Results 111 to 120 of about 5,902,801 (237)

From Sensing Mechanisms to System Co‐Design: Graphene‐Based Sensors and Readout Circuits

Advanced Science, EarlyView.
This review establishes a unified PS–EQ–RF framework linking graphene sensing mechanisms, native electrical outputs, and output‐specific readout circuits. Voltage‐, current‐, resistance‐, and capacitance‐type sensing systems are systematically classified to guide architecture selection, low‐noise design, system co‐design, and practical integration ...
Jinduo Zhang, Meng Chen, Guanchen Li, Ruifeng Liu, Yingxin Wang, Ziran Zhao   +5 more
wiley   +1 more source

A Common Ground Nine‐Level Switched Capacitor Inverter Having Quadruple Boosting Capability for Solar Photovoltaic Applications

IET Power Electronics
The nine‐level switched capacitor multilevel inverter with common ground configuration presented in this work is meant specifically for grid‐tied solar photovoltaic (SPV) applications. Normally the SPV panels produce low‐level voltage.
Muneeb Afroz Bhat, Mohammad Zaid, Adil Sarwar, Farhad Ilahi Bakhsh, Mohd Tariq, Shafiq Ahmad, Md. Rasidul Islam   +6 more
doaj   +1 more source

Power Capability and Efficiency Comparison of Direct Drive PMSG at Different Power Control Strategies

The authors present the results of experimental work on a small-power direct driven permanent magnet synchronous generator reactive power compensation comparison with two methods. Particular generator is targeted for small size wind power systems, and is
Dzelzkalēja, Laura, Sokolovs, Alvis, Sirmelis, Uģis, Grigāns, Linards   +3 more
core  

Frequency Characteristic Analysis of the VSC-HVDC DC Oscillating Power under AC Sub-Synchronous Disturbances

The DC-side response characteristics of the VSC-HVDC transmission system under AC-side sub-synchronous disturbances may lead to the propagation of AC/DC oscillations, and then there may be non-fundamental frequency oscillation on the DC-side.
Zilong Miao, Peng Li, Zijun Bin, Xuan Feng, Xiangping Kong, Bingbing Shao   +5 more
core   +1 more source

Freestanding Hierarchical‐Porous BCZT Thin Films Enable Efficient Ultrasonic Energy Harvesting in Soft Tissue

Advanced Science, EarlyView.
Freestanding hierarchical‐porous BCZT thin films integrate a compliant porous surface with a dense piezoceramic backbone to balance mechanical reliability, voltage sensitivity, and acoustic coupling. The films enable stable wearable pulse‐wave monitoring and enhanced tissue‐coupled ultrasonic energy harvesting, offering a promising route toward soft ...
Zifan Li, Shengwei Gao, Wang Hong, Yuxin Chen, Yiyang Gu, Xu Wang, Chen Tang, Ying Hong, Xuemu Li, Xiaodong Yan, Yi Zheng, Yiming Liu, Junchen Liao, Biao Wang, Shiyuan Liu   +14 more
wiley   +1 more source

A simple 60‐pulse voltage source inverter using voltage reinjection strategy to improve voltage harmonics for high‐power local loads

IET Power Electronics
The voltage reinjection strategy is an effective solution to improve the voltage quality of the voltage source inverters for high‐power applications.
Saeed Najafpour, Reza Ghandehari
doaj   +1 more source

Design of an efficient hybrid AC-DC-AC converter using silicon carbide for ups applications: A comparison

, 2017
With the constant increase of energy consumption in the world, the efficiency of systems and equipment is becoming more important. Silicon Carbide devices are emerging as an opportunity to construct power converters with higher efficiency and higher ...
Lenin M. F. Morais, Wendell Cunha Alves, Wendell C. Alves, Porfirio C. Cortizo, Porfirio Cabaleiro Cortizo   +4 more
core   +1 more source

Internal Resonance Mismatch‐Controlled Dissipative Bistability Collapse in Coupled Micromechanical Oscillators

Advanced Science, EarlyView.
This paper reveals internal resonance mismatch‐controlled dissipative bistability collapse in a coupled micromechanical resonator. Tuning δIR changes both internal‐mode amplitude and phase‐dependent feedback. For negative mismatch, Duffing bistability survives.
Jianlin Chen, Xin Zhou, Takashiro Tsukamoto, Nan Wang, Shuji Tanaka   +4 more
wiley   +1 more source

Piezoelectric Energy Harvesting Solutions: A Review. [PDF]

Sensors (Basel), 2020
Covaci C, Gontean A.
europepmc   +1 more source

Plasma‐Engineered Polyethylene‐Reinforced Anion Exchange Membranes With Low Ionic Resistance and Low Hydrogen Crossover for Water Electrolysis

Advanced Science, EarlyView.
Oxygen plasma functionalizes porous polyethylene, enabling complete hydrocarbon ionomer infiltration within a dense submicron pore network. The resulting reinforced composite membrane simultaneously enhances mechanical robustness and suppresses hydrogen permeation at ultrathin thickness. An integrated performance index confirms the effectiveness of the
Sungjun Kim, Yeram Shin, Minseop So, Jungwon An, Dong‐Chan Kim, Jang Yong Lee, Segeun Jang   +6 more
wiley   +1 more source