Results 121 to 130 of about 13,543 (298)

OPTIMIZED SPACE-VECTOR-MODULATED QUASI Z-SOURCE NPC INVERTER FOR SOLAR PV APPLICATION [PDF]

Carpathian Journal of Electrical Engineering, 2019
An optimized space vector modulation technique for controlling a quasi Zsource NPC inverter for solar photovoltaic application is presented in this paper.
Francis Boafo EFFAH, Philip OKYERE, Patrick WHEELER   +2 more
doaj  

Material‐Induced Nuclear Deformation Controls Chromatin Architecture in Adipose Stem Cells

Advanced Science, EarlyView.
Tuning cell and cytoskeleton mechanics modulated nuclear shape and heterochromatin organization in ASCs. Distinct cytoskeletal architectures induced nuclear morphologies from oblate to prolate ellipsoids. Large elongated cells with a structured actin cap exhibited high nuclear strain, driving nuclear envelope deformation and heterochromatin ...
Carlo F. Natale, Luca Messina, Valeria Panzetta, Stefania Saporito, Costantino Menna, Maurizio Ventre, Paolo A. Netti   +6 more
wiley   +1 more source

Quasi-Z Source Inverter based 3-Phase Grid-Tied Photovoltaic System with Dual Loop Shoot-Through Control using Discrete Time Sliding Mode Control

Scientific African
This paper proposes a discrete-time sliding mode (DTSM) controller designed for dc-link voltage control for quasi-Z source inverter (q-ZSI) employed in a 3-phase grid-tied photovoltaic system. The dc-link voltage control of q-ZSI offers non-minimum phase
Piyush B. Miyani, Amit V. Sant, Gulshan Sharma, Pitshou N. Bokoro, Rajesh Kumar   +4 more
doaj   +1 more source

Super‐Robust Telecommunications Enabled by Topological Half‐Supermodes

Advanced Science, EarlyView.
Through topological half‐supermode engineering, we realize a valley‐ridge gap waveguide that is directly compatible with conventional waveguides and features topological protection. This design halves the lateral size via a PEC boundary, enabling direct TE₁₀‐mode matching and robust bend‐immune transmission.
Rui Zhou, Xintong Shi, Hai Lin, Yan Ren, Hang Liu, Zihao Yu, Jing Jin, Zhihao Lan, Menglin L. N. Chen   +8 more
wiley   +1 more source

A Versatile Three Dimensional Traction Force Microscopy Framework for Uncovering the Mechanics of Bio‐Adhesion

Advanced Science, EarlyView.
This study introduces a versatile platform for quantifying three dimensional traction forces at bio‐adhesive interfaces. Integrating in situ stereo‐digital image correlation with finite element simulations allows for precise measurement of microscale displacements and traction forces in both dry and wet conditions.
Yingwei Hou, Fusheng Wang, Tao Liu
wiley   +1 more source

A wide-gain quasi-Z-source switched capacitor multi-level voltage source inverter

电力工程技术
Renewable energy such as wind power, photovoltaics require power inversion to generate stable AC voltage for connection to loads or the grid. As a core device in renewable energy power conversion systems, inverters are required to meet the application ...
Qun LI, Qiang LI, Chenggen WANG, Xiaoming ZOU   +3 more
doaj   +1 more source

Inside the Microreactor: In Situ Real‐Time Observation of Vapor–Liquid–Solid Growth of Monolayer TMDCs

Advanced Science, EarlyView.
In situ observation of VLS growth in a confined microreactor reveals various growth modes of monolayer TMDCs, including abnormal ribbon growth and particle‐driven growth. The confined space and precursor balance influence droplet behavior and growth dynamics, offering new insights into the controlled synthesis of TMDCs via the VLS mechanism.
Hiroo Suzuki, Yutaro Senda, Kaoru Hisama, Shuhei Aso, Yuta Takahashi, Shun Fujii, Yasuhiko Hayashi   +6 more
wiley   +1 more source

Semiconducting THO‐C3N Monolayers for Ultrahigh Anisotropic Carrier Mobility

Advanced Science, EarlyView.
A precise site‐specific N‐doping strategy that drives a secondary electronic transition in net W is proposed, enabling the electronic properties transition from metal to Dirac semimetal and ultimately to semiconductor. The obtained THO‐C3N‐2 and THO‐C3N‐3 semiconductors exhibit high carrier mobilities and pronounced mobility anisotropy, with THO‐C3N‐2 ...
Rui Tan, Xueqing Chen, Jifeng Luo, Zhe Xue, Zehou Li, Xiaolin Wei, Zhenkun Tang, Gaokuo Zhong   +7 more
wiley   +1 more source

A Study on Various Causes of Low Frequency Components in Common Mode Voltage of a Space Vector Pulse Width Modulated Three– Phase Quasi–Z–Source H–Bridge Inverter Fed from a Three–Phase Diode Bridge Rectifier

Power Electronics and Drives
The presence of low frequency components in the common mode voltage can cause harmful electromagnetic interference. A critical study on various causes of low frequency components in the common mode voltage of a space vector pulse width modulated Quasi–Z–
Nanda Debalina, Syam Prasid, Mukherjee Kaushik   +2 more
doaj   +1 more source

Ferroelectric‐Polarization‐Driven Structural Engineering of Bi3Nb17O47 Anodes for High‐Performance Lithium‐Ion Batteries

Advanced Science, EarlyView.
A transformative ferroelectric‐polarization strategy is employed to overcome the intrinsic limitations of tungsten bronze (TTB)‐type anode materials in metal‐ion batteries, using Bi3Nb17O47 as a model system. By exploiting the non‐centrosymmetric crystal structure and field‐induced ionic displacements, controlled structural engineering with ...
Xiaoming Lou, Songjie Li, Chunfu Lin, Yanchao Li, Mingze Sun, Zhen Liu, Weiye Nie, Xiaolong Tang, Baoming Wang, Wenwu Cao, Renchao Che   +10 more
wiley   +1 more source