Results 61 to 70 of about 23,444,391 (268)

Study on mathematical model to predict aerated power consumption in a gas-liquid stirred tank

open access: yesResults in Physics, 2017
The aerated power consumption characteristics in a transparent tank with diameter of 0.3 m and flat bottom stirred by a Rushton impeller were investigated by means of experimental measurement.
Deyu Luan   +3 more
doaj   +1 more source

Iterative relaxation solution for AC optimal transmission network reconfiguration considering bus splitting

open access: yesIET Generation, Transmission & Distribution, 2021
Optimal transmission network reconfiguration is an important means to improve the economy and reliability of power grid. However, the traditional optimal transmission switching only considers the transmission line switching strategy and some approximate ...
Yaqi Sun   +5 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Novel non‐linear control of DFIG and UPFC for transient stability increment of power system

open access: yesIET Generation, Transmission & Distribution, 2022
This paper offers novel non‐linear control of a doubly fed induction generator (DFIG) and unified power flow controller (UPFC) for transient stability increment with transient energy function (TEF) and sliding mode observer in a power system.
Sadegh Ghaedi   +2 more
doaj   +1 more source

A fast linearized AC power flow-constrained robust unit commitment approach with customized redundant constraint identification method

open access: yesFrontiers in Energy Research, 2023
The large-scale integration of renewable energy resources in the power system challenges its economic and secure operation. Particularly, the increasing penetration of renewable energy will result in insufficient system voltage regulation and reactive ...
Zhiyuan Li   +5 more
doaj   +1 more source

Distribution Optimal Power Flow

open access: yes, 2007
This paper presents a new and efficient methodology for network reconfiguration with optimal power flow based on Benders Decomposition approach. The objective minimizes the power losses, balancing load among the feeders and subject to the constraints ...
H. M. Khodr, J. Pereira, M. A. Matos
core   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

Three-Stage Model to Solve the Transmission Expansion Planning and Reactive Power Supply Under Wind Generation Uncertainty

open access: yesIEEE Access
The high penetration of renewable energy is an important characteristic of modern power systems. However, the inherent intermittency nature of these sources leads to significant challenges in grid planning.
Camile Aredes Moraes   +3 more
doaj   +1 more source

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