Results 21 to 30 of about 11,015,118 (220)

On large deviations for random sums of the squares of weighted Gaussian random variables

open access: yesLietuvos Matematikos Rinkinys, 2015
The paper considers normal approximation to the distribution of random sums of the squares of independent weighted Gaussian random variables (r.vs.) taking into consideration large deviations in the Cramér zone.
Aurelija Kasparavičiūtė   +1 more
doaj   +1 more source

Coordination of Power-System Stabilizers and Battery Energy-Storage System Controllers to Improve Probabilistic Small-Signal Stability Considering Integration of Renewable-Energy Resources

open access: yesApplied Sciences, 2019
This paper proposes a probabilistic method to obtain optimized parameter values for different power-system controllers, such as power-system stabilizers (PSSs) and battery energy-storage systems (BESSs) to improve probabilistic small-signal stability ...
Samundra Gurung   +2 more
doaj   +1 more source

Partial Discharge Pulse Segmentation Approach of Converter Transformers Based on Higher Order Cumulant

open access: yesEnergies, 2022
As one of the most effective methods to detect the partial discharge (PD) of transformers, high frequency PD detection has been widely used. However, this method also has a bottleneck problem; the biggest problem is the mixed pulse interference under the
Dingqian Yang   +6 more
doaj   +1 more source

Cumulative dip plot method [PDF]

open access: yesBulletin of the Geological Society of Malaysia, 1997
It is usual for a well to encounter faults, unconformities and sequence boundaries along its depth. Identification of these features based on the scatter of the 'tadpoles' from the diplog data alone may be difficult. To assist this identification, a cumulative dip plot, a crossplot of bedding plane orientation against depth was used.
openaire   +1 more source

A new method for fast computing unbiased estimators of cumulants [PDF]

open access: yesStatistics and Computing, 2008
A table with computational times, obtained with the forthcoming MathStatica release 2 (Colin Rose, private communication), has been added.
Elvira Di Nardo   +2 more
openaire   +4 more sources

PERFECTA Loaded Lipid Cubosomes for <sup>19</sup>F-MRI: Physico-Chemical Characterization. [PDF]

open access: yesChemistry
Phytantriol‐based cubosomes loaded with PERFCTA, a fluorinated MRI probe, were developed as promising systems for imaging and drug delivery. The nanoparticles showed high PERFECTA encapsulation efficiency, strong fluorine MRI signals, and optimal colloidal stability in biological media.
Milesi P   +10 more
europepmc   +2 more sources

Direction-of-Arrival Estimation Based on Sparse Representation of Fourth-Order Cumulants

open access: yesIEEE Access, 2023
The actual underwater environmental noise is often spatial colored, which results in severe degradation of the performance of the underwater direction of arrival (DOA) estimation method based on the assumption of white noise.
Chuanxi Xing, Saimeng Dong, Zhiliang Wan
doaj   +1 more source

Absorption and Circular Dichroism Spectra of Molecular Aggregates with the Full Cumulant Expansion. [PDF]

open access: yes, 2020
The exciton Hamiltonian of multichromophoric aggregates can be probed by spectroscopic techniques such as linear absorption and circular dichroism. In order to compare calculated Hamiltonians to experiments, a lineshape theory is needed, which takes into
Lorenzo, Cupellini   +2 more
core   +1 more source

Mode Separation for Multimodal Ultrasonic Lamb Waves Using Dispersion Compensation and Independent Component Analysis of Forth-Order Cumulant

open access: yesApplied Sciences, 2019
Ultrasonic Lamb wave testing has been successfully applied in nondestructive testing. However, because of Lamb wave multimodal and dispersion characteristics, the received signals are often multimodal and overlapping, which makes them very complicated ...
Xiao Chen, Dandan Ma
doaj   +1 more source

Sixth-Second Order Normalized Cumulant Blind Equalization Algorithm Based on Oversampling

open access: yesDianxin kexue, 2014
Most existing blind equalization algorithms rely on partial or complete channel identification, but the channel order estimation is always a difficult task.
Xiaoqin Zhang, Yongsheng Hu, Liyi Zhang
doaj   +2 more sources

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