Plant Tissue Modelling Using Power-Law Filters

Gadallah, Samar I.; Ghoneim, Mohamed S.; Elwakil, Ahmed S.; Said, Lobna A.; Madian, Ahmed H.; Radwan, Ahmed G.

doi:10.3390/s22155659

Cited by 7 publications

(4 citation statements)

References 36 publications

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“…The optimal EEC parameters for the considered circuit are argmin κ F(κ). The Levenberg-Marquart algorithm ( Marquardt, 1963 ) is commonly used to solve this optimization problem, although many alternative algorithms have been proposed for bioimpedance analysis ( Yousri et al., 2019 ; Gadallah et al., 2022 ; Ghoneim et al., 2022 ). Most plant EIS studies use the above method for circuit parameter identification, typically through commercial or freely available software, such as LEVM/LEVMW ( MacDonald, 2013 ), EIS Spectrum Analyzer ( Bondarenko and Ragoisha, 2005 ), LabView ( Kodosky, 2020 ), or ZView ( Johnson, 2000 ).…”

Section: Plant Equivalent Circuit Modelingmentioning

confidence: 99%

Plant impedance spectroscopy: a review of modeling approaches and applications

Van Haeverbeke,

De Baets,

Stock

2023

Front. Plant Sci.

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Electrochemical impedance spectroscopy has emerged over the past decade as an efficient, non-destructive method to investigate various (eco-)physiological and morphological properties of plants. This work reviews the state-of-the-art of impedance spectra modeling for plant applications. In addition to covering the traditional, widely-used representations of electrochemical impedance spectra, we also consider the more recent machine-learning-based approaches.

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Section: Plant Equivalent Circuit Modelingmentioning

confidence: 99%

Plant impedance spectroscopy: a review of modeling approaches and applications

Van Haeverbeke,

De Baets,

Stock

2023

Front. Plant Sci.

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“…The power-law filter is a new category of fractional-order filters that can be realized without using the fractional-order Laplacian operator, thereby eliminating the need for fractional-order elements when realizing this class of filters [16,17]. The fractional-order lead/lag compensator provides additional degrees of freedom in the tuning process in the fractional-order control area [18].…”

Section: Introductionmentioning

confidence: 99%

A Study on Fractional Power-Law Applications and Approximations

Emad,

Hassanein,

AbdelAty

et al. 2024

Electronics

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The frequency response of the fractional-order power-law filter can be approximated by different techniques, which eventually affect the expected performance. Fractional-order control systems introduce many benefits for applications like compensators to achieve robust frequency and additional degrees of freedom in the tuning process. This paper is a comparative study of five of these approximation techniques. The comparison focuses on their magnitude error, phase error, and implementation complexity. The techniques under study are the Carlson, continued fraction expansion (CFE), Padé, Charef, and MATLAB curve-fitting tool approximations. Based on this comparison, the recommended approximation techniques are the curve-fitting MATLAB tool and the continued fraction expansion (CFE). As an application, a low-pass power-law filter is realized on a field-programmable analog array (FPAA) using two techniques, namely the curve-fitting tool and the CFE. The experiment aligns with and validates the numerical results.

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“…Three main areas of EIS use can be distinguished: electrical impedance tomography in medicine [ 16 , 17 , 18 , 19 , 20 , 21 ], assessment of product quality and safety in the food industry, and the study of plant physiology in agriculture [ 22 , 23 , 24 , 25 ]. When applied to plant physiology, this method is mainly useful for characterizing quantitative cellular changes.…”

Section: Introductionmentioning

confidence: 99%

Electric Impedance Spectroscopy in Trees Condition Analysis: Theory and Experiment

Astashev

Konchekov

Колик

et al. 2022

Sensors

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Electric impedance spectroscopy is an alternative technology to existing methods that shows promising results in the agro-food industry and plant physiology research. For example, this technology makes it possible to monitor the condition of plants, even in the early stages of development, and to control the quality of finished products. However, the use of electric impedance spectroscopy is often associated with the need to organize special laboratory conditions for measurements. Our aim is to extract information about the state of health of the internal tissues of a plant’s branches from impedance measurements. Therefore, we propose a new technique using the device and model developed by us that makes it possible to monitor the condition of tree branch tissues in situ. An apple tree was chosen as the object under study, and the dependence of the impedance of the apple tree branch on the signal frequency and branch length was analyzed. The change in the impedance of an apple tree branch during drying was also analyzed. It was shown that, when a branch dries out, the conductivity of the xylem mainly decreases. The developed technique was also applied to determine the development of the vascular system of an apple tree after grafting. It was shown that the processing of the scion and rootstock sections with the help of cold atmospheric plasma and a plasma-treated solution contributes to a better formation of graft unions.

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Plant Tissue Modelling Using Power-Law Filters

Cited by 7 publications

References 36 publications

Plant impedance spectroscopy: a review of modeling approaches and applications

Plant impedance spectroscopy: a review of modeling approaches and applications

A Study on Fractional Power-Law Applications and Approximations

Electric Impedance Spectroscopy in Trees Condition Analysis: Theory and Experiment

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