Results 81 to 90 of about 831 (269)

Selective harmonic elimination method for unequal DC sources of multilevel inverters

Automatika, 2019
This paper presented an analytical and closed-form solution for the harmonic contents that were injected in the five-level inverters from asymmetrical DC sources or batteries which were suitable for renewable energy sources.
Mahrous Ahmed, Mohamed Orabi, Sherif Ghoneim, Mosleh Alharthi, Farhan Salem, Bassem Alamri, Saad Mekhilef   +6 more
doaj   +1 more source

Neutrophil‐Mimetic MRI Enables Ultra‐Early Detection of Vascular Inflammation After Stroke

Advanced Healthcare Materials, EarlyView.
In this study, we developed neutrophil‐mimetic MRI probes that detect ultra‐early neuroinflammation following ischemic stroke by targeting E‐selectin. Within seconds of their injection, these microparticles mimic initial leukocyte adhesion to the activated cerebral endothelium.
Marion Isabelle Morvan, Damien Levard, Eloïse Lemarchand, Amal Boublay, Charly Helaine, Jolan Malherbe, Mikaël Naveau, Didier Goux, Igor Khalin, Ankita Talukdar, Cheun Pelleter, Charlène Jacqmarcq, Erwan Baudron, Isabelle Bardou, Sara Martinez de Lizarrondo, Maxime Gauberti, Denis Vivien, Antoine Philippe Fournier   +17 more
wiley   +1 more source

Particle swarm optimization effectiveness for selectiveharmonic elimination in multilevel inverters at varyingoutput levels

Majlesi Journal of Electrical Engineering
Multilevel inverters (MLI) play a pivotal role in diverse applications, notably solar power generation, owing to their capacity for generating high-quality, multiple-level output voltages with reduced total harmonic distortions (THD) in comparison to ...
Muhammad Najwan Hamidi, Dahaman Ishak
doaj   +1 more source

Experimental Investigation and Comparative Evaluation of Standard Level Shifted Multi-Carrier Modulation Schemes With a Constraint GA Based SHE Techniques for a Seven-Level PUC Inverter

IEEE Access, 2019
This paper investigates a reduced switch count topology for seven-level single-phase voltage-source inverter, nomenclatures as asymmetrical holding capacitor or also known as asymmetrical flying level capacitor or packed U-cell (PUC).
Atif Iqbal, Mohammad Meraj, Mohd Tariq, Kaif Ahmed Lodi, Ali I. Maswood, Syed Rahman   +5 more
doaj   +1 more source

Immunoinflammatory Mechanisms and Biocompatibility of Bioactive Dental Biomaterials: From Fundamental Insights to Clinical Translation

Advanced Healthcare Materials, EarlyView.
Surface‐host dialogue at the implant interface governs biological fate and osseointegration. Surface physicochemical properties of titanium (Ti) dental implants, including microgrooves, nanopatterns, nanotopography, roughness, and wettability, modulate the initial adsorption of proteins and the formation of a dynamic biointerface.
Daniela Moreira Cunha, Amanda Paino Santana, Marta Maria Alves Pereira, Mariana Martins Guerreiro, Jose Mauro Granjeiro, Jamil Awad Shibli, Jeroen J. J. P. van den Beucken, Anton Sculean, Rafael Scaf de Molon, Erica Dorigatti de Avila   +9 more
wiley   +1 more source

Archimedes Optimization Algorithm Based Selective Harmonic Elimination in a Cascaded H-Bridge Multilevel Inverter

, 2021
This paper presents the Archimedes optimization algorithm to eliminate selective harmonics in a cascaded H-bridge (CHB) multilevel inverter (MLI). The foremost objective of the selective harmonic elimination (SHE) is to eliminate lower order harmonics by
Adamali Shah Noor Mohamed, Rashid Ahmed Khan, Seerin Ahmad, Mohammad Irfan Sarwar, Adil Sarwar, Mohammad Zaid, Shoeb Azam Farooqui, Mohd Tariq, Shafiq Ahmad   +8 more
core   +1 more source

Natural Biomaterials for Osteochondral Repair: From Source to Strategy

Advanced Healthcare Materials, EarlyView.
Biological origin‐guided overview of natural biomaterials and therapeutic strategies for osteochondral tissue engineering. The circular diagram categorizes representative materials and strategies into plant/algae‐derived, microbial‐derived, animal‐derived, and human‐derived sources, centered on an osteochondral defect repair model.
Hengyu Liu, Hanyang Zhang, Wenbo Yang, Hao Chen, Jincheng Wang, Fei Chang   +5 more
wiley   +1 more source

Comparative analysis of numerical, evolutionary and metaheuristic methods for experimental implementation of selective harmonic elimination in a five-level emerging inverter

Electrical engineering & Electromechanics
Introduction. Multilevel inverters (MLIs) are widely used in renewable energy conversion and high-performance power applications due to their ability to generate output voltages with low harmonic distortion and reduced switching stress.
M. Naidji, A. E. Toubal Maamar, M. Boudour, A. Garmat, A. Aissa-Bokhtache   +4 more
doaj   +1 more source

Selective Harmonic Elimination in a Wide Modulation Range Using Modified Newton–Raphson and Pattern Generation Methods for a Multilevel Inverter

Energies, 2018
Considering the aim of having low switching losses, especially in medium-voltage and high-power converters, the pre-programmed pulse width modulation technique is very useful because the generated harmonic content can be known in advance and optimized ...
Mohammed Al-Hitmi, Salman Ahmad, Atif Iqbal, Sanjeevikumar Padmanaban, Imtiaz Ashraf   +4 more
doaj   +1 more source

Development of an Enhanced Selective Harmonic Elimination for a Single-Phase Multilevel Inverter with Staircase Modulation

, 2022
A low device switching frequency is recommended for the operation of multilevel inverters (MLIs) to achieve reduced switching losses. Selective harmonic elimination (SHE) and total harmonic distortion (THD) minimization are the two primary switching ...
Anilkumar Chappa, K. Dhananjay Rao, Taha Selim Ustun, Subhojit Dawn, Govind S.   +4 more
core   +1 more source