Skip to Content

1,321 Results Found

  • Article
  • Open Access
4 Citations
2,906 Views
22 Pages

30 June 2021

In this paper, we derive a closed-form expression of the tail probability of the aggregate discounted claims under homogeneous, non-homogeneous and mixed Poisson risk models with constant force of interest by using a general dependence structure betw...

  • Feature Paper
  • Article
  • Open Access
6 Citations
4,179 Views
18 Pages

3 November 2022

The resource network is a non-linear threshold model where vertices exchange resource in infinite discrete time. The model is represented by a directed weighted graph. At each time step, all vertices send their resources along all output edges follow...

(This article belongs to the Special Issue Graph Theory and Applications)
  • Article
  • Open Access
9 Citations
4,972 Views
17 Pages

8 March 2018

In this work, the non-homogeneous risk model is considered. In such a model, claims and inter-arrival times are independent but possibly non-identically distributed. The easily verifiable conditions are found such that the ultimate ruin probability o...

  • Article
  • Open Access
3 Citations
1,220 Views
33 Pages

22 September 2025

Accurately predicting annual renewable power generation is critical for advancing energy structure transformation, ensuring energy security, and fostering sustainable development. In this study, a probabilistic non-homogeneous grey model (PNGM) is pr...

(This article belongs to the Special Issue The Future of Renewable Energy: 2nd Edition)
  • Article
  • Open Access
4 Citations
2,565 Views
17 Pages

7 May 2025

The importance of software has increased significantly over time, and software failures have become a critical concern. As software systems have diversified in functionality, their structure has become more complex, and the types of failures that can...

  • Article
  • Open Access
24 Citations
3,514 Views
28 Pages

Numerical Study of MHD Natural Convection inside a Cubical Cavity Loaded with Copper-Water Nanofluid by Using a Non-Homogeneous Dynamic Mathematical Model

  • Mohamed Sannad,
  • Ahmed Kadhim Hussein,
  • Awatef Abidi,
  • Raad Z. Homod and ,
  • Uddhaba Biswal,
  • Bagh Ali,
  • Lioua Kolsi and
  • Obai Younis
  • + 3 authors+ 0 author

15 June 2022

Free convective flow in a cubical cavity loaded with copper-water nanofluid was examined numerically by employing a non-homogeneous dynamic model, which is physically more realistic in representing nanofluids than homogenous ones. The cavity was intr...

(This article belongs to the Special Issue Nonlinear Partial Differential Equations in Mathematical Fluid Dynamics)
  • Article
  • Open Access
2 Citations
1,199 Views
25 Pages

28 April 2025

To accurately predict the performance of GPF trapping, this study proposes a non-homogeneous dynamic extended capture model for a gasoline particulate filter (GPF). The model consists of a non-homogeneous filter wall sub-model, a filter wall temperat...

  • Article
  • Open Access
24 Citations
6,319 Views
13 Pages

31 December 2019

Rainfall-runoff modeling is nowadays applied for water resources management, water system design, real-time forecasting, flood design and can be carried out by using different types of hydrological models. In this study, we focused on lumped conceptu...

(This article belongs to the Special Issue Modelling Hydrologic Response of Non­-homogeneous Catchments)
  • Article
  • Open Access
2 Citations
2,088 Views
31 Pages

2 August 2024

Roads are the most heavily affected aspect of urban infrastructure given the ever-increasing number of vehicles needed to provide mobility to residents, supply them with goods, and help sustain urban growth. An important indicator of degrading road i...

(This article belongs to the Topic Smart Cities: Infrastructure, Innovation, Technology, Governance and Citizenship)
  • Article
  • Open Access
7 Citations
3,409 Views
29 Pages

DG-GMsFEM for Problems in Perforated Domains with Non-Homogeneous Boundary Conditions

  • Valentin Alekseev,
  • Maria Vasilyeva,
  • Uygulaana Kalachikova and
  • Eric T. Chung

Problems in perforated media are complex and require high resolution grid construction to capture complex irregular perforation boundaries leading to the large discrete system of equations. In this paper, we develop a multiscale model reduction techn...

  • Article
  • Open Access
192 Views
20 Pages

Attitude Orientation and Distribution of Millimeter-Scale Space Debris Considering Shape Effects

  • Ziyu Zhao,
  • Runqiang Chi,
  • Diqi Hu,
  • Shengpeng Chen and ,
  • Yuyan Liu and
  • Baojun Pang
  • + 1 author+ 0 author

27 October 2026

Currently, space debris environment engineering models typically simplify millimeter-sized debris as homogeneous spheres, neglecting the influence of debris shape on orbital evolution and subsequent risk assessment. To improve these models, this pape...

