Results 21 to 30 of about 1,628,623 (339)

Rapid and label-free identification of single leukemia cells from blood in a high-density microfluidic trapping array by fluorescence lifetime imaging microscopy. [PDF]

open access: yes, 2018
The rapid screening and isolation of single leukemia cells from blood has become critical for early leukemia detection and tumor heterogeneity interrogation. However, due to the size overlap between leukemia cells and the more abundant white blood cells (
Digman, Michelle A   +4 more
core   +1 more source

Active and Reactive Power Control for Dual Excited Synchronous Generator in Wind Applications

open access: yesIEEE Access, 2022
This paper presents a dual excited synchronous generator (DESG) as a novel suitable alternative generation system for wind energy conversion systems. A new control strategy was proposed for the DESG wind turbine system.
H. M. Yassin   +2 more
doaj   +1 more source

Discontinuities in the Electromagnetic Fields of Vortex Beams in the Complex Source/Sink Model [PDF]

open access: yes, 2017
An analytical discontinuity is reported in what was thought to be the discontinuity-free exact nonparaxial vortex beam phasor obtained within the complex source/sink model.
Pi, Liang-Wen   +2 more
core   +3 more sources

Improved BPSO for optimal PMU placement [PDF]

open access: yes, 2015
Optimal phasor measurement unit (PMU) placement involves the process of minimizing the number of PMU needed while ensuring entire power system network completely observable.
Rahman, NHA, Theodoridis, M, Zobaa, AF
core   +1 more source

Two modified DFT‐based algorithms for fundamental phasor estimation

open access: yesIET Generation, Transmission & Distribution, 2022
The discrete Fourier transform (DFT) is a powerful phasor estimation algorithm conventionally used in digital relaying applications. The DFT‐based phasor estimation is usually accompanied by oscillatory error due to the presence of the decaying DC (DDC ...
Saeed Afrandideh   +2 more
doaj   +1 more source

Research on Discrete Fourier Transform-Based Phasor Measurement Algorithm for Distribution Network under High Frequency Sampling

open access: yesEnergies, 2018
This paper proposes a phasor measurement algorithm that is suitable for a distribution network. Under the condition of fixed interval and high frequency sampling, the algorithm uses a dynamic calibration factor to correct the traditional Discrete Fourier
Zhiguo Zhou   +4 more
doaj   +1 more source

A New Phasor Estimator for PMU Applications: P Class and M Class

open access: yesJournal of Modern Power Systems and Clean Energy, 2020
Phasor measurement units (PMUs) are fundamental tools in the applications of modern power systems, where synchronized phasor estimations are needed. The accuracy and dynamic performance requirements for phasor, frequency, and rate of change of frequency (
Jose R. Razo-Hernandez   +4 more
doaj   +1 more source

Time-of-Flight Imaging in Fog Using Polarization Phasor Imaging

open access: yesSensors, 2022
Due to the light scattered by atmospheric aerosols, the amplitude image contrast is degraded and the depth measurement is greatly distorted for time-of-flight (ToF) imaging in fog. The problem limits ToF imaging to be applied in outdoor settings, such as
Yixin Zhang   +3 more
doaj   +1 more source

A Shift in Central Metabolism Accompanies Virulence Activation in Pseudomonas aeruginosa. [PDF]

open access: yes, 2020
The availability of energy has significant impact on cell physiology. However, the role of cellular metabolism in bacterial pathogenesis is not understood.
Chacko, Jenu V   +4 more
core   +1 more source

A Review of Dynamic Phasor Estimation by Non-Linear Kalman Filters

open access: yesIEEE Access, 2022
Phasor estimation under dynamic conditions has been under study recently by relaxing the amplitude and phase of the static phasor. This paper will review some methods to estimate dynamic phasor by nonlinear Kalman filters.
Jalal Khodaparast
doaj   +1 more source

Home - About - Disclaimer - Privacy