Results 81 to 90 of about 13,409 (288)

Grid-Forming Control for Solar Generation System with Battery Energy Storage

open access: yesEnergies
Solar generation systems with battery energy storage have become a research hotspot in recent years. This paper proposes a grid-forming control for such a system.
Yupeng Cai   +7 more
doaj   +1 more source

AC voltage regulation of a bidirectional high-frequency link converter using a deadbeat controller [PDF]

open access: yes, 2006
This paper presents a digital controller for AC voltage regulation of a bidirectional high-frequency link (BHFL) inverter using Deadbeat control. The proposed controller consists of inner current loop, outer voltage loop and a feed-forward controller ...
Elbuluk, M. E.   +3 more
core  

Active Learning‐Accelerated Discovery of Fibrous Hydrogels with Tissue‐Mimetic Viscoelasticity

open access: yesAdvanced Functional Materials, EarlyView.
Active learning accelerates the design of fibrous hydrogels that mimic the viscoelasticity of native tissues. By integrating multi‐objective optimization and closed‐loop experimentation, this approach efficiently identifies optimal formulations from thousands of possibilities and decouples elasticity and viscosity. The resulting hydrogels offer tunable
Zhengkun Chen   +11 more
wiley   +1 more source

Grid Interconnection of Solar and Battery System Using an Asymmetrical T-Type Multilevel Inverter to improve Conversion Efficiency with Reduced THD

open access: yesIranian Journal of Electrical and Electronic Engineering, 2021
A three-phase dual-port T-type asymmetrical multilevel inverter (ASMLI) using two sources, solar forming the high voltage level and the battery forming the low voltage level, is considered for grid interconnection. A vertical shifted SPWM is used for the
S. K. Gudey, S. Andavarapu
doaj  

Aqueous Two‐Phase Bioinks for Discrete Packing and Compartmentalization of 3D Bioprinted Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
Aqueous two‐phase systems (ATPS) enable the formation of biomimetic interfaces crucial for tissue engineering. However, clinical translation remains limited by the challenge of precisely controlling cellular compartmentalization. Here, we developed ATPS biomaterial inks for 3D bioprinting allowing tuneable droplet formation via NaCl modulation.
Martina Marcotulli   +17 more
wiley   +1 more source

SiO2‐CaOCME/Poly(Tetrahydrofuran)/Poly(Caprolactone) 3D‐Printed Scaffolds Drive Human‐Bone Marrow Stromal Cell Osteogenic Differentiation

open access: yesAdvanced Healthcare Materials, EarlyView.
3D printed hybrid scaffolds combining bioactive silica–calcium chemistry with elastic polymers guide human bone stem cells to form bone. The scaffolds support cell survival, organization, and invasion while releasing osteogenic ions. Together, architecture and composition drive bone‐specific gene expression, extracellular matrix organization, and ...
David R. Sory   +3 more
wiley   +1 more source

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum   +5 more
wiley   +1 more source

Comparative Impedance Characteristic Analysis of Grid‐Following and Grid‐Forming Inverters

open access: yesIET Renewable Power Generation
This paper comprehensively analyses the impedance characteristics of grid‐following (GFL) and grid‐forming (GFM) inverters at around synchronous frequency areas considering various operating and grid connection conditions and control settings.
Yonggang Zhang   +3 more
doaj   +1 more source

Analytical modelling of three-phase four-wire grid-connected inverter under unbalanced conditions applying digital controllers

open access: yesSystems Science & Control Engineering
This paper presents an analytical model for a two-level three-phase four-wire grid-connected voltage source converter (TGC-VSC) controlled by digital pulse-width modulation (DPWM).
Claudionor F. do Nascimento   +4 more
doaj   +1 more source

Mapping Nanoscale Protein‐Corona Kinetics of DoE‐Optimized Perfluorocarbon Encapsulated‐PLGA Nanoparticles by In Situ, Time‐Resolved Synchrotron SAXS

open access: yesAdvanced Healthcare Materials, EarlyView.
A two‐phase workflow (OFAT screening followed by central composite design) maps how processing variables tune PFCE‐PLGA nanoparticle size, dispersity, surface charge, loading, and 19F‐MRI signal. In situ, time‐resolved synchrotron SAXS tracks albumin‐corona growth on intact dispersions and reveals PFCE‐dependent adsorption pathways.
Joice Maria Joseph   +11 more
wiley   +1 more source

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