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21,634 Results Found

  • Article
  • Open Access
2 Citations
3,702 Views
26 Pages

Linear mixed-effects models are widely used in applications to analyze clustered, hierarchical, and longitudinal data. Model selection in linear mixed models is more challenging than that of linear models as the parameter vector in a linear mixed mod...

  • Article
  • Open Access
1 Citations
2,331 Views
14 Pages

Linear Mixed Model for Genotype Selection of Sorghum Yield

  • Mulugeta Tesfa,
  • Temesgen Zewotir,
  • Solomon Assefa Derese,
  • Denekew Bitew Belay and
  • Hussein Shimelis

21 February 2023

Data analysis using the General linear model assumes the factors to be fixed effects, and the BLUE method, which is based on their mean performance, is appropriate to select the best performing genotypes. The linear mixed model incorporates fixed and...

  • Article
  • Open Access
2,041 Views
18 Pages

1 December 2022

In recent years, the Poisson lognormal mixed model has been frequently used in modeling count data because it can accommodate both the over-dispersion of the data and the existence of within-subject correlation. Since the likelihood function of this...

  • Article
  • Open Access
5 Citations
1,942 Views
16 Pages

10 August 2023

A new mathematical model of an aerosol fibrous filter, composed of a variety of nano- and microfibers, is developed. The combination of nano- and microfibers in a mixed-type filter provides a higher overall quality factor compared with filters with m...

  • Article
  • Open Access
1 Citations
2,240 Views
13 Pages

Genotype Selection for Grain Yield of Sorghum through Generalized Linear Mixed Model

  • Mulugeta Tesfa,
  • Temesgen Zewotir,
  • Solomon Assefa Derese,
  • Denekew Bitew Belay and
  • Mark Laing

14 March 2023

The classical model only provides a correct analysis if all the effects are fixed. For experiments that include fixed and random effects, the general linear mixed model is appropriate for handling the non-normal distributed response variables. The ai...

  • Article
  • Open Access
291 Views
13 Pages

20 February 2026

In applying a hierarchical mixed model to genome-wide association analysis (GWAS) of longitudinal data, dimensionality reduction through modeling repeated measurements improves both computational efficiency and statistical power. Legendre polynomials...

  • Article
  • Open Access
31 Citations
4,116 Views
16 Pages

A Balancing Method of Mixed-model Disassembly Line in Random Working Environment

  • Xuhui Xia,
  • Wei Liu,
  • Zelin Zhang,
  • Lei Wang,
  • Jianhua Cao and
  • Xiang Liu

17 April 2019

Disassembly is a necessary link in reverse supply chain and plays a significant role in green manufacturing and sustainable development. However, the mixed-model disassembly of multiple types of retired mechanical products is hard to be implemented b...

  • Article
  • Open Access
3 Citations
4,414 Views
29 Pages

31 May 2018

Mixed models are useful tools for analyzing clustered and longitudinal data. These models assume that random effects are normally distributed. However, this may be unrealistic or restrictive when representing information of the data. Several papers h...

  • Article
  • Open Access
4 Citations
2,491 Views
15 Pages

19 June 2022

The calculation of tooth wear under mixed elastohydrodynamic lubrication is very complex and requires consideration of many conditions such as load distribution in the tooth meshing zone, micro-convex elastoplastic deformation and tooth surface tempe...

  • Article
  • Open Access
3 Citations
2,490 Views
21 Pages

In this paper, we study the traveling wave solution of an epidemic model with mixed diffusion. First, we give two definitions of the minimum wave speeds and prove that they are equivalent. Second, the existence, decaying behavior, and uniqueness of t...

  • Article
  • Open Access
3 Citations
1,244 Views
20 Pages

17 June 2025

The connected and automated vehicles (CAV) smoothing mixed traffic flow has gained attention, and a thorough assessment of these control algorithms is necessary. Our previous research proposed the time-varying model predictive control (TV-MPC) strate...

