Results 131 to 140 of about 14,860 (299)

Compact Tabletop Magnetic Resonance Elastography for Mapping Soft Tissue Viscoelasticity

Advanced Science, EarlyView.
This work introduces a compact, low‐cost tabletop magnetic resonance elastography platform for high‐resolution viscoelastic mapping in soft‐tissue specimens. Using this method in human colorectal liver metastases, we demonstrate fully automated biomechanical profiling of treatment response and show that heterogeneity‐based metrics outperform ...
Weijie Zhao, Lisa‐Marie Skrip, Heiko Tzschätzsch, Tom Meyer, Hossein S. Aghamiry, Alexander Arnold, Lene Änne Böhne, Jakob Jordan, Oliver Boehm, Agnes K. Boehm, Steffen Görner, Jakob Schattenfroh, Yanglei Wu, Pedro Augusto Dantas de Moraes, Johann Pratschke, Jürgen Braun, Igor M. Sauer, Jing Guo, Ingolf Sack, Karl H. Hillebrandt   +19 more
wiley   +1 more source

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  

Simulation Modelling on Space Vector Modulated Quasi Z-Source Inverter Fed PMSM

, 2014
: A three level inverters with single quasi z-source fed PMSM motor drive is proposed in this project.The proposed inverter has the main features in that the output voltage can be bucked or boosted and in-phase with the input voltage.
Dr. T. Govindaraj, Ms. P. Suganya
core  

Near‐Unity Selectivity Inversion Between CO2 Electroreduction and H2 Evolution via Atomic Coordination Editing

Advanced Science, EarlyView.
Atomic coordination editing functions as an on/off switch that toggles single‐atom catalysts between CO2 electroreduction and hydrogen evolution. ABSTRACT Precise atomic coordination editing of single‐atom catalysts (SACs) provides an effective strategy to tune their electronic structures and catalytic selectivity. Yet, achieving near‐unity selectivity
Yukun Zhao, Yuanyuan He, Mengyu Duan, Peng Yin, Jinxing Chen, Xu Han, Jie Yang, Yulin Wang, Xingjie Fu, Shibo Xi, Chuncheng Chen, Jiong Lu   +11 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

Quasi Z source inverter

International Journal of Computer Sciences and Engineering, 2019
Sukhdev. N.Joshi, R.D. Bhagiya
openaire   +1 more source

Critical Parameter Analysis and Design of the Quasi-Z-Source Inverter

, 2019
The quasi-Z-source inverter (qZSI) can operate as a single-stage buck-boost converter with continuous input currents for renewable energy applications.
Dmitri Vinnikov, Elizaveta Liivik, Liivik, Elizaveta, Wenjie Liu, Yang, Yongheng; id_orcid, Yongheng Yang, Blaabjerg, Frede; id_orcid, Liu, Wenjie, Frede Blaabjerg, Vinnikov, Dmitri   +9 more
core   +1 more source

A Periosteum‐Inspired Janus Piezoelectric Scaffold Using Bioenergetic‐Driven H‐Type Vascularization for Diabetic Bone Regeneration

Advanced Science, EarlyView.
A periosteum‐inspired Janus piezoelectric scaffold converts micromechanical forces into electrical signals and synergizes with controlled resveratrol release. This dual action reprograms endothelial metabolism, drives H‑type vessel formation, and restores bone–vessel coupling in diabetic bone defects.
Kai Wang, Kai Jiang
wiley   +1 more source

Current-Prediction-Controlled Quasi-Z-Source Cascaded Multilevel Photovoltaic Inverter

To address problems that traditional two-stage inverters suffer such as high cost, low efficiency, and complex control, this study adopts a quasi-Z-source cascaded multilevel inverter.
Ningzhi Jin, Jiaxin Jiang, Shanshan Lei
core   +1 more source

Neutral point clamped quasi Z source inverter for photovoltaic systems

, 2019
Multilevel inverters are becoming popular for power conversion in renewable energy systems, AC-DC hybrid micro grids etc. The voltage stress and inrush current through these inverter leg switches are quite higher as compared to the load ratings which ...
M. Aravindan,, Arumugam, M., V. Saravanan, Saravanan, V., Aravindan, M., M. Aravindan, Balaji, V., M. Arumugam, V. Balaji, V. Balaji,   +9 more
core   +1 more source