaneous Wired and Wireless Power Transfer

, 2022
In this paper, a new non-isolated buck-boost hybrid converter, which achieves a single-stage AC-AC/DC power conversion with only one inductor in the power stage is proposed.
Wu, Jiayang, Lee, Albert T.L., Tan, Siew Chong, Ron Hui, S. Y.   +3 more
core   +1 more source

Large‐Scale and Cost‐Effective Fabrication of Ultra‐Thin, Biodegradable Microelectrode Arrays and Pressure Sensors Using Laser Micromachining

Advanced Materials Technologies, EarlyView.
A mask‐free and cost‐effective UV‐pico‐second laser‐based microfabrication method is proposed to fabricate large‐area biodegradable microelectrode arrays and pressure sensors. These devices demonstrate low impedance, good conformability, excellent biocompatibility, and rapid degradation, providing a new route for next‐generation transient electronics ...
Bhavani Prasad Yalagala, Asfand Tanwear, María Cerezo‐Sánchez, Hossein Parvizi, Morteza Amjadi, Hadi Heidari   +5 more
wiley   +1 more source

An Extendable High Step‐Up Interleaved DC–DC Converter Utilizing a Switched Capacitor Cell

IET Power Electronics
A DC–DC interleaved converter with a coupled inductor is proposed in this study. This converter is capable of generating high voltage through the use of switched capacitors and additional components.
Darioush Alizadeh, Ebrahim Babaei, S. M. J. Mousavi   +2 more
doaj   +1 more source

Simple new PWM patterns for thyristor three-phase AC/DC convertors

, 1986
Thyristor forced commutated AC/DC convertors are useful for improving the power factor and waveform of AC-side line current. These are controlled through pulse-width modulation schemes for best performance.
Mahesh, MS, Biswas, SK, lyengar, BSR
core