  • Article
  • Open Access
3 Citations
2,150 Views
14 Pages

Analysis of the Carreau Model Mixed Mechanism with a Stir Shaft in Color FDM Printing

  • Xinji Gan,
  • Zhang Wang,
  • Zhongyuan Xing,
  • Perk Lin Chong and
  • Mohammad Hossein Yazdi

11 February 2023

Conventionally, fused deposition modeling (FDM) 3D printing allows for multiple color printing, but it is limited to only various monochromatic colors. Consequently, the effect of progressive color transition cannot be reflected. To produce the progr...

  • Feature Paper
  • Article
  • Open Access
2 Citations
1,673 Views
19 Pages

14 October 2023

Mixed and multi-model assembly line sequencing problems are more practical than single-product models. The methods and selection criteria used must keep up with the constantly increasing level of variability, synchronize flows between various—o...

  • Article
  • Open Access
445 Views
18 Pages

30 September 2025

This paper investigates nonparametric estimations of a density function within a mixed density model. A linear wavelet density estimator and an adaptive nonlinear wavelet estimator are proposed using wavelet method and hard thresholding algorithm. Un...

  • Article
  • Open Access
10 Citations
3,533 Views
13 Pages

Mixed Generalized Multiscale Finite Element Method for Darcy-Forchheimer Model

  • Denis Spiridonov,
  • Jian Huang,
  • Maria Vasilyeva,
  • Yunqing Huang and
  • Eric T. Chung

10 December 2019

In this paper, the solution of the Darcy-Forchheimer model in high contrast heterogeneous media is studied. This problem is solved by a mixed finite element method (MFEM) on a fine grid (the reference solution), where the pressure is approximated by...

  • Article
  • Open Access
2 Citations
4,217 Views
12 Pages

26 September 2016

The mixed power flow analysis method decreases the computational complexity and achieves a high level of simulation accuracy. The mixed approach combines the ac with the dc power flow models, depending on the area of interest. The accurate ac model i...

  • Article
  • Open Access
729 Views
17 Pages

Numerical Investigation on the Dynamic Sealing Performance of Stepseal Based on a Mixed-Lubrication Model

  • Ran Li,
  • Tianze Cao,
  • Wenshu Wei,
  • Xiangyu Geng,
  • Rongming Chen,
  • Jianfeng Li,
  • Yuehua Lai,
  • Hao Liu,
  • Fengcai Liu and
  • Wenbo Li

30 May 2025

The dynamic sealing performance of Stepseal® is vital to the reliability and remaining life of Stepseal. In this study, experimental and numerical investigations were performed for characterizing the dynamic sealing behavior of a typical Stepseal...

  • Article
  • Open Access
8 Citations
2,215 Views
13 Pages

31 October 2024

Objective: The purpose of this article was to use the Random Forest method and nonlinear mixed-effects method to develop a model for determining tree height–diameter at breast height (DBH) for a natural coniferous and broad-leaved mixed forest...

  • Article
  • Open Access
2 Citations
5,957 Views
21 Pages

A Low-Rank Group-Sparse Model for Eliminating Mixed Errors in Data for SRTM1

  • Chenyu Ge,
  • Mengmeng Wang,
  • Hongming Zhang,
  • Huan Chen,
  • Hongguang Sun,
  • Yi Chang and
  • Qinke Yang

1 April 2021

The elimination of mixed errors is a key preprocessing technology for the area of digital elevation model data analysis, which is important for further applying data. We associated group sparsity with the low-rank uniqueness of local transformations...

  • Article
  • Open Access
843 Views
17 Pages

Numerical Approximation of the In Situ Combustion Model Using the Nonlinear Mixed Complementarity Method

  • Julio César Agustin Sangay,
  • Alexis Rodriguez Carranza,
  • Juan Carlos Ponte Bejarano,
  • José Luis Ponte Bejarano,
  • Eddy Cristiam Miranda Ramos,
  • Obidio Rubio and
  • Franco Rubio-López

3 April 2025

In this work, we study a numerical method to approximate the exact solution of a simple in situ combustion model. To achieve this, we use the mixed nonlinear complementarity method (MNCP), a variation of the Newton method for solving nonlinear system...

  • Article
  • Open Access
2 Citations
1,608 Views
19 Pages

6 March 2025

In this paper, we study numerical algorithms based on Physics-Informed Neural Networks (PINNs) for solving a mixed Stokes/Darcy model that describes a fluid flow coupled with a porous media flow. A Hard Constrained Parallel PINN (HC-PPINN) is propose...

