Results 1 to 10 of about 1,039,221 (141)

Acknowledgment to Reviewers of Fractal and Fractional in 2020

open access: yesFractal and Fractional, 2021
Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that Fractal and Fractional maintains its standards for the high quality of its published papers [...]
Fractal and Fractional Editorial Office
doaj   +1 more source

The pointwise completeness and the pointwise degeneracy of linear discrete-time different fractional order systems [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
Necessary and sufficient conditions for the pointwise completeness and the pointwise degeneracy of linear discrete-time different fractional order systems are established. It is shown that if the fractional system is pointwise complete in one step (q = 1)
T. Kaczorek, Ł. Sajewski
doaj   +1 more source

A Physical Phenomenon for the Fractional Nonlinear Mixed Integro-Differential Equation Using a General Discontinuous Kernel

open access: yesFractal and Fractional, 2023
In this study, a fractional nonlinear mixed integro-differential equation (Fr-NMIDE) is presented and has a general discontinuous kernel based on position and time space.
Sharifah E. Alhazmi, Mohamed A. Abdou
doaj   +1 more source

Acknowledgement to Reviewers of Fractal Fract in 2019

open access: yesFractal and Fractional, 2020
The editorial team greatly appreciates the reviewers who have dedicated their considerable time and expertise to the journal’s rigorous editorial process over the past 12 months, regardless of whether the papers are finally published or not [...]
Fractal and Fractional Editorial Office
doaj   +1 more source

Scaled Conjugate Gradient for the Numerical Simulations of the Mathematical Model-Based Monkeypox Transmission

open access: yesFractal and Fractional, 2023
The current study presents the numerical solutions of a fractional order monkeypox virus model. The fractional order derivatives in the sense of Caputo are applied to achieve more realistic results for the nonlinear model.
Suthep Suantai   +3 more
doaj   +1 more source

Design and Simulation of Sigma-Delta Fractional-N Frequency Synthesizer for WiMAX [PDF]

open access: yesEngineering and Technology Journal, 2008
This paper presents a design and simulation of proposed frequency synthesizer whichcan be used for WiMAX. Design parameters for the proposed fractional-N PLLsynthesizer for WiMAX system are either selected from WiMAX standards oraccording to results of ...
H. T. Ziboon, H.M. Azawi
doaj   +1 more source

Random noise reduction method of complex exploration based on a fractional optimal control network

open access: yes地质科技通报, 2023
In field seismic prospecting, the existence of complex random noise strongly influences the detection of effective reflected signals and imposes adverse effects on the subsequent process of the data.
Wenbo Yang   +3 more
doaj   +1 more source

Positive electrical circuits with the chain structure and cyclic Metzler state matrices [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
The cyclicity of the state matrices of positive linear electrical circuits with the chain structure is considered. Two classes of positive linear electrical circuits with the chain structure and cyclic Metzler state matrices are analyzed.
Tadeusz Kaczorek
doaj   +1 more source

Infrared Dim and Small Target Detection Based on Greedy Bilateral Factorization in Image Sequences

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Fast and stable detection of dim and small infrared (IR) targets in complex backgrounds has important practical significance for IR search and tracking system.
Dongdong Pang   +5 more
doaj   +1 more source

A Survey of Fractional Order Calculus Applications of Multiple-Input, Multiple-Output (MIMO) Process Control

open access: yesFractal and Fractional, 2020
Multiple-input multiple-output (MIMO) systems are usually present in process systems engineering. Due to the interaction among the variables and loops in the MIMO system, designing efficient control systems for both servo and regulatory scenarios remains
Alexandre Marques de Almeida   +2 more
doaj   +1 more source

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