Results 51 to 60 of about 448,431 (274)

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Higher-Order Dynamic Mode Decomposition to Identify Harmonics in Power Systems

Energies
The proliferation of renewable energy sources and distributed generation systems interfaced to the grid by power electronics systems is forcing us to better understand the issues arising due to the quality of electrical signals generated through these ...
Aboubacar Abdou Dango, Innocent Kamwa, Himanshu Grover, Alexia N’Dori, Alireza Masoom   +4 more
doaj   +1 more source

A Fast Time-Domain Current Harmonic Extraction Algorithm for Power Quality Improvement Using Three-Phase Active Power Filter

IEEE Access, 2020
Harmonic current estimation is the key aspect of Active Power Filter (APF) control algorithms to generate a reference current for harmonic compensation.
Muhammad Kashif, M. J. Hossain, Edstan Fernandez, Seyedfoad Taghizadeh, Vivek Sharma, S. M. Nawazish Ali, Usama Bin Irshad   +6 more
doaj   +1 more source

Angular dependence of novel magnetic quantum oscillations in a quasi-two-dimensional multiband Fermi liquid with impurities [PDF]

, 2001
The semiclassical Lifshitz-Kosevich-type description is given for the angular dependence of quantum oscillations with combination frequencies in a multiband quasi-two-dimensional Fermi liquid with a constant number of electrons.
Alexandrov, A. S., Bratkovsky, A. M.
core   +2 more sources

Acoustic Measures Capture Speech Dysfunction in Spinocerebellar Ataxia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxias (SCA) are hereditary cerebellar degenerative disorders with a common feature of dysarthria, involving impaired phonatory and articulatory control of speech, thereby affecting social communication. In this study, we investigated whether acoustic measures could objectively measure speech dysfunction and identify
Zena Fadel, Charlotte Hennessey, Hannah Lee, Pia Parekh, Sheng‐Han Kuo, Ami Kumar   +5 more
wiley   +1 more source

Power Quality Enhancement Using Power Balance Theory Based DSTATCOM

Advances in Electrical and Electronic Engineering, 2016
The DSTATCOM (Distributed Static Compensator) is used for current harmonic mitigation, Power Factor Correction (PFC), reactive power compensation, load balancing and neutral current compensation in the Power Distribution System (PDS).
Jampana Bangarraju, Veeramalla Rajagopal, Askani Jaya Laxmi   +2 more
doaj   +1 more source

Assessing the effects of power quality on partial discharge behaviour through machine learning [PDF]

, 2010
Partial discharge (PD) is commonly used as an indicator of insulation health in high voltage equipment, but research has indicated that power quality, particularly harmonics, can strongly influence the discharge behaviour and the corresponding pattern ...
Bahadoorsingh, S., Catterson, V.M., McArthur, S.D.J., Rowland, S.M., Rudd, S.E.   +4 more
core  

High order vibration modes of glass embedded AgAu nanoparticles

, 2009
High resolution low frequency Raman scattering measurements from embedded AgAu nanoparticles unveil efficient scattering by harmonics of both the quadrupolar and the spherical modes.
Adichtchev, S., Bachelier, G., Duval, E., Etienne, S., Mermet, A., Saviot, L., Sirotkin, S., Stephanidis, B.   +7 more
core   +3 more sources

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

An electro-thermal modeling of distribution transformer for hottest spot evaluation under photovoltaic-induced harmonics

International Journal of Renewable Energy Development
Elevated winding insulation temperature, driven by harmonic distortions, is a key factor in transformer lifespan reduction. Conventional models often oversimplify the effect of combined current and voltage harmonics.
Muhammad Haziq Mohd Wazir, Dalila Mat Said, Norazliani Md Sapari, Mohamed Shahriman Mohamed Yunus, Zaris Izzati Mohd Yassin   +4 more
doaj   +1 more source