Results 51 to 60 of about 3,882,562 (249)

Virtual Impedance Impact on Inverter Control Topologies [PDF]

open access: yes2018 7th International Conference on Renewable Energy Research and Applications (ICRERA), 2018
The different nature of the energy resources requires high reliable power inverters to supply regulated power to the end customer and to ease its integration within the microgrid. In this paper, modeling, design and control of inverters are presented for two different topologies.
Issa, Walid, Elkhateb, Ahmad
openaire   +2 more sources

Evaluation of Bioelectrical Impedance Analysis for Identifying Overweight Individuals at Increased Cardiometabolic Risk:A Cross-Sectional Study [PDF]

open access: yes, 2014
OBJECTIVE: To investigate whether bioelectrical impedance analysis could be used to identify overweight individuals at increased cardiometabolic risk, defined as the presence of metabolic syndrome and/or diabetes.DESIGN AND METHODS: Cross-sectional study
Lamb Maxine J. E.   +15 more
core   +1 more source

The PRIMA Thesaurus for Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa   +8 more
wiley   +1 more source

Enhanced Power Decoupling Strategy for Virtual Synchronous Generator

open access: yesIEEE Access, 2020
Power coupling caused by high impedance ratio and nonzero power angle is a crucial issue for virtual synchronous generator (VSG), which may result in output power error, slower power response and even invalid operation.
Mingxuan Li   +5 more
doaj   +1 more source

Perception of Complex Emotional Body Language of a Virtual Character [PDF]

open access: yes, 2012
Virtual characters are a common phenomenon in serious game applications, and can enrich training environments for a range of different purposes. These characters can be used in games that have been developed to help people with learning difficulties ...
Bekris, Kostas   +5 more
core   +1 more source

New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare   +5 more
wiley   +1 more source

Current limiting control method with adaptive virtual impedance for grid-forming STATCOM

open access: yesEnergy Reports, 2023
Current limiting is an important issue in the static synchronous compensator (STATCOM) with grid-forming (GFM) control. However, the conventional methods are difficult to deal with the application scenarios of different grid faults.
Zhichang Yang   +2 more
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Impedance spectroscopy for cellular and biomolecular analysis

open access: yes, 2009
The application of microfabrication technology to molecular and cell biology has motivated the rapid development of a novel class of microdevices collectively known as ‘Lab On a Chip’ devices.Impedance spectroscopy is a non-invasive, label-free ...
Malleo, Daniele
core   +1 more source

Research on frequency coupling factors and stability influencing factors of grid-forming inverters

open access: yesInternational Journal of Electrical Power & Energy Systems
This paper proposes a matrix-based impedance visualization method that treats control matrices as circuit element matrices, ultimately deriving a unified impedance model incorporating power loops, power decoupling loops, virtual impedance, voltage loops,
Xiaolei Shang   +3 more
doaj   +1 more source

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