(This article belongs to the Special Issue Spacecraft Dynamics, Resilient Control and Space Environment Interactions)
  • Article
  • Open Access
9 Citations
2,274 Views
20 Pages

Non-Trivial Dynamics in the FizHugh–Rinzel Model and Non-Homogeneous Oscillatory-Excitable Reaction-Diffusions Systems

  • Benjamin Ambrosio,
  • M. A. Aziz-Alaoui,
  • Argha Mondal,
  • Arnab Mondal and ,
  • Sanjeev K. Sharma and
  • Ranjit Kumar Upadhyay
  • + 1 author+ 0 author

27 June 2023

This article focuses on the qualitative analysis of complex dynamics arising in a few mathematical models in neuroscience context. We first discuss the dynamics arising in the three-dimensional FitzHugh–Rinzel (FHR) model and then illustrate th...

(This article belongs to the Section Theoretical Biology and Biomathematics)
  • Article
  • Open Access
8 Citations
5,876 Views
19 Pages

We study the Bitcoin and Ether price series under a financial perspective. Specifically, we use two econometric models to perform a two-layer analysis to study the correlation and prediction of Bitcoin and Ether price series with traditional assets....

(This article belongs to the Section Internet of Things)
  • Article
  • Open Access
469 Views
14 Pages

30 April 2026

This study investigates the impact of standby activation strategies on system reliability. The results show that a delayed activation strategy effectively improves system reliability. Additionally, to tackle the difficulty of deriving analytical solu...

(This article belongs to the Special Issue Statistical Analysis and Data Science for Complex Data, 2nd Edition)
  • Article
  • Open Access
16 Citations
5,158 Views
16 Pages

A Bayesian Model of COVID-19 Cases Based on the Gompertz Curve

  • Ángel Berihuete,
  • Marta Sánchez-Sánchez and
  • Alfonso Suárez-Llorens

25 January 2021

The COVID-19 pandemic has highlighted the need for finding mathematical models to forecast the evolution of the contagious disease and evaluate the success of particular policies in reducing infections. In this work, we perform Bayesian inference for...

(This article belongs to the Special Issue Stochastic Models with Applications)
  • Article
  • Open Access
27 Citations
7,723 Views
23 Pages

18 January 2012

Isotropic linear and nonlinear fractional derivative constitutive relations are formulated and examined in terms of many parameter generalized Kelvin models and are analytically extended to cover general anisotropic homogeneous or non-homogeneous as...

(This article belongs to the Special Issue Advances in Functionally Graded Materials)
  • Article
  • Open Access
5 Citations
1,302 Views
18 Pages

The Kelvin–Voigt–Brinkman–Forchheimer Equations with Non-Homogeneous Boundary Conditions

  • Evgenii S. Baranovskii,
  • Mikhail A. Artemov,
  • Sergey V. Ershkov and
  • Alexander V. Yudin

14 March 2025

We investigate the well-posedness of an initial boundary value problem for the Kelvin–Voigt–Brinkman–Forchheimer equations with memory and variable viscosity under a non-homogeneous Dirichlet boundary condition. A theorem about the...

(This article belongs to the Section C2: Dynamical Systems)
  • Article
  • Open Access
19 Citations
3,185 Views
18 Pages

27 April 2021

Software reliability models (SRMs) are widely used for quantitative evaluation of software reliability by estimating model parameters from failure data observed in the testing phase. In particular, non-homogeneous Poisson process (NHPP)-based SRMs ar...

(This article belongs to the Special Issue Mathematics in Software Reliability and Quality Assurance)
  • Proceeding Paper
  • Open Access
2 Citations
3,064 Views
12 Pages

With Bitcoin, Ether and more than 2000 cryptocurrencies already forming a multi-billion dollar market, a proper understanding of their statistical and financial properties still remains elusive. Traditional economic theories do not explain their char...

(This article belongs to the Proceedings of The 3rd Annual Decentralized Conference on Blockchain and Cryptocurrency)
  • Article
  • Open Access
29 Citations
4,506 Views
30 Pages

10 April 2019

The non-homogeneous Poisson process (NHPP) software has a crucial role in computer systems. Furthermore, the software is used in various environments. It was developed and tested in a controlled environment, while real-world operating environments ma...

