Results 171 to 180 of about 59,496 (303)

High-step-up quadratic DC-DC converter based on switched capacitor and coupled inductor techniques. [PDF]

Sci Rep
Karimi K, Marzang V, Karimi M, Hosseini SH, Feyzi MR.   +4 more
europepmc   +1 more source

Stimulation Efficiency With Decaying Exponential Waveforms in a Wirelessly Powered Switched-Capacitor Discharge Stimulation System. [PDF]

IEEE Trans Biomed Eng, 2018
Lee HM, Howell B, Grill WM, Ghovanloo M.
europepmc   +1 more source

Porosity Engineering of MXene Architectures: Toward High‐Performance Aqueous Electrochemical Energy Storage

Advanced Materials, EarlyView.
This review systematically summarizes recent advances in porosity engineering of MXenes, with a focused discussion on their structure‐governed energy storage properties. A critical analysis of structure–property relationships is presented across alkali‐ion batteries, multivalent‐ion batteries, and supercapacitors.
Shude Liu, Jieming Chen, Xue Peng, Huilin Zhang, Ling Kang, Ming Ma, Zhaoling Li, Yusuke Yamauchi, Bin Ding   +8 more
wiley   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Z source based switched capacitor nine level boost inverter with a modified modulation strategy. [PDF]

Sci Rep
Hasouna AR, Mahmoud SA, El-Sabbe AE, Osheba DSM.   +3 more
europepmc   +1 more source

S-Hybrid Step-Down DC-DC Converter-Analysis of Operation and Design Considerations [PDF]

, 2020
Le, Hanh-Phuc, Seo, Gab-Su
core  

Ultrafast Vertical Organic Electrochemical Transistors With Ion‐Permeable Conductive Polymer Top Electrodes

Advanced Materials, EarlyView.
Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu, Yingxue An, Luigi Fabiano, Qifan Li, Qingqing Wang, Feng Zhang, Wenlong Jin, Miao Xiong, Junpeng Ji, Ugo Bruno, Grzegorz Greczynski, Grazia Maria Lucia Messina, Xianjie Liu, Chi‐Yuan Yang, Simone Fabiano   +14 more
wiley   +1 more source

60[Formula: see text] Flat PWM technique for single-source switched-capacitor multilevel inverter with quadruple voltage boost and enhanced output. [PDF]

Sci Rep
G M O, S A L, M JS.
europepmc   +1 more source

A Colloidal Quantum Dot Thermistor and Bolometer

Advanced Materials, EarlyView.
This work introduces colloidal quantum dot thermistors employing a potential barrier structure to tune the activation energy of transport and hence the temperature coefficient of resistance (TCR). Upon integration with plasmonic absorbers, the CQD‐based bolometer device enables room‐temperature wavelength‐selective photodetection across the mid‐ to ...
Gaurav Kumar, Mariona Dalmases, Nima Taghipour, Rajesh Bera, Guy L. Whitworth, Goretti Torres Perez, Miguel Dosil, Gerasimos Konstantatos   +7 more
wiley   +1 more source

An enhanced single phase quasi Z-source switched capacitor seven level inverter with modified SPWM for PV applications. [PDF]

Sci Rep
Hosseini S, Hosseini SH, Sabahi M, Babaei E.   +3 more
europepmc   +1 more source