Results 11 to 20 of about 120,328 (260)

A New Fractional-Order Virtual Inertia Support Based on Battery Energy Storage for Enhancing Microgrid Frequency Stability

open access: yesFractal and Fractional, 2023
Microgrids have a low inertia constant due to the high penetration of renewable energy sources and the limited penetration of conventional generation with rotating mass. This makes microgrids more susceptible to frequency stability challenges.
Morsy Nour   +6 more
doaj   +1 more source

An Online Archimedes Optimization Algorithm Identifier-Controlled Adaptive Modified Virtual Inertia Control for Microgrids

open access: yesEnergies, 2022
Single widespread employment of renewable energy sources (RESs) contributes to the shortage in the inertia of the microgrid (MG). After this, frequency stability may regress as a result of power imbalance or minor load fluctuations.
Asmaa Fawzy   +5 more
doaj   +1 more source

Provision of Frequency Stability of an Islanded Microgrid Using a Novel Virtual Inertia Control and a Fractional Order Cascade Controller

open access: yesEnergies, 2021
Nowadays, the renewable energy sources in microgrids (MGs) have high participation to supply the consumer’s demand. In such MGs, the problems such as the system frequency stability, inertia, and damping reduction are threatened.
Soroush Oshnoei   +4 more
doaj   +1 more source

Multi-omics of in vitro aortic valve calcification

open access: yesFrontiers in Cardiovascular Medicine, 2022
Heart valve calcification is an active cellular and molecular process that partly remains unknown. Osteogenic differentiation of valve interstitial cells (VIC) is a central mechanism in calcific aortic valve disease (CAVD).
Daria Semenova   +19 more
doaj   +1 more source

Vic’s Story [PDF]

open access: yes, 2021
AbstractIn this chapter, Vic, a project participant, writes about getting married and becoming a father after having acquired a serious physical disability in an accident. He writes about how he and his wife underwent IVF to have 2 children. He also writes about the at times inappropriate reactions and questions from others about his wife’s pregnancy ...
openaire   +1 more source

Transmissible Mitochondrial Hypovirulence in a Natural Population of Cryphonectria parasitica

open access: yesMolecular Plant-Microbe Interactions, 2000
A cytoplasmically transmissible hypovirulence syndrome has been identified in virus-free strains of the chestnut blight fungus Cryphonectria parasitica isolated from healing cankers on American chestnut trees in southwestern Michigan.
Dipnath Baidyaroy   +3 more
doaj   +1 more source

Investigating Dual-Energy CT Post-Contrast Phases for Liver Iron Quantification: A Preliminary Study

open access: yesDose-Response, 2021
Background and Purpose: Quantification of hepatic virtual iron content (VIC) by using Multidetector Dual Energy Computed Tomography (DECT) has been recently investigated since this technique could offer a good compromise between accuracy and non ...
Luca Basso   +5 more
doaj   +1 more source

Simulating the Surface Solar Irradiance of Africa Using a Regional Climate Model: Influence of Vegetation-Runoff Coupled System

open access: yesEngineering Proceedings, 2022
Surface solar irradiance (SSI) is influenced by important factors such as total cloud cover and aerosols. However, the influence of vegetation-runoff coupled system on SSI has not been investigated yet.
Samy A. Anwar
doaj   +1 more source

An experimental seasonal hydrological forecasting system over the Yellow River basin – Part 2: The added value from climate forecast models [PDF]

open access: yesHydrology and Earth System Sciences, 2016
This is the second paper of a two-part series on introducing an experimental seasonal hydrological forecasting system over the Yellow River basin in northern China. While the natural hydrological predictability in terms of initial hydrological conditions 
X. Yuan
doaj   +1 more source

Variant Interpretation for Cancer (VIC): a computational tool for assessing clinical impacts of somatic variants

open access: yesGenome Medicine, 2019
Background Clinical laboratories implement a variety of measures to classify somatic sequence variants and identify clinically significant variants to facilitate the implementation of precision medicine.
Max M. He   +8 more
doaj   +1 more source

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