  • Article
  • Open Access
1 Citations
2,669 Views
18 Pages

This paper focuses on the so-called proportional intensity-based software reliability models (PI-SRMs), which are extensions of the common non-homogeneous Poisson process (NHPP)-based SRMs, and describe the probabilistic behavior of software fault-de...

(This article belongs to the Special Issue 10th Anniversary of Electronics: Recent Advances in Computer Science & Engineering)
  • Article
  • Open Access
4 Citations
3,548 Views
17 Pages

On State Occupancies, First Passage Times and Duration in Non-Homogeneous Semi-Markov Chains

  • Andreas C. Georgiou,
  • Alexandra Papadopoulou,
  • Pavlos Kolias,
  • Haris Palikrousis and
  • Evanthia Farmakioti

24 July 2021

Semi-Markov processes generalize the Markov chains framework by utilizing abstract sojourn time distributions. They are widely known for offering enhanced accuracy in modeling stochastic phenomena. The aim of this paper is to provide closed analytic...

(This article belongs to the Special Issue Markov and Semi-markov Chains, Processes, Systems and Emerging Related Fields)
  • Feature Paper
  • Article
  • Open Access
1,530 Views
16 Pages

Comparison of Parametric Rate Models for Gap Times Between Recurrent Events

  • Ivo Sousa-Ferreira,
  • Ana Maria Abreu and
  • Cristina Rocha

10 June 2025

Over the past two decades, substantial efforts have been made to develop survival models for gap times between recurrent events. An emerging approach involves considering rate models derived from a non-homogeneous Poisson process, thus allowing the c...

(This article belongs to the Special Issue Advances in Statistics, Biostatistics and Medical Statistics)
  • Article
  • Open Access
12 Citations
4,661 Views
17 Pages

Non-Homogeneous Diffusion of Residential Crime in Urban China

  • Yicheng Tang,
  • Xinyan Zhu,
  • Wei Guo,
  • Xinyue Ye and ,
  • Tao Hu,
  • Yaxin Fan and
  • Faming Zhang
  • + 2 authors+ 0 author

The relationship between crime and urban environment has always been the focus of crime geography. Like diseases which can transmit and diffuse, crimes may also spread during a certain period of time and to a certain area by the near-repeat effect. T...

  • Article
  • Open Access
8 Citations
2,981 Views
20 Pages

13 August 2023

Software reliability growth models (SRGMs) based on the non-homogeneous Poisson process have played a significant role in predicting the number of remaining errors in software, enhancing software reliability. Software errors are commonly attributed t...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
292 Views
27 Pages

3 September 2026

Many software systems currently under development exhibit numerous new types of failure due to their structural complexity. This suggests the need for research on structures capable of representing convex patterns in the fault-detection rate over tim...

(This article belongs to the Special Issue Applied Statistics, Data-Driven Modeling and Intelligent System Reliability)
  • Article
  • Open Access
2 Citations
1,445 Views
14 Pages

17 May 2025

The increasing complexity and uncertainty associated with high renewable energy penetration require forecasting methods that provide more comprehensive information for risk analysis and energy management. This paper proposes a novel probabilistic for...

(This article belongs to the Section A2: Solar Energy and Photovoltaic Systems)
  • Article
  • Open Access
7 Citations
4,157 Views
18 Pages

23 December 2022

In the literature, infinite-failure software reliability models (SRMs), such as Musa-Okumoto SRM (1984), have been demonstrated to be effective in quantitatively characterizing software testing processes and assessing software reliability. This paper...

  • Article
  • Open Access
391 Views
24 Pages

Unprotected left turns at urban intersections require drivers to continually regulate their driving behavior while negotiating conflicts with opposing through traffic. Existing studies have mostly examined such maneuvers through gap-acceptance decisi...

(This article belongs to the Special Issue Advanced Intelligent Control and Optimization for Autonomous and Electric Vehicles)
  • Feature Paper
  • Article
  • Open Access
1,871 Views
29 Pages

17 November 2025

Background: Liver transplantation is the most effective curative treatment for patients with hepatocellular carcinoma. Due to the scarcity of cadaveric donor livers, several selection criteria have been established; however, these criteria are highly...

(This article belongs to the Special Issue Advances in Statistics, Biostatistics and Medical Statistics)
  • Review
  • Open Access
2 Citations
1,851 Views
20 Pages

25 April 2024

In this paper, we will review two analytical approaches to the construction of non-homogeneous Baryonic condensates in the low-energy limit of QCD in (3+1) dimensions. In both cases, the minimal coupling with the Maxwell U(1) gauge field can be taken...

