Results 11 to 20 of about 6,830,142 (327)

Analytical Investigation of Primary Waveform Distortion Effect on Magnetic Flux Density in the Magnetic Core of Inductive Current Transformer and Its Transformation Accuracy [PDF]

open access: yesSensors
This paper analyzes how distortion in the primary current waveform affects the magnetic flux density in the magnetic core of an inductive current transformer and its transformation accuracy.
Michal Kaczmarek, Kacper Blus
doaj   +3 more sources

Concordance measure and discriminatory accuracy in transformation cure models [PDF]

open access: yesBiostatistics, 2017
Many populations of early-stage cancer patients have non-negligible latent cure fractions that can be modeled using transformation cure models. However, there is a lack of statistical metrics to evaluate prognostic utility of biomarkers in this context due to the challenges associated with unknown cure status and heavy censorship.
Yilong, Zhang, Yongzhao, Shao
openaire   +3 more sources

Sensitivity analysis and accuracy assessment of the land transformation model using cellular automata

open access: yesGIScience & Remote Sensing, 2017
This study evaluates the effects of cellular automata (CA) with different neighborhood sizes on the predictive performance of the Land Transformation Model (LTM).
Hossein Shafizadeh-Moghadam   +4 more
doaj   +2 more sources

The Effect of the Load Power Factor of the Inductive CT’s Secondary Winding on Its Distorted Current’s Harmonics Transformation Accuracy

open access: yesEnergies, 2022
In this paper, we present an investigation into the influence of the load power factor of secondary winding on the metrological performance of inductive CTs with frequencies from 50 Hz to 5 kHz of the harmonic of a transformed distorted current.
M. Kaczmarek, Piotr Kaczmarek, E. Stano
semanticscholar   +1 more source

Why Should We Test the Wideband Transformation Accuracy of Medium Voltage Inductive Voltage Transformers?

open access: yesEnergies, 2021
In this paper the results of the tests of the wideband transformation accuracy of medium voltage (MV) inductive voltage transformers (VTs) in the frequencies range from 50 Hz up to 5 kHz are presented.
M. Kaczmarek, E. Stano
semanticscholar   +1 more source

High-accuracy projector calibration method for fringe projection profilometry considering perspective transformation.

open access: yesOptics Express, 2021
Camera and projector are the key components of structured light three-dimensional (3-D) measurements, and Digital Light Processing (DLP) projector has been widely used for projecting digital structured light patterns for the measurement.
Jin Yu   +3 more
semanticscholar   +1 more source

Prediction of wax deposit thickness in waxy crude oil pipelines using improved GM(1,1) model

open access: yesFrontiers in Chemical Engineering, 2022
In this paper, the GM(1,1) model with function arccosx transformation and GM(1,1) model with function transformation are established by using arccosine function transformation method and aarccosx function transformation method, and the GM(1,1) model with
Shiqi Xu   +4 more
doaj   +1 more source

Reinforcement-Enhanced Autoregressive Feature Transformation: Gradient-steered Search in Continuous Space for Postfix Expressions [PDF]

open access: yesNeural Information Processing Systems, 2023
Feature transformation aims to generate new pattern-discriminative feature space from original features to improve downstream machine learning (ML) task performances.
Dongjie Wang   +5 more
semanticscholar   +1 more source

Impact of Box-Cox Transformation on Machine-Learning Algorithms

open access: yesFrontiers in Artificial Intelligence, 2022
This paper studied the effects of applying the Box-Cox transformation for classification tasks. Different optimization strategies were evaluated, and the results were promising on four synthetic datasets and two real-world datasets.
Luca Blum, Mohamed Elgendi, Carlo Menon
doaj   +1 more source

Nonlinearity of Magnetic Core in Evaluation of Current and Phase Errors of Transformation of Higher Harmonics of Distorted Current by Inductive Current Transformers

open access: yesIEEE Access, 2020
The novelty of the paper contributes to the increase of the reliability of the methods used for evaluation of the inductive CTs accuracy of transformation of the distorted current.
Michal Kaczmarek, Ernest Stano
doaj   +1 more source

Home - About - Disclaimer - Privacy