<abstract xmlns="http://www.w3.org/1999/xhtml">

A physical model of a tall space livestock house was established using Prosim software and the relevant boundary conditions were set under the replacement of ventilation conditions. The exhaust air volume calculated by different ventilation times is simulated to the effort of the indoor pollutant concentration distribution and the measuring points are evenly arranged in the space. The study found that the replacement ventilation effect is optimal and the indoor pollutant concentration is the lowest when the indoor air supply and exhaust air volume are increased to 45 times/h.
</abstract>

College of Civil Engineering & Architecture

College of Mechanical and Electrical Engineering

Influence of displacement ventilation on the distribution of pollutant concentrations in livestock housing

RETRACTION NOTE

<abstract xmlns="http://www.w3.org/1999/xhtml">

The trajectory tracking of badminton players’ arm shots can be used effectively to enhance the player’s shot quality. To track the image trajectory of the batting arm, it is necessary to calculate the body posture ratio and tightness of the target area of the batting arm, to filter the background interference of the image segment of the batting and to complete the efficient tracking of the trajectory of the arm batting image. The traditional method combines the adaptive threshold segmentation method to extract the hitting arm target from the background, but ignores filtering out the background interference of the hitting image fragment. This paper proposes a trajectory tracking method based on the morphological operator of the batter image of the arm stroke. The method consists of (1) differentially calculating the image sequence of the hitting arm during two consecutive shots, (2) estimating the Gaussian model parameters of the differential image of the hitting arm during the hitting process, (3) extracting the outline of the moving target of the hitting arm during the hitting process and then calculating the body posture ratio of the hitting target area and compactness, (4) filtering the background interference of the shot image fragment, (6) constructing a global matching approximation function of the moving target and (7) finally determining the motion trajectory of the badminton arm of the batter. Simulation results show that the proposed method can effectively track the target of the hitting arm during the hitting process and generate a continuous trajectory of the hitting arm.
</abstract>

Faculty of Computing and Information Technology

Badminton players’ trajectory under numerical calculation method

<abstract xmlns="http://www.w3.org/1999/xhtml">

The paper establishes a related differential equation model about changes in financial interest rates. It uses information related to liquidity to feedback the law and stability of differential equations in interest rate changes. The article applies stochastic processes and partial differential equations to complex financial networks to confirm node yields in financial market networks. It confirms the existence of interest rate stickiness in Chinese financial markets. The advantage of this interest rate model is that when the external economic environment changes, the state of interest rates will also change accordingly.
</abstract>

Department of Key Construction and Development Planning

Law of interest rate changes in financial markets based on the differential equation model of liquidity

<abstract xmlns="http://www.w3.org/1999/xhtml">

The economic benefit of enterprises is an effective index to measure the economic activities, which forms the basis and starting point. Therefore, in this paper, the traditional analysis methods of enterprise in terms of economic benefits are compared and based on its evaluation principles, the advantages, theory and realisation process of the kernel function in enterprise economic benefits analysis are analysed. Then, different kernel functions are selected to analyse the total output value, product sales rate, sales revenue, total profit and total profits after taxes of five enterprises, and their economic benefits are evaluated by the cumulative contribution rate of principal components. Finally, the mixed kernel function based on the combination of polynomial kernel function and Gaussian kernel function is used to optimise the analysis effect, which is meant to help enterprise leaders make more scientific decisions and lay a foundation for the sound development of enterprises.
</abstract>

Application of hybrid kernel function in economic benefit analysis and evaluation of enterprises

<abstract xmlns="http://www.w3.org/1999/xhtml">

The thrust of basalt fibre (BFRP) tendons will result in narrower transverse crack spacing, decreased load transfer capacity of transverse cracks and voids at the bottom of the slab, which will lead to thrust failure. The thesis uses the finite element analysis method to analyse the material characteristics of BFRP tendons. At the same time, the article determines the critical load position corresponding to the tensile stress of concrete and BFRP tendons, and analyses the influence of voids, crack spacing and other factors on the load stress of concrete and BFRP tendons. The study results found that continuously reinforced concrete and asphalt overlay composite design can reduce cracks.
</abstract>

Basalt fibre continuous reinforcement composite pavement reinforcement design based on finite element model

Retraction

Retraction: Wei, Wei and Lu, Liu. “The influence of X fuzzy mathematics method in basketball tactics scoring” Applied Mathematics and Nonlinear Sciences, vol.7, no.1, 2022, pp.677-684

Retraction: Retraction of: Mundewadi, R. A. and S, Kumbinarasaiah. “Numerical Solution of Abel's Integral Equations using Hermite Wavelet” Applied Mathematics and Nonlinear Sciences, vol.4, no.2, 2019, pp.395-406

Retraction of: Pan, Liurong, Alshalabi, Riyad, Li, Pingfen, Naminse, Eric Yaw and Tan, Fuqiang. “Analysis of digital humanistic knowledge production based on natural language processing” Applied Mathematics and Nonlinear Sciences, vol.0, no.0, 2023, pp.-. https://doi.org/10.2478/amns.2022.1.00029

Erratum Statement

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Applied Mathematics and Nonlinear Sciences

AHEAD OF PRINT

Influence of displacement ventilation on the distribution of pollutant concentrations in livestock housing

RETRACTION NOTE

Badminton players’ trajectory under numerical calculation method

Law of interest rate changes in financial markets based on the differential equation model of liquidity

Application of hybrid kernel function in economic benefit analysis and evaluation of enterprises

Basalt fibre continuous reinforcement composite pavement reinforcement design based on finite element model

Retraction

Retraction: Wei, Wei and Lu, Liu. “The influence of X fuzzy mathematics method in basketball tactics scoring” Applied Mathematics and Nonlinear Sciences, vol.7, no.1, 2022, pp.677-684

Retraction: Retraction of: Mundewadi, R. A. and S, Kumbinarasaiah. “Numerical Solution of Abel's Integral Equations using Hermite Wavelet” Applied Mathematics and Nonlinear Sciences, vol.4, no.2, 2019, pp.395-406

Retraction

Erratum Statement

RETRACTION NOTE

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