(This article belongs to the Special Issue The Advances of Nonlinear Equations: Mathematical Models, Symmetry and Applications)
  • Article
  • Open Access
10 Citations
3,255 Views
18 Pages

31 May 2021

Atmospheric disturbance is a main interference for deformation monitoring by GB-InSAR. Most approaches for atmospheric correction are based on the homogenous atmospheric medium assumption that usually does not hold due to complex topography and vario...

(This article belongs to the Special Issue Advances in InSAR Imaging and Data Processing)
  • Article
  • Open Access
3 Citations
1,272 Views
27 Pages

1 July 2025

Grey models have attracted considerable attention as a time series forecasting tool in recent years. Nevertheless, the linear characteristics of the differential equations on which traditional grey models rely frequently result in inadequate predicti...

  • Article
  • Open Access
2 Citations
2,979 Views
16 Pages

Discrete Homogeneous and Non-Homogeneous Markov Chains Enhance Predictive Modelling for Dairy Cow Diseases

  • Jan Saro,
  • Jaromir Ducháček,
  • Helena Brožová,
  • Luděk Stádník and ,
  • Petra Bláhová,
  • Tereza Horáková and
  • Robert Hlavatý
  • + 2 authors+ 0 author

1 September 2024

Modelling and predicting dairy cow diseases empowers farmers with valuable information for herd health management, thereby decreasing costs and increasing profits. For this purpose, predictive models were developed based on machine learning algorithm...

(This article belongs to the Topic Animal Diseases in Agricultural Production Systems: Their Veterinary, Zoonotic, and One Health Importance, 2nd Edition)
  • Article
  • Open Access
2 Citations
1,900 Views
15 Pages

18 February 2024

Entropy measures the randomness or uncertainty of a stochastic process, and the entropy rate refers to the limit of the time average of entropy. The generalized entropy rate in the form of delayed averages can overcome the redundancy of initial infor...

  • Article
  • Open Access
1 Citations
1,132 Views
22 Pages

For the non-homogeneous fractional-order Hammerstein multiple input single output (MISO) system, a method for identifying system coefficients and fractional-order parameters in stages is proposed. The coefficients of the system include the coefficien...

  • Article
  • Open Access
3 Citations
1,118 Views
18 Pages

30 May 2024

In this paper, we focus on the existence of positive solutions for a singular tempered sub-diffusion fractional model involving a quasi-homogeneous nonlinear operator. By using the spectrum theory and computing the fixed point index, some new suffici...

(This article belongs to the Special Issue Symmetry in Geometric Theory of Analytic Functions)
  • Article
  • Open Access
1 Citations
1,165 Views
30 Pages

1 September 2025

Accurate forecasting of language service demand is essential for language industry planning and resource allocation, yet it remains challenging due to small sample sizes, noisy data, and nonlinear dynamics in industry-level time series. To enhance fo...

(This article belongs to the Special Issue Data-Driven Modeling and Predictive Analysis for Business, Social, Economic, and Engineering Applications)
  • Article
  • Open Access
12 Citations
3,998 Views
19 Pages

In-Plane Compressive Responses of Non-Homogenous Re-Entrant Honeycombs Fabricated by Fused Deposition Modelling

  • Ahmad Baroutaji,
  • Hamid Nikkhah,
  • Arun Arjunan,
  • Sadjad Pirmohammad and
  • John Robinson

Auxetic structures, with re-entrant (inverted hexagonal or bow tie) unit cells, have received considerable interest due to their negative Poisson’s ratio property that results in superior mechanical properties. This study proposes a simple meth...

(This article belongs to the Special Issue Advanced Additive Manufacturing Techniques: From Fundamental Research to Applications)
  • Article
  • Open Access
5 Citations
2,820 Views
20 Pages

22 June 2023

The ultimate goal of PPP-RTK is to achieve rapid ambiguity resolution, which is influenced by the prior precision of the external ionospheric information. This study proposes a method for determining the precision of ionospheric corrections for each...

  • Article
  • Open Access
40 Citations
4,627 Views
22 Pages

A Software Reliability Model with Dependent Failure and Optimal Release Time

  • Youn Su Kim,
  • Kwang Yoon Song,
  • Hoang Pham and
  • In Hong Chang

8 February 2022

In the past, because computer programs were restricted to perform only simple functions, the dependence on software was not large, resulting in relatively small losses after a failure. However, with the development of the software market, the depende...

