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15 Results Found

  • Article
  • Open Access
2,179 Views
30 Pages

16 January 2024

A recent development in Fault Tree Analysis (FTA), known as Dynamic and Dependent Tree Theory (D2T2), accounts for dependencies between the basic events, making FTA more powerful. The method uses an integrated combination of Binary Decision Diagrams...

  • Article
  • Open Access
6 Citations
1,799 Views
19 Pages

8 May 2023

Stochastic differential equations and Copula theories are important topics that have many advantages for applications in almost every discipline. Many studies in forestry collect longitudinal, multi-dimensional, and discrete data for which the amount...

  • Article
  • Open Access
9 Citations
2,475 Views
20 Pages

Dynamic Reliability Assessment Method for a Pantograph System Based on a Multistate T-S Fault Tree, Dynamic Bayesian

  • Yafeng Chen,
  • Jing Wen,
  • Yingjie Tian,
  • Shubin Zheng,
  • Qianwen Zhong and
  • Xiaodong Chai

26 September 2023

The operational reliability of rail vehicle pantograph systems is evaluated by transforming T-S multistate fault trees into dynamic Bayesian networks (DBNs), which take into account system multistability, long-lasting operation, dynamic failure, and...

  • Article
  • Open Access
1 Citations
321 Views
23 Pages

21 October 2025

The availability of accurate models capturing the realistic behaviour of complex systems is critical for the safe operation and optimal management of nuclear installations. However, the dynamic nature of such systems and the resulting dense network o...

  • Article
  • Open Access
4 Citations
2,190 Views
17 Pages

17 March 2025

Petroleum storage and transport systems necessitate robust safety measures to mitigate oil spill risks threatening marine ecosystems and sustainable development through ecological and socioeconomic safeguards. We aimed to gain a deeper understanding...

  • Article
  • Open Access
2 Citations
1,584 Views
26 Pages

23 March 2025

Aiming at the problems of complex calculation processes, insufficient risk data, and reliance on experts’ subjective judgments that exist in traditional probability analysis methods, this paper proposes a probability analysis method for hazardo...

  • Article
  • Open Access
9 Citations
3,701 Views
30 Pages

Explicit Integrator of Runge-Kutta Type for Direct Solution of u(4) = f(x, u, u′, u″)

  • Nizam Ghawadri,
  • Norazak Senu,
  • Firas Adel Fawzi,
  • Fudziah Ismail and
  • Zarina Bibi Ibrahim

16 February 2019

The primary contribution of this work is to develop direct processes of explicit Runge-Kutta type (RKT) as solutions for any fourth-order ordinary differential equation (ODEs) of the structure u ( 4 ) = f ( x , u , u ′ , u ″...

  • Article
  • Open Access
1,418 Views
32 Pages

5 February 2025

Spaceborne instruments have an irreplaceable role in detecting fundamental vegetation features that link physical properties to ecological theory, but their success depends on our understanding of the complex dynamics that control plant spectral prop...

  • Article
  • Open Access
17 Citations
3,302 Views
13 Pages

25 August 2020

We present a mathematical model of disease (say a virus) spread that takes into account the hierarchic structure of social clusters in a population. It describes the dependence of epidemic’s dynamics on the strength of barriers between clusters...

  • Article
  • Open Access
3,192 Views
22 Pages

Spatial Habitat Structure Assembles Willow-Dependent Communities across the Primary Successional Watersheds of Mount St. Helens, USA

  • Charli D. Minsavage-Davis,
  • Iris J. Garthwaite,
  • Marisa D. Fisher,
  • Addison Leigh,
  • Joy M. Ramstack Hobbs,
  • Shannon M. Claeson,
  • Gina M. Wimp and
  • Carri J. LeRoy

6 February 2023

The eruption of Mount St. Helens in 1980 resulted in a cataclysmic restructuring of its surrounding landscapes. The Pumice Plain is one of these landscapes, where tree species such as Sitka willow (Salix sitchensis) and their dependent communities ha...

  • Article
  • Open Access
1,926 Views
14 Pages

15 February 2023

In this paper, a layered, undirected-network-structure, optimization approach is proposed to reduce the redundancy in multi-agent information synchronization and improve the computing rate. Based on the traversing binary tree and aperiodic sampling o...

  • Article
  • Open Access
31 Citations
8,558 Views
21 Pages

Satellite Determination of Peatland Water Table Temporal Dynamics by Localizing Representative Pixels of A SWIR-Based Moisture Index

  • Iuliia Burdun,
  • Michel Bechtold,
  • Valentina Sagris,
  • Annalea Lohila,
  • Elyn Humphreys,
  • Ankur R. Desai,
  • Mats B. Nilsson,
  • Gabrielle De Lannoy and
  • Ülo Mander

10 September 2020

The OPtical TRApezoid Model (OPTRAM) is a physically-based approach for remote soil moisture estimation. OPTRAM is based on the response of short-wave infrared (SWIR) reflectance to vegetation water status, which in turn responds to changes of root-z...

  • Article
  • Open Access
2 Citations
1,375 Views
17 Pages

Multi-Environment Vehicle Trajectory Automatic Driving Scene Generation Method Based on Simulation and Real Vehicle Testing

  • Yicheng Cao,
  • Haiming Sun,
  • Guisheng Li,
  • Chuan Sun,
  • Haoran Li,
  • Junru Yang,
  • Liangyu Tian and
  • Fei Li

As autonomous vehicles increasingly populate roads, robust testing is essential to ensure their safety and reliability. Due to the limitation that traditional testing methodologies (real-world and simulation testing) are difficult to cover a wide ran...

  • Article
  • Open Access
3 Citations
2,632 Views
15 Pages

The dynamics of rural human-environment systems in developing countries have increasingly been attracting attention. Agent-based modeling (ABM) is a valuable simulation tool for detecting complex feedback loops in rural human-environment systems with...