Results 51 to 60 of about 21,594 (292)

Modified cascaded multilevel inverter for renewable energy systems with less number of unidirectional switches

Energy Reports, 2022
This study presents, a novel topology for multilevel inverter based on series connection of basic modules. The suggested topology is utilize for symmetrical and asymmetric source system, which can be used for fuel cell and photovoltaic systems.
Kishor Thakre, Kanungo Barada Mohanty, Vinaya Sagar Kommukuri, Aditi Chatterjee, Prateek Nigam, Sanjeev Kumar Gupta   +5 more
doaj   +1 more source

Programmable Dimensional Lithography with Digital Micromirror Devices for Multifunctional Microarchitectures

Advanced Materials Technologies, EarlyView.
This review explores recent advances in digital micromirror device (DMD)‐based lithography, focusing on its programmable light modulation, multi‐material compatibility, and dimensional patterning strategies. It highlights innovations from optical system design to materials integration and multifunctional applications, positioning DMD lithography as a ...
Yubin Lee, Byungcheon Yoo, Chaeyeong Ryu, Jongwon Oh, Dahye Baek, Jiseok Lee   +5 more
wiley   +1 more source

A new symmetric modular eleven‐level inverter using single and double source unit for low voltage applications with reduced number of switches

IET Power Electronics, EarlyView., 2023
This study introduces a new modular multilevel inverter that can produce five levels of positive voltage using only six power switches and five DC voltage sources. The basic unit is composed of a single‐ and double‐source (SDS) unit. SDS reduces the number of power electronic components, such as the insulated gate bipolar transistors, freewheeling ...
Naser Fakhri, Sara Laali, Mohammad Salay Naderi, Hossein Rahimi, Saeid Gholami Farkoush   +4 more
wiley   +1 more source

Mathematical Derivation of Switching Angles of Multilevel Voltage Source Inverter based on Alternative Phase Opposition Disposition (APOD)

MATEC Web of Conferences, 2017
Modular structured multilevel inverter is very useful for electrical application especially in high voltage and high power applications. The main function of this multilevel inverter is to produce multilevel AC output voltage from several separate DC ...
Ismail Mohd Alif, Abdul Aziz Mohd Junaidi, Idris Muhd Hafizi, Fadzail Noor Fazliana, Ahmad Mohd Saufi, Amirruddin Melaty, Abdullah Farrah Salwani, Mohd Mukhtar Nurhakimah   +7 more
doaj   +1 more source

Hydrogel Confinement Strategies for 3D Cell Culture in Microfluidic Systems

Advanced Materials Technologies, EarlyView.
Hydrogel confinement structures are key to organizing 3D cell cultures in microfluidic devices. This review classifies five structural strategies (micropillar, phaseguide, porous membrane, stepped‐height, and support‐free) and examines their trade‐offs alongside fabrication methods.
Soohyun Kim, Min Seok Lee, Sung Kyun Lee
wiley   +1 more source

Review of multiport modular multilevel converters for residential applications: A control perspective

IET Power Electronics, EarlyView., 2023
Here, multiport modular multilevel converter (MPMMC) topologies will be reviewed and analysed from a control standpoint. It does this through identifying feasible MPMMC topologies, developing review criteria and then reviewing the feasible topologies.
Stephan Adams, Dezso Sera, Geoffrey Walker, Mark Broadmeadow   +3 more
wiley   +1 more source

Single Source Cross-Connected Reduced Activated Switched-Capacitor Multilevel Inverter (S2C2RASCMLI) with Self-Voltage Balancing for Horizontal/Vertical Extension [PDF]

Iranian Journal of Electrical and Electronic Engineering, 2023
Single Source Cross Connected Reduced Activated Switched-Capacitor Multilevel Inverter (S2C2RASCMLI) accompanied by fewer active switching components is appealing to nine-level of voltage with its simplicity and a solid network.
Oorappan G Murugan, Jeevanandham Arumugam, Suresh Velliangiri   +2 more
doaj  

Conditions for Capacitor Voltage Regulation in a Five-Level Cascade Multilevel Inverter: Application to Voltage-Boost in a PM Drive [PDF]

, 2007
A cascade multilevel inverter is a power electronic device built to synthesize a desired AC voltage from several levels of DC voltages. Such inverters have been the subject of research in the last several years, where the DC levels were considered to be ...
Chiasson, John, Du, Zhong, Ozpineci, Burak, Tolbert, Leon M.   +3 more
core   +2 more sources

Genomics Insights Into High‐Latitude Adaptation of Tibetan Macaques

Advanced Science, EarlyView.
Tibetan macaques exhibit unique adaptations to cold, high‐latitude environments, including shortened tails and enhanced fat storage. Genomic analyses reveal a species‐specific TBX6 mutation linked to tail reduction and selection on lipid metabolism genes.
Rusong Zhang, Ying Hu, Yang Teng, Jiwei Qi, Yangzhen Ciren, Lin Zhang, Qiao Du, Wencai Xu, Liang Zhou, Zhenxin Fan, Jinchuan Xing, Ming Li, Jing Li   +12 more
wiley   +1 more source

A nine‐level T‐type inverter (9L‐TTI) with voltage boost capability

IET Power Electronics, EarlyView., 2023
A new multi‐level inverter topology with boosting feature considering the reduced switch count has been presented, compared and validated. Abstract This paper introduces a 9L T‐type boost inverter (9L‐TTI) based multilevel topology, which generates a nine‐level output voltage in the boost mode.
Zarren Firdous, Saad Mekhilef, Nidhi Mishra, Asif Mustafa, Mehdi Seyedmahmoudian, Alex Stojcevski   +5 more
wiley   +1 more source