Modeling of strain and filtration properties of a semi-finished leather product

Amanov, Auezhan; Хуррамов, Ш.Р.; Bahadirov, Gayrat; Abdukarimov, A; Amanov, Tileubay

doi:10.1186/s42825-021-00056-1

Cited by 33 publications

(25 citation statements)

References 9 publications

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“…To lead to the main result of the proposed article, attention is focused on an exceptional methodological approach [12][13][14][15][16][17][18][19][20] based on the analysis of derivatives of input and output signals that are available for measurement. This method represents a unique and innovative way that provides compelling evidence of the effectiveness and feasibility of our new control algorithm.…”

Section: Resultsmentioning

confidence: 99%

Algorithms for adaptive control with limited disturbance compensation

Botirov,

Latipov,

Baqoyev

et al. 2024

E3S Web of Conf.

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This paper proposes an adaptive control scheme for systems affected by parametric uncertainty and limited external disturbances, without requiring measurements of the controlled variable's derivatives. The control approach provides compensation for these disturbances, addressing control problems with a reference model. Adaptive control is a technique where a system's parameters are adjusted based on external conditions or internal changes. In the context of constrained disturbance compensation, control algorithms must account for limitations on available resources or system capacity to counteract disturbances. Such algorithms can be beneficial in situations where the system has limited resources or where disturbances cannot be fully eliminated. The proposed adaptive control scheme aims to effectively manage systems subject to parametric uncertainty and bounded external disturbances, without the need for derivative measurements of the controlled variable. The control approach compensates for these disturbances, making it suitable for applications where complete disturbance rejection is not feasible due to resource or capacity constraints.

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Section: Resultsmentioning

confidence: 99%

Algorithms for adaptive control with limited disturbance compensation

Botirov,

Latipov,

Baqoyev

et al. 2024

E3S Web of Conf.

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“…According to studies carried out in [34,38,39], the deformation properties of skin are described by power-law dependences…”

Section: Resultsmentioning

confidence: 99%

Study on modeling roller squeezing semi-finished leather products

Khurramov,

Rasulev,

Saliyev

2024

E3S Web Conf.

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This study is devoted to the analysis of moisture content in a two-roll module of a machine for squeezing semi-finished leather products after chrome tanning. An analytical relationship was obtained that describes the patterns of variation in moisture content during the roller pressing of semi-finished leather products; inequalities were derived for estimating the residual moisture content of semi-finished leather products. It was revealed that with a decrease in the thickness and initial moisture content of the semi-finished leather product, its moisture content decreases. It was stated that with an increase in the initial moisture content of the semi-finished leather product, its residual moisture content increases and asymptotically approaches a certain value.

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“…The properties of leather/collagen, such as thermal stability and physical properties, are closely correlated with their water content [2,3]. Schroepfer investigated the thermal stability of untanned and tanned bovine collagen with different hydration degrees by using differential scanning calorimetry (DSC) and confirmed that crosslinking degrees and drying increased the denaturation temperature of bovine hide collagen [4].…”

Section: Introductionmentioning

confidence: 97%

An exploration of enhancing thermal stability of leather by hydrophilicity regulation: effect of hydrophilicity of phenolic syntan

Sun

Zeng

et al. 2022

J Leather Sci Eng

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Effect of retanning on the thermal stability of leather is eliciting increasing attention. However, the relationship between the hydrophilicity of retanning agents and the heat resistance of leather and the corresponding mechanism remain unclear. Herein, phenolic formaldehyde syntans (PFSs) were selected as models to explore the effect of the hydrophilicity of retanning agents on the thermal stability of retanned leather. The thermal stability of leather was closely correlated to the hydrophilic group content (sulfonation degree) of PFSs. As the sulfonation degree increased, the water absorption rate of PFSs and their retanned leathers decreased, whereas the thermal stability of leather increased. Molecular dynamics simulation results proved that the introduction of PFSs could reduce the binding ability of collagen molecules with water and thus decreased the water molecules around the PFS-treated collagen. These results may provide guidance for the tanners to select retanning agents reasonably to improve the thermal stability of leather. Graphical Abstract

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Modeling of strain and filtration properties of a semi-finished leather product

Cited by 33 publications

References 9 publications

Algorithms for adaptive control with limited disturbance compensation

Algorithms for adaptive control with limited disturbance compensation

Study on modeling roller squeezing semi-finished leather products

An exploration of enhancing thermal stability of leather by hydrophilicity regulation: effect of hydrophilicity of phenolic syntan

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