Results 11 to 20 of about 1,782,759 (252)

Control and analysis of a unified power flow controller [PDF]

open access: yes, 1999
This paper presents a control scheme and comprehensive analysis for a unified power flow controller (UPFC) on the basis of theory, computer simulation and experiment.
Akagi, Hirofumi   +2 more
core   +1 more source

ExaGridPF: A Parallel Power Flow Solver for Transmission and Unbalanced Distribution Systems

open access: yes, 2017
This paper investigates parallelization strategies for solving power flow problems in both transmission and unbalanced, three-phase distribution systems by developing a scalable power flow solver, ExaGridPF, which is compatible with existing high ...
Bachan, John, Chan, Cy, Wang, Bin
core   +1 more source

Point estimate method for voltage unbalance evaluation in residential distribution networks with high penetration of small wind turbines [PDF]

open access: yes, 2014
Voltage unbalance (VU) in residential distribution networks (RDNs) is mainly caused by load unbalance in three phases, resulting from network configuration and load-variations.
Farrag , Mohamed Emad A.   +3 more
core   +2 more sources

Three-Phase Unbalanced Optimal Power Flow Using Holomorphic Embedding Load Flow Method [PDF]

open access: yesSustainability, 2019
Distribution networks are typically unbalanced due to loads being unevenly distributed over the three phases and untransposed lines. Additionally, unbalance is further increased with high penetration of single-phased distributed generators. Load and optimal power flows, when applied to distribution networks, use models developed for transmission grids ...
Bharath Varsh Rao   +2 more
openaire   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

An overview of out-of-step protection in power systems [PDF]

open access: yes, 2017
Power system is subjected to an extensive variety of little or bigger disturbance to the system during the operation. The power system that designed as one of the main requirement is to survive from the larger type of disturbances like faults.
Chin, Wan Ling   +5 more
core  

Reusing three-phase power-flow object components for unbalanced harmonic analysis [PDF]

open access: yes, 2006
In this paper, the harmonic penetration method is developed as a component-based application. The direct nodal voltage harmonic solution is developed as an independent software component and then integrated with existing three-phase power-flow software ...
Abdel-Akher, M.   +3 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Small scale structures in three-dimensional magnetohydrodynamic turbulence [PDF]

open access: yes, 2006
We investigate using direct numerical simulations with grids up to 1536^3 points, the rate at which small scales develop in a decaying three-dimensional MHD flow both for deterministic and random initial conditions.
A. G. Pouquet   +10 more
core   +3 more sources

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