Results 41 to 50 of about 1,054,199 (245)

Voltage Weak DC Distribution Grids [PDF]

Electric Power Components and Systems, 2017
AbstractThis paper describes the behavior of voltage weak DC distribution systems. These systems have relatively small system capacitance. The size of system capacitance, which stores energy, has a considerable effect on the value of fault currents, control complexity, and system reliability.
Tsegay Gebremedhin Hailu, Laurens Mackay, Laura M. Ramirez-Elizondo, Jan A. Ferreira   +3 more
openaire   +3 more sources

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

FEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

Coordinated Control of Active and Reactive Power Compensation for Voltage Regulation with Enhanced Disturbance Rejection Using Repetitive Vector-Control

Energies, 2020
Voltage profile is one of many aspects that affect power quality in low-voltage distribution feeders. Weak grids have a typically high line impedance which results in remarkable voltage drops.
Felipe J. Zimann, Eduardo V. Stangler, Francisco A. S. Neves, Alessandro L. Batschauer, Marcello Mezaroba   +4 more
doaj   +1 more source

Robust PLL Synchronization Unit for Grid-Feeding Converters in Micro/Weak Grids

IEEE Transactions on Industrial Informatics, 2023
A grid-feeding voltage source converter (GFD-VSC) requires a phase-locked loop (PLL) synchronization unit to be connected to the grid. The PLL critically affects the dynamic performance and stability of the GFD-VSC. In particular, a PLL with in-loop filtering, for working under distorted/polluted conditions, possesses a narrow stability margin and ...
Eskandari, M, Savkin, AV
openaire   +3 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Overview on Transactive Energy—Advantages and Challenges for Weak Power Grids

Energies, 2023
This document lists some challenges that researchers face when implementing transactive energy in weak power grids. These challenges often include high voltage fluctuations, limited generation, high line loadability, and unbalanced grids.
Yuly V. Garcia, Oscar Garzon, Carlos J. Delgado, Jan L. Diaz, Cesar A. Vega Penagos, Fabio Andrade, Adriana C. Luna, J. C. Hernandez   +7 more
doaj   +1 more source

Machine Learning Approaches to Improving the Transient Stability of Voltage-Source Converters in Weak Grids

, 2023
With the proliferation of converter-interfaced generation in modern power systems, grid-forming converters are viewed as a solution to improve system stability and resilience in weak power grids.
Sepehr, Amir
core   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

Single-Sensor Inverter-Side Current Feedback With Band-Pass-Filter Active Damping for Robust Control of LCL Grid-Connected Inverters Under Weak-Grid Conditions

IEEE Open Journal of Power Electronics
LCL-filtered grid-connected voltage-source inverters provide excellent switching-harmonic attenuation, but their resonant dynamics combined with digital delays can destabilize conventional current control.
Youssef Lamkharbach, Jerome Cros, Ahmed Chebak   +2 more
doaj   +1 more source

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 more
wiley   +1 more source