  • Article
  • Open Access
1 Citations
2,249 Views
15 Pages

Developing the Additive Systems of Stand Basal Area Model for Broad-Leaved Mixed Forests

  • Xijuan Zeng,
  • Dongzhi Wang,
  • Dongyan Zhang,
  • Wei Lu,
  • Yongning Li and
  • Qiang Liu

25 June 2024

Stand basal area (SBA) is an important variable in the prediction of forest growth and harvest yield. However, achieving the additivity of SBA models for multiple tree species in the complex structure of broad-leaved mixed forests is an urgent scient...

  • Article
  • Open Access
3,136 Views
15 Pages

Biases in the Maximum Simulated Likelihood Estimation of the Mixed Logit Model

  • Maksat Jumamyradov,
  • Murat Munkin,
  • William H. Greene and
  • Benjamin M. Craig

In a recent study, it was demonstrated that the maximum simulated likelihood (MSL) estimator produces significant biases when applied to the bivariate normal and bivariate Poisson-lognormal models. The study’s conclusion suggests that similar b...

  • Article
  • Open Access
9 Citations
2,952 Views
20 Pages

10 August 2022

Looking ahead to the future-stage autonomous transportation system (ATS), personal mobility service (PMS) aims to provide the recommended travel options based on both microscopic individual travel demand and the macroscopic supply system objectives....

  • Article
  • Open Access
12 Citations
4,228 Views
25 Pages

An Improved Cohesive Zone Model for Interface Mixed-Mode Fractures of Railway Slab Tracks

  • Yanglong Zhong,
  • Liang Gao,
  • Xiaopei Cai,
  • Bolun An,
  • Zhihan Zhang,
  • Janet Lin and
  • Ying Qin

5 January 2021

The interface crack of a slab track is a fracture of mixed-mode that experiences a complex loading–unloading–reloading process. A reasonable simulation of the interaction between the layers of slab tracks is the key to studying the interf...

  • Article
  • Open Access
2 Citations
1,834 Views
13 Pages

21 September 2023

Diagnostic classification models (DCMs) are statistical models with discrete latent variables (so-called skills) to analyze multiple binary variables (i.e., items). The one-parameter logistic diagnostic classification model (1PLDCM) is a DCM with one...

  • Article
  • Open Access
4 Citations
1,882 Views
10 Pages

7 July 2022

As global warming accelerates due to greenhouse gas emissions, more efforts are required to reduce greenhouse gas emissions. One of the methods used to save building energy is the efficient management of building mechanical systems. The economizer co...

  • Article
  • Open Access
1,412 Views
19 Pages

2 August 2023

In this paper, we consider stochastic mixed vector variational inequality problems. Firstly, we present an equivalent form for the stochastic mixed vector variational inequality problems. Secondly, we present a deterministic bi-criteria model for giv...

  • Article
  • Open Access
14 Citations
4,732 Views
19 Pages

1 February 2021

Assessing transport CO2 emissions is important in the development of low-carbon strategies, but studies based on mixed land use are rare. This study assessed CO2 emissions from passenger transport in traffic analysis zones (TAZs) at the community lev...

  • Feature Paper
  • Article
  • Open Access
28 Citations
4,600 Views
17 Pages

Prediction of Shoreline Evolution. Reliability of a General Model for the Mixed Beach Case

  • Giuseppe R. Tomasicchio,
  • Antonio Francone,
  • David J. Simmonds,
  • Felice D’Alessandro and
  • Ferdinando Frega

In the present paper, after a sensitivity analysis, the calibration and verification of a novel morphodynamic model have been conducted based on a high-quality field experiment data base. The morphodynamic model includes a general formula to predict...

  • Article
  • Open Access
488 Views
26 Pages

31 January 2026

Mixed-phase clouds, in which liquid droplets and ice crystals coexist at temperatures between 38 °C and 0 °C, play a critical role in Earth’s radiation budget. Here, we assess the ability of climate and storm-resolving...