(This article belongs to the Topic Applied Metaheuristic Computing)
  • Article
  • Open Access
2 Citations
3,804 Views
34 Pages

Thermally and Dynamically Driven Atmospheric Circulations over Heterogeneous Atmospheric Boundary Layer: Support for Safety Protocols and Environment Management at Nuclear Central Areas

  • Larissa de Freitas Ramos Jacinto,
  • Luiz Claudio Gomes Pimentel,
  • José Francisco de Oliveira Júnior,
  • Ian Cunha D’Amato Viana Dragaud and ,
  • Corbiniano Silva,
  • William Cossich Marcial de Farias,
  • Edilson Marton,
  • Luiz Paulo de Freitas Assad,
  • Jesus Salvador Perez Guerrero and
  • Luiz Landau
  • + 6 authors+ 1 author

9 October 2021

Ilha Grande Bay is located in Angra dos Reis, Rio de Janeiro State, Brazil. The area is characterized by different land cover, complex topography and proximity to the Atlantic Ocean. These aspects make it susceptible to thermally and dynamically indu...

(This article belongs to the Section Meteorology)
  • Article
  • Open Access
25 Citations
3,271 Views
16 Pages

29 July 2021

Many NHPP software reliability growth models (SRGMs) have been proposed to assess software reliability during the past 40 years, but most of them have focused on modeling the fault detection process (FDP) in two ways: one is to ignore the fault corre...

  • Article
  • Open Access
25 Citations
6,095 Views
32 Pages

Quantitative Quality Evaluation of Software Products by Considering Summary and Comments Entropy of a Reported Bug

  • Madhu Kumari,
  • Ananya Misra,
  • Sanjay Misra,
  • Luis Fernandez Sanz and ,
  • Robertas Damasevicius and
  • V.B. Singh
  • + 1 author+ 0 author

19 January 2019

A software bug is characterized by its attributes. Various prediction models have been developed using these attributes to enhance the quality of software products. The reporting of bugs leads to high irregular patterns. The repository size is also i...

  • Article
  • Open Access
4 Citations
1,939 Views
21 Pages

3D Heterogeneous Geological Model of Natural Gas Hydrates in Shenhu Area, South China Sea

  • Langfeng Mu,
  • Dawang Liu,
  • Yi Zhang,
  • Hailong Lu and
  • Shipeng Wei

Natural gas hydrates, as a novel clean energy resource, have attracted widespread attention because of their highly complex reservoir properties, fluid distribution, and phase transitions. In particular, the fluid–solid interactions among hydra...

(This article belongs to the Section Geological Oceanography)
  • Article
  • Open Access
2 Citations
1,789 Views
29 Pages

Research on the Dynamic Response Patterns of Layered Slopes Considering Non-Homogeneity Under Blast-Induced Vibration Effects

  • Yong Zhao,
  • Yanjie Liu,
  • Shihui Jiao,
  • Tianhong Yang and ,
  • Wenxue Deng and
  • Shuhong Wang
  • + 1 author+ 0 author

24 January 2025

To investigate the dynamic wave propagation characteristics and dynamic response of heterogeneous layered slopes under a blasting vibration, a modeling method considering the slope’s layered dip angle and heterogeneity was proposed. Different d...

(This article belongs to the Special Issue Novel Technology in Landslide Monitoring and Risk Assessment)
  • Article
  • Open Access
26 Citations
3,573 Views
27 Pages

2 July 2020

A shift-dependent information measure is favorable to handle in some specific applied contexts such as mathematical neurobiology and survival analysis. For this reason, the weighted differential entropy has been introduced in the literature. In accor...

(This article belongs to the Special Issue Stochastic Modeling in Biology)
  • Article
  • Open Access
3 Citations
3,360 Views
24 Pages

9 March 2020

The ideal distributed network composed of distributed generations (DGs) has unweighted and undirected interactions which omit the impact of the power grid structure and actual demand. Apparently, the coupling relationship between DGs, which is determ...

(This article belongs to the Special Issue Advanced Approaches, Business Models, and Novel Techniques for Management and Control of Smart Grids)
  • Article
  • Open Access
2 Citations
3,047 Views
21 Pages

3 September 2025

One of the key components of the software quality model is reliability. Its importance has grown with the increasing use and reuse of open-source components in software development. Software reliability growth models are commonly employed to address...

(This article belongs to the Section Computational Engineering)

of 27