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Computation, Volume 10, Issue 3

March 2022 - 13 articles

Cover Story: Concerned about the increasing outburst of wildfires globally, the Fluid Mechanics Laboratory (FML) team proceeded to the conceptual design of an unmanned aerial vehicle (UAV) specially designed to tackle this phenomenon. The innovative aspect of the research was studying the response and aerodynamic efficiency of the UAV wing model in a two-phase flow of air and fire embers. Numerical simulations were conducted using three different meshing configurations. These were a fully structured mesh, an unstructured mesh, and a mosaic poly-hexcore mesh. The final validation of the simulations was achieved through comparison with the results obtained from the wind tunnel experiment conducted at FML, using a 3D-printed prototype. View this paper
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Articles (13)

  • Article
  • Open Access
9 Citations
3,273 Views
23 Pages

Quantum embedding is a divide and conquer strategy that aims at solving the electronic Schrödinger equation of sizeable molecules or extended systems. We establish in the present work a clearer and in-principle-exact connection between density m...

  • Article
  • Open Access
5 Citations
4,323 Views
21 Pages

This study aims at developing models in analyzing the results of proficiency testing (PT) schemes for a limited number of participants. The models can determine the best estimators of location and dispersion using unsatisfactory results as a criterio...

  • Article
  • Open Access
10 Citations
3,513 Views
18 Pages

Performance Enhancement of APW+lo Calculations by Simplest Separation of Concerns

  • Long Zhang,
  • Anton Kozhevnikov,
  • Thomas Schulthess,
  • Hai-Ping Cheng and
  • Samuel B. Trickey

Full-potential linearized augmented plane wave (LAPW) and APW plus local orbital (APW+lo) codes differ widely in both their user interfaces and in capabilities for calculations and analysis beyond their common central task of all-electron solution of...

  • Article
  • Open Access
17 Citations
4,882 Views
20 Pages

A Comparative Study of Autonomous Object Detection Algorithms in the Maritime Environment Using a UAV Platform

  • Emmanuel Vasilopoulos,
  • Georgios Vosinakis,
  • Maria Krommyda,
  • Lazaros Karagiannidis,
  • Eleftherios Ouzounoglou and
  • Angelos Amditis

Maritime operations rely heavily on surveillance and require reliable and timely data that can inform decisions and planning. Critical information in such cases includes the exact location of objects in the water, such as vessels, persons, and others...

  • Article
  • Open Access
15 Citations
3,290 Views
15 Pages

Computation of Nonlinear Load Harmonic Currents in the Presence of External Distortions

  • Aleksandr Skamyin,
  • Aleksey Belsky,
  • Vasiliy Dobush and
  • Ilya Gurevich

This paper deals with the issues of computation of the nonlinear load harmonic currents in the presence of external distortions based on the real measurements with help of passive harmonic. Such values are necessary when modeling an equivalent nonlin...

  • Article
  • Open Access
4 Citations
2,516 Views
15 Pages

DC Drive Adaptive Speed Controller Based on Hyperstability Theory

  • Anton Glushchenko,
  • Konstantin Lastochkin and
  • Vladislav Petrov

The scope of this research is to develop a hyperstable adaptive control system of a direct current (DC) drive speed for effective load torque attenuation. The