  • Article
  • Open Access
2 Citations
2,063 Views
21 Pages

17 May 2022

Building upon recent works devoted to the development of a stress-based layerwise model for multilayered plates, we explore an alternative finite-element discretization to the conventional displacement-based finite-element method. We rely on a mixed...

  • Article
  • Open Access
2 Citations
1,482 Views
24 Pages

20 December 2024

The evaluation of site quality for mixed forests is a comprehensive approach to analyzing forest site conditions and tree species growth performance. Accurate site quality assessment is crucial for understanding and enhancing the ecological functions...

  • Article
  • Open Access
19 Citations
6,174 Views
14 Pages

Hybrid Numerical Scheme of Preissmann Slot Model for Transient Mixed Flows

  • Hyunuk An,
  • Seungsoo Lee,
  • Seong Jin Noh,
  • Yeonsu Kim and
  • Jaekyoung Noh

6 July 2018

The Preissmann slot model is one of the most widely used models to conceptualize both free-surface and pressurized flows in urban drainage systems. Despite its simplicity and wide range of applications, numerical solutions of the Preissmann slot mode...

  • Article
  • Open Access
3 Citations
2,156 Views
16 Pages

8 October 2023

With the increase in product varieties, the combination of supermarkets and tow trains is being adopted by more automobile manufacturers for part feeding, especially in mixed-flow assembly lines. This paper focuses on the routing, scheduling, and loa...

  • Article
  • Open Access
24 Citations
3,668 Views
22 Pages

A Mixed-Integer Nonlinear Programming Model for Optimal Reconfiguration of DC Distribution Feeders

  • O. D. Montoya,
  • W. Gil-González,
  • J. C. Hernández,
  • D. A. Giral-Ramírez and
  • A. Medina-Quesada

27 August 2020

This paper deals with the optimal reconfiguration problem of DC distribution networks by proposing a new mixed-integer nonlinear programming (MINLP) formulation. This MINLP model focuses on minimising the power losses in the distribution lines by ref...

  • Article
  • Open Access
3 Citations
2,028 Views
14 Pages

30 September 2023

As an important indicator that can reflect a country’s macroeconomic situation and future trend, experts and scholars have long focused on analyses and predictions of gross domestic product (GDP). Combining principal component analysis (PCA), t...

  • Article
  • Open Access
55 Citations
10,834 Views
26 Pages

In an effort to reduce the experimental tests required to characterize the mixed-gas solubility and solubility-selectivity of materials for membrane separation processes, there is a need for reliable models which involve a minimum number of adjustabl...

  • Article
  • Open Access
5 Citations
3,145 Views
17 Pages

The Double Lanes Cell Transmission Model of Mixed Traffic Flow in Urban Intelligent Network

  • Wenjing Tian,
  • Jien Ma,
  • Lin Qiu,
  • Xiang Wang,
  • Zhenzhi Lin,
  • Chao Luo,
  • Yao Li and
  • Youtong Fang

29 March 2023

The connected and autonomous vehicle (CAV) is promised to ease congestion in the future with the rapid development of related technologies in recent years. To explore the characteristics of mixed-traffic flow and the dynamic transmission mechanism, t...

  • Article
  • Open Access
4 Citations
4,631 Views
17 Pages

A Generalized Linear Mixed Model Approach to Assess Emerald Ash Borer Diffusion

  • Yuan Zhong,
  • Baoxin Hu,
  • G. Brent Hall,
  • Farah Hoque,
  • Wei Xu and
  • Xin Gao

The Asian Emerald Ash Borer beetle (EAB, Agrilus planipennis Fairmaire) can cause damage to all species of Ash trees (Fraxinus), and rampant, unchecked infestations of this insect can cause significant damage to forests. It is thus critical to assess...

  • Article
  • Open Access
4 Citations
2,902 Views
19 Pages

Development of Pipeline Transient Mixed Flow Model with Smoothed Particle Hydrodynamics Based on Preissmann Slot Method

  • Yixin Yang,
  • Hexiang Yan,
  • Shixun Li,
  • Wenke Song,
  • Fei Li,
  • Huanfeng Duan,
  • Kunlun Xin and
  • Tao Tao

12 April 2024

The accurate modeling and understanding of complex transient mixed pipe flows is crucial for the optimal design and safe and efficient operation in pipeline systems such as urban drainage systems. Currently, the predominant approach for modeling free...

