Results 131 to 140 of about 5,942,025 (304)
AC/DC/AC and AC/AC converters - topological circuits and control [PDF]
, 2005 Most variable-speed drive systems use an AC/DC/AC or AC/AC power conversion procedure. Currently, standard adjustable speed drives consist of a diode rectifier and a PWM voltage source inverter.
Pieńkowski, K., Knapczyk, M.
core
Advanced Science, EarlyView.A proof‐of‐concept multifunctional capsule robot integrates diagnostic imaging, magnetic navigation, wireless power transfer, and targeted thermotherapy for gastrointestinal applications. Magnetically guided positioning and stable wireless power enable localized thermal ablation, achieving controlled heating and high cell mortality in vitro.
Heng Zhang +7 more
wiley +1 more source
A new power flow method for mixed AC-DC power systems
, 2017 International audienceThis article presents a new tool to solve the power flow problem for electric mixed AC-DC grids. It is based on the fixed-point theorem of contractive function.
Amir Arzande +5 more
core +1 more source
Advanced Science, EarlyView.Increasing the frequency at which organic electronics operate while limiting the operation voltage is key to enabling future sustainable wireless applications. This work shows p‐type organic field‐effect transistors based on a molecularly doped, small molecule/polymer blend (C8‐BTBT:C16IDT‐BT), fabricated via direct‐writing and solution‐processing ...
Tommaso Losi +8 more
wiley +1 more source
Switch-mode power converters : design and analysis /
, 2006 This book introduces an innovative, highly analytical approach to symbolic, closed-form solutions for switched-mode power converter circuits. This is a highly relevant topic to power electronics students and professionals who are involved in the design ...
Wu, Keng C.
core
Microgrid power electronic converters: state of the art and future challenges
, 2009 This paper presents a review of the state of the art of power electric converters used in microgrids. The paper focuses primarily on grid connected converters.
Sharkh, S.M. +4 more
core +1 more source
Advanced Science, EarlyView.A sono‐responsive chemo‐immune checkpoint nanoinhibitor (Sono‐TT8) co‐delivering TPZ chemotherapy and siXkr8 simultaneously kills tumor cells and blocks PS externalization, reversing chemotherapy‐induced immunosuppression and enhancing antitumor immunity. ABSTRACT Breast cancer features an immunosuppressive tumor microenvironment following chemotherapy
Yunfan Liu +13 more
wiley +1 more source
Advanced Science, EarlyView.Electrode morphology is shown to govern oxygen‐bubble dynamics and interfacial mass transfer during water electrolysis. Positive‐curvature nanoneedles promote rapid release of small bubbles, sustain electrolyte renewal, and minimize mass‐transport losses, whereas flat and concave architectures increasingly retain bubbles.
Zhiqing Tang +9 more
wiley +1 more source
Advanced Science, EarlyView.Acidic CO2 electroreduction to formic acid is enabled by integrating mixed Sn/SnOx nanoclusters, K+‐regulated interfacial solvation, and Janus wettability. Coordinated control of active sites, interfacial water, and gas‐liquid transport suppresses hydrogen evolution and delivers approximately 85% HCOOH Faradaic efficiency at 400 mA cm−2.
Qiaoqi Guo +8 more
wiley +1 more source
Advanced Science, EarlyView.Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park +5 more
wiley +1 more source