Results 101 to 110 of about 20,262 (300)

Novel Scalable Topologies of High Power Density Quadratic Converters With Low Voltage Stress on Power Diode

IEEE Open Journal of the Industrial Electronics Society
High-gain dc–dc converters are used for a number of applications including the power processing of several low-voltage renewable energy sources (solar photovoltaic and fuel cells) while they are integrated into a microgrid. This article introduces
Md Samiullah, Mohammed A. Al. Hitmi, Atif Iqbal, Shirazul Islam   +3 more
doaj   +1 more source

Photo‐Controlled Antibacterial Drug Release From DASA‐Coated Silica Particles for Improved Treatment of Wound Infections

Advanced Functional Materials, EarlyView.
Synthesis and characterization of light‐responsive donor–acceptor Stenhouse adducts (DASA)‐coated chlorhexidine‐loaded silica nanoparticles. Such a controllable drug‐delivery system enables the release of the antimicrobial drug on demand and in consecutive cycles, thereby maintaining the concentration within the therapeutic window.
Michèle Clerc, Flavia Zuber, Lea Oberhänsli, Yvonne Elbs‐Glatz, Maria M. Miguel, Vera M. Kissling, Qun Ren, Markus Rottmar, Luciano F. Boesel, Giorgia Giovannini   +9 more
wiley   +1 more source

Switched-Capacitor Based Modified Extended High Gain Switched Boost Z-Source Inverters

IEEE Access, 2019
Two novels switched Z-source inverters (ZSI) based on the active switched capacitor with high voltage conversion ratio are presented. These are active switched capacitor-based capacitor assisted extended boost ZSI and diode assisted extended boost ZSI ...
Anish Ahmad, R. K. Singh, Abdul R. Beig
doaj   +1 more source

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Passive Switched Capacitor RF Front Ends for Spectrum Sensing in Cognitive Radios

International Journal of Antennas and Propagation, 2014
This paper explores passive switched capacitor based RF receiver front ends for spectrum sensing. Wideband spectrum sensors remain the most challenging block in the software defined radio hardware design. The use of passive switched capacitors provides a
Bodhisatwa Sadhu, Martin Sturm, Brian M. Sadler, Ramesh Harjani   +3 more
doaj   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Implementation of a Two-Channel Maximally Decimated Filter Bank using Switched Capacitor Circuits [PDF]

, 2013
The aim of this paper is to describe the implementation of a two-channel filter bank (FB) using the switched capacitor (SC) technique considering real properties of operational amplifiers (OpAmps).
Hospodka, J., Nahlik, J., Psenicka, B., Sovka, Pavel   +3 more
core   +1 more source

Robust Polymer Hydrogels Improve Electric‐Fish‐Inspired Batteries

Advanced Functional Materials, EarlyView.
ABSTRACT Electric‐fish‐inspired hydrogel batteries based on ion‐concentration gradients offer an attractive route to soft power sources; however, the poor mechanical properties of existing hydrogels limit device assembly and performance. Here, we report poly(ethylene glycol) methyl ether acrylate hydrogels that enable ion‐gradient batteries composed of
Nick Zahnd, Satyajit Das, John Marc C. Puguan, Carolina Pierucci, Michael Mayer, Christoph Weder   +5 more
wiley   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Research of optimized sorting algorithm of capacitor voltage for MMC

Gong-kuang zidonghua, 2014
The paper researched primary cause of increasing of switching frequency of modular multilevel converter led by traditional capacitor voltage sorting algorithm according to operation principle of the converter. It proposed an improved sorting algorithm of
SONG Pinggang, JIANG Lang, LI Yunfeng, DUAN Chengting   +3 more
doaj   +1 more source