Results 31 to 40 of about 644 (140)

Single-carrier phase-disposition PWM implementation for multilevel flying capacitor converters [PDF]

, 2015
This letter proposes a new implementation of phase-disposition pulse-width modulation (PD-PWM) for multilevel flying capacitor (FC) converters using a single triangular carrier.
Agelidis, VG, Capella, G. J., Agelidis, V. G., Ghias, AMYM, Agelidis, Vassilios, Meynard, Thierry A., Capella, GJ, Pou Félix, Josep, Aguilera, Ricardo P, Pou, J., Ghias, Amer M.Y.M., Pou, J, Meynard, T, Aguilera, R. P., Aguilera, RP, Capellá Frau, Gabriel José, Ghias, A. M. Y. M   +16 more
core   +1 more source

A Portable Soft Robotic Glove with Fully Functional Thumb Assistance for Complex Dexterous Fine Motor Skills

Advanced Science, EarlyView.
A portable, sensorized, and controlled dexterous thumb‐enhanced glove helps stroke survivors swipe phones, twist caps, and perform other tasks. It is based on a powerful continuously, segmented origami dual chamber actuator to achieve active thumb CMC and MCP joint assistance and passively extend the IP joint.
Disheng Xie, Zhen Wang, Zhongping Ye, Minghao Liu, Xiangqian Shi, Shuk Fan Tong, Jianbin Liu, Chuanbin Mao, Thomas W. Leung, Haitao Liu, Raymond Kai‐yu Tong   +10 more
wiley   +1 more source

Revolutionising Agricultural Sustainability: New ‘Furrow Tillage’ can Mitigate Short‐Term Soil‐to‐Atmosphere CO2 Flux and Promote Soil‐Plant‐Microbe Health

Advanced Science, EarlyView.
Furrow tillage resolves the conventional‐vs.‐no‐tillage trade‐off by simultaneously cutting CO2 efflux to 2.0–3.0 g C m−2 d−1 and unlocking high nutrient availability for the rice rhizosphere. This scalable agronomic solution strengthens soil health, enhances plant physiology, reshapes microbial metabolism, and shifts paddy systems toward a net ...
Arnab Majumdar, Munish Kumar Upadhyay, Argha Ghosh, Rakesh Biswas, Ioly Kotta Loizou, Martin Buck, Mark Tibbett, Biswajit Giri, Debojyoti Moulick, Manoj Kumar Jaiswal, Tarit Roychowdhury   +10 more
wiley   +1 more source

ANFIS based Direct Torque Control of PMSM Motor for Speed and Torque Regulation [PDF]

, 2022
Nowadays, the Permanent Magnet Synchronous Motors (PMSM) are gaining popularity among electric motors due to their high efficiency, high-speed operation, ruggedness, and small size.
Basappa, Marulasiddappa Hallikeri; Jain University, Viswanathan, Pushparajesh; Jain University   +1 more
core   +2 more sources

A novel transformer-less eleven-level inverter with optimized Buck–Boost controller and minimal switch design for grid-connected PV systems

Automatika
This study introduces an innovative hybrid power quality system designed to address power quality issues in grid-connected photovoltaic (PV) systems. The system features a transformer-less eleven-level inverter and integrates an optimized Buck–Boost (BBC)
N. Gowtham, J. Mohana Lakshmi, G. K. Savyasachi, Mahipal Bukya   +3 more
doaj   +1 more source

Wake‐Up and Fatigue under Electrical Cycling in HfO2‐Based Ferroelectrics: Mechanisms and Strategies toward Reliable Devices

Advanced Science, EarlyView.
HfO2‐based ferroelectrics exhibit wake‐up and fatigue behaviors during electrical cycling, significantly affecting device endurance and reliability. These phenomena are governed by defect dynamics, including oxygen vacancy redistribution and charge trapping.
Hongseok Kim, Shinhyeong Lee, Hyojun Choi, Minseung Park, Hyunah Cho, Min Hyuk Park, Yunseok Kim   +6 more
wiley   +1 more source

On the question of research of characteristics of the output voltage waveforms structure of a voltage inverter-induction motor [PDF]

, 2016
В работе проведен анализ, позволяющий повысить качество выходного напряжения при формировании широтно-импульсной модуляции (ШИМ) путем использования трапецеидального сигнала за счет снижения числа коммутаций при синхронности моментов переключения силовых
Шокарев, Д. А., Шокарьов, Д. А., Shokarov, Dmytro   +2 more
core   +5 more sources

From Flexible to Conformable Pressure Sensors: Mechanisms, Materials, and Biomedical Applications

Advanced Electronic Materials, EarlyView.
This review highlights recent progress, challenges and future opportunities in pressure sensing for advanced biomedical applications. We summarize key transduction mechanisms and emerging material strategies, discuss representative wearable and implantable applications for continuous physiological monitoring and provide a focused perspective on barrier
Rishabh B. Mishra, Andrea Ottomaniello, Virgilio Mattoli   +2 more
wiley   +1 more source

Energy‐Based Characterisation of Earthquake Damage in Masonry Infills Through Combined In‐Plane and Out‐of‐Plane Experimental Tests

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The seismic capacity of structural systems/members is usually defined in terms of deformation thresholds. Although this is effective in many circumstances, disregarding cumulative quantities such as hysteretic energy may be ineffective when low‐cycle fatigue is relevant (e.g., long‐duration ground motions, very soft soils, ground‐motion ...
Roberto Gentile, Giulia Angelucci, Jingren Wu, Marilisa Di Benedetto, Riccardo Milanesi, Giulio Augusto Tropea, Fabrizio Mollaioli, Fatemeh Jalayer, Fabio Freddi, Fabio Di Trapani, Paolo Morandi, Gerard J. O'Reilly   +11 more
wiley   +1 more source

Enhancing Reference Tracking in Induction Motor Drives: A Hybrid Model Predictive Control and Artificial Neural Network Approach

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Induction motors (IMs) are widely used in industry for their robustness and cost‐effectiveness, yet their nonlinear and multivariable dynamics pose significant challenges for high‐performance speed control. Model Predictive Control (MPC) is a well‐established solution but suffers from limitations related to model accuracy and parameter ...
Asier del Rio, Oscar Barambones, Eneko Artetxe, Jokin Uralde, Isidro Calvo   +4 more
wiley   +1 more source