Results 71 to 80 of about 2,976 (300)

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim   +21 more
wiley   +1 more source

Application of Static Var Compensator in Songhe Coal Mine

open access: yesGong-kuang zidonghua, 2010
In order to solve problems that traditional stationary reactive var compensator only compensates power factor to some extent and cannot eliminate higher harmonic pollution of power network caused by soft starters of high power loads of coal mine, the ...
DONG Jun, CHEN Tia
doaj  

STATCOM for Dynamic Performance Optimization of Grid Connected Wind Power System [PDF]

open access: yesIraqi Journal for Electrical and Electronic Engineering, 2013
Large disturbances in an induction generator-based wind system necessitate rapid compensation for the reactive power. This article addresses the application of Static Synchronous Compensator (STATCOM) in optimizing the performance of grid connected ...
Ahmed AbdElmalek AbdElHafez   +2 more
doaj  

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

open access: yesAdvanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk   +6 more
wiley   +1 more source

Measurement-Based Analysis of Static Var Compensator Effects in Industrial Rolling Mill Grids

open access: yesEnergies
Power quality is a continuous concern in industry, especially in steel mills operating with nonlinear, fluctuating, and unbalanced loads. This paper investigates the influence of a Static Var Compensator (SVC) on power quality parameters in a hot ...
Petru Ivascanu   +2 more
doaj   +1 more source

Automatic reactive power compensator: An open loop approach

open access: yes, 2010
This thesis was submitted for the degree of Master of Philosophy and awarded by Brunel University.Over the last few years the sudden increase of the use of non-linear loads such as personal computers and TV sets created a Power Factor (PF) problem ...
Rahim, Abdul-Majeed
core  

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

Integrated Field‐Free SOT Domain‐Wall Synapses and MTJ Stochastic Neurons for Hardware Boltzmann Machines

open access: yesAdvanced Functional Materials, EarlyView.
Field‐free spin‐orbit torque domain‐wall synapses integrated with stochastic MTJ neurons enable compact hardware Boltzmann machines. Leveraging intrinsic stochasticity and multi‐level conductance, the system achieves efficient probabilistic learning with high accuracy, demonstrating a scalable spintronic platform for energy‐efficient edge AI.
Aijaz H. Lone   +8 more
wiley   +1 more source

Virtual Laboratory for Power Electronic Based Reactive Power Compensators

open access: yesTehnički vjesnik, 2018
The practical application is important in engineering education. However, in some cases, such as fund deficiency, practical applications may not be possible. In addition, this case restricts closely to pursue the novel technologies. Depending on developments in power electronics and microprocessor fields, use of Flexible Alternating Current ...
Coteli, Resul, Gokcan, Ali Osman
openaire   +5 more sources

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