This study focuses on developing a finite element model for Caragana korshinskii Kom. branches and calibrating the necessary parameters. Using in full bloom as subject, we established with ABAQUS analyzed relationship between shear force displacement. The Johnson–Cook was employed to create calibrate its Plackett–Burman climbing tests were conducted identify key parameters influencing mechanical of branches, specifically yield stress strain. included strengthening index fracture Through...

In order to enhance the accuracy of discrete element numerical simulations in processing small-seed particles, it is essential calibrate parameters seeds within software. This study employs a series physical tests obtain and contact red clover seeds. A model established. Plackett–Burman Design, steepest ascent, Central Composite Design experiments are sequentially conducted. The simulation deviation resting angle employed as evaluation criterion for parameter optimization. results indicate...

Caragana Korshinskii Kom. branch (CKB) is an important woody resource. However, due to its unique structural composition, CKB exhibits high toughness and hardness, leading excessive cutting energy consumption caused by lignin content during the processing fragmentation process. This study investigates fracture mechanisms of from a multi-scale perspective systematically analyzes relationships between parameters performance devices. A series experiments were conducted using custom-designed...

Sepsis is a serious threat to human life. Early prediction of high-risk populations for sepsis necessary especially in elderly patients. Artificial intelligence shows benefits early warning. The aim the study was construct an machine warning model patients and evaluate its performance. We collected from General Hospital Ningxia Medical University emergency department intensive care unit 01 January 2021 August 2023. clinical data divided into training set test set. A total 2976 12 features...

The interaction between Caragana korshinskii Kom. (CKB) branches and crushing machinery is complex, requiring a detailed mechanical model to effectively describe the fracture characteristics of CKB during crushing. This study aims develop such using discrete element method simulate elastoplastic behavior CKB. A for was established based on its characteristics. incorporates stages, including elastic, elastoplastic, fully plastic phases stem parameter calibration employed, combining physical...

Paddy field leveling is an essential step before rice transplanting. During the operation of a paddy grader, common issue wrapping straw around blades, resulting in low burial rate. This study focused on analyzing operating parameters disc spring–tooth-combined grader. A soil–straw mechanism simulation model was created using EDEM 2021 software to simulate status. Firstly, single-factor test carried out, with working speed, depth cutter roller, and rotation speed roller as factors...

Caragana korshinskii Kom. branch (CKB), a vital biomass source in northwest China, has not been thoroughly studied terms of its bending fracture mechanics. This research aims to establish nonlinear constitutive model that clarifies the behavior CKB when subjected loads. The process was characterized through three-point test, revealing stages elastic deformation, elastic-plastic transition, and plastic fracture. A power-enhanced combined with continuous damage mechanics theory used develop an...

This study aimed to optimize the pelleting and coating process for red clover seeds, addressing issue of low success rates. Through theoretical analysis experimental research, pan fill rate, powder supply quantity, time were identified as key factors influencing rate. Single-factor experiments conducted investigate effects these parameters on quality seed coating. Based results, orthogonal trials carried out, response surface was employed reveal influence patterns interactions each factor....

Accurate real-time classification of fluorescently labelled maize kernels is important for the industrial application its advanced breeding techniques. Therefore, it necessary to develop a device and recognition algorithm kernels. In this study, machine vision (MV) system capable identifying fluorescent in real time was designed using protein excitation light source filter achieve optimal detection. A high-precision method based on YOLOv5s convolutional neural network (CNN) developed. The...

This study is based on the discrete element method to calibrate physical parameters of astragalus membranaceus. Plackett Burman test, steepest climb and Box Behnken test were used screen for significant influencing factors optimal levels, a quadratic regression model was obtained relative error between simulated experiment resting angles. The results showed that angles repose only 0.392%, which can provide theoretical basis simulation working process membranaceus picking machine.

The calibration of the powder simulation parameters could improve accuracy pelletizing and coating process. In this paper, we take coated (after referred to as powder) research object, based on particle amplification theory, combined with physical tests calibrate contact seeds seeds), conduct angle repose powder, carry out Plackett-Burman test, steepest climb Box-Behnken test in turn, establish quadratic regression equation obtain best combination parameters. difference between parameter...

Calibrating the contact parameters when carrying out seed pelletizing coating test could improve simulation tests' accuracy. In this paper, alfalfa seeds and coated powders (hereafter referred to as powders) are used main object of study calibrate their parameters, using Hertz-Mindlin no-slip model JKR between seeds, steel plates (coating pot materials), powder materials, plates, based on EDEM angle repose response value perform Plackett-Burman test, steepest ascent experiment, Box-Behnken...

In order to solve the problem of low qualification rate pilling and coating small-grain forage seeds, a vibration force field is introduced traditional vertical disk machine promote mixing materials improve pilling. Using typical seed red clover as an example, we used after adding powder particles pot for theoretical analysis situation, using discrete element software EDEM construct simulation model with coefficient discretization evaluation index. We studied effects rotational speed pot,...

Calibrating the contact parameters when carrying out seed pelletizing coating test could improve simulation tests' accuracy. In this paper, alfalfa seeds and coated powders (hereafter referred to as powders) are used main object of study calibrate their parameters, using Hertz-Mindlin no-slip model JKR between seeds, steel plates (coating pot materials), powder materials, plates, based on EDEM angle repose response value perform Plackett-Burman test, steepest ascent experiment, Box-Behnken...

The physical and mechanical properties of the materials in swirling fluidized-bed seed pelleting unit affect mixing degree coating process, which is great significance to research on coating. problem discrete particle model parameters affecting CFD-DEM simulation results addressed. In this paper, red clover seeds (referred as seeds) pelletized powder powder) were used objects, JKR. was selected calibrate contact between based amplification theory. With rest angle response value, a...

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1. Al-musawi, H., Huber, C., Grabner, M., Ungerer, B., Krenke, T., Matz, P., et al., 2023. Compressive strength of beech and birch at different moisture contents temperatures. J. Materials Sci. 58(35), 13994-14008. https://doi.org/10.1007/s10853.... CrossRef Google Scholar

<p>This paper proposes a novel hybrid PRP-HS-LS-type conjugate gradient algorithm for solving constrained nonlinear systems of equations. The proposed presents several significant advancements and key features: (i) the parameter is constructed by utilizing technique; (ii) search direction, designed with parameter, possesses sufficient descent trust region properties without need line mechanism; (iii) global convergence rigorously established under general assumptions, notably...