  • Article
  • Open Access
7 Citations
3,897 Views
20 Pages

Theoretical life prediction of tribo-pairs such as seals, bearings and gears with the failure form of wear under mixed lubrication depends on quantitative analysis of wear. Correspondingly, the wear life test depends on an accelerated wear test metho...

  • Article
  • Open Access
32 Citations
5,581 Views
18 Pages

12 May 2022

Mixed traffic composed of human-driven vehicles (HDVs) and CAVs will exist for an extended period before connected and autonomous vehicles (CAVs) are fully employed on the road. There is a consensus that dense fog can cause serious traffic accidents...

  • Article
  • Open Access
1 Citations
2,520 Views
19 Pages

Clustering Mixed-Type Data via Dirichlet Process Mixture Model with Cluster-Specific Covariance Matrices

  • Nurul Afiqah Burhanuddin,
  • Kamarulzaman Ibrahim,
  • Hani Syahida Zulkafli and
  • Norwati Mustapha

8 June 2024

Many studies have shown successful applications of the Dirichlet process mixture model (DPMM) for clustering continuous data. Beyond continuous data, in practice, one can expect to see different data types, including ordinal and nominal data. Existin...

  • Article
  • Open Access
21 Citations
4,247 Views
20 Pages

Gas Permeation Model of Mixed-Matrix Membranes with Embedded Impermeable Cuboid Nanoparticles

  • Haoyu Wu,
  • Maryam Zamanian,
  • Boguslaw Kruczek and
  • Jules Thibault

15 December 2020

In the packaging industry, the barrier property of packaging materials is of paramount importance. The enhancement of barrier properties of materials can be achieved by adding impermeable nanoparticles into thin polymeric films, known as mixed-matrix...

  • Article
  • Open Access
4 Citations
2,223 Views
21 Pages

Inference and Local Influence Assessment in a Multifactor Skew-Normal Linear Mixed Model

  • Zeinolabedin Najafi,
  • Karim Zare,
  • Mohammad Reza Mahmoudi,
  • Soheil Shokri and
  • Amir Mosavi

8 August 2022

This work considers a multifactor linear mixed model under heteroscedasticity in random-effect factors and the skew-normal errors for modeling the correlated datasets. We implement an expectation–maximization (EM) algorithm to achieve the maxim...

  • Review
  • Open Access
5 Citations
3,160 Views
23 Pages

Theoretical Model Development and Mixed Lubrication Analyses of Rolling Piston Type Rotary Compressors: A Review

  • Chengwei Wen,
  • Pengpeng Bai,
  • Hang Zhang,
  • Shuaijun Zhang,
  • Xianghui Meng,
  • Yonggang Meng and
  • Yu Tian

Owing to the requirements for high performance and long life, the friction and wear problems of rolling piston type rotary compressors have drawn much attention. Various theoretical models have been developed and improved to reveal the inner state of...

  • Article
  • Open Access
6 Citations
3,877 Views
23 Pages

23 November 2022

Data breach incidents result in severe financial loss and reputational damage, which raises the importance of using insurance to manage and mitigate cyber related risks. We analyze data breach chronology collected by Privacy Rights Clearinghouse (PRC...

  • Article
  • Open Access
1,045 Views
12 Pages

A Proactive Collision Avoidance Model for Connected and Autonomous Vehicles in Mixed Traffic Flow

  • Guojing Hu,
  • Kun Li,
  • Weike Lu,
  • Ouchan Chen,
  • Chuan Sun and
  • Yuanqi Zhao

Collision avoidance between vehicles is a great challenge, especially in the context of mixed driving of connected and autonomous vehicles (CAVs) and human-driven vehicles (HVs). Advances in automation and connectivity technologies provide opportunit...

  • Article
  • Open Access
715 Views
25 Pages

3 December 2025

In the context of the rapid development of the new energy vehicle industry, how to achieve the mixed production of fuel vehicles and electric vehicles has become an important issue for the transformation and flexible manufacturing of automotive produ...

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