Results 101 to 110 of about 8,482 (293)

In Vivo Microplastic Detection With Photoacoustic Imaging

open access: yesAdvanced Science, EarlyView.
ABSTRACT Microplastics are posing an escalating threat to both ecological systems and human health. Yet, current methods for investigating their bioaccumulation are highly invasive, requiring destructive analysis of ex vivo tissues via mass spectrometry, dye labelling, or Raman microspectroscopy.
Joseph C. Bear   +9 more
wiley   +1 more source

Paternal Circadian Disruption Impairs Offspring Cognition via Sperm microRNAs

open access: yesAdvanced Science, EarlyView.
Paternal circadian disruption remodels the sperm small RNA payload, elevating miR‐92a‐3p/miR‐25‐3p levels and perturbing early embryonic gene regulatory programs. Microinjection experiments and single‐embryo transcriptomics reveal sex‐specific developmental vulnerabilities, ultimately impairing offspring hippocampal synaptic plasticity and cognition ...
Kexin Zou   +22 more
wiley   +1 more source

Grid-Forming Inverter Integration for Resilient Distribution Networks: From Transmission Grid Support to Islanded Operation

open access: yesElectricity
The progressive replacement of synchronous machines by inverter-based resources (IBRs) reduces system inertia and short-circuit strength, making power systems more vulnerable to frequency and voltage instabilities.
Mariajose Giraldo-Jaramillo   +1 more
doaj   +1 more source

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

open access: yesAdvanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu   +5 more
wiley   +1 more source

Reviewing Control Paradigms and Emerging Trends of Grid-Forming Inverters—A Comparative Study

open access: yesEnergies
Grid-forming inverters (GFMs) have emerged as crucial components in modern power systems, facilitating the integration of renewable energy sources and enhancing grid stability. The significance of GFMs lies in their ability to autonomously establish grid
Khaliqur Rahman   +6 more
doaj   +1 more source

Design of a robust digital current controller for a grid connected interleaved inverter

open access: yes
This paper is concerned with the design and practical implementation of a robust digital current controller for a threephase voltage source grid-connected interleaved inverter.
Sharkh, S. M., Abu-sara, M. A.
core  

Stability boundary analysis of grid-forming and grid-following inverters

open access: yes
Stability issues and oscillations associated with inverter-based resources (IBRs) are of increasing concern in inverter-dominated power systems. This study explores the stability boundary of grid-following (GFL) and grid-forming (GFM) inverters and ...
Batzelis, Efstratios   +4 more
core   +1 more source

Dissecting the Ecological Structure of Health and Disease in the Global Gut Microbiome

open access: yesAdvanced Science, EarlyView.
We introduce Wiredancer, a framework that identifies three continuous ecological factors of the gut microbiota. These factors exhibit distinct patterns across health and disease, jointly capturing disrupted ecological stability and offering a new perspective for precision diagnostics and therapeutic strategies.
Baoyuan Zhu   +19 more
wiley   +1 more source

Bridging control paradigms: a state-of-the-art review of grid-forming BESS-STATCOMs for enhanced power system stability

open access: yesFrontiers in Energy Research
Power-electronic inverters play a central role in modern power systems due to the increasing penetration of renewable energy sources such as solar photovoltaics, wind generation, and battery energy storage.
Shriram S. Rangarajan   +7 more
doaj   +1 more source

Microgrid power electronic converters: state of the art and future challenges

open access: yes, 2009
This paper presents a review of the state of the art of power electric converters used in microgrids. The paper focuses primarily on grid connected converters.
Sharkh, S.M.   +4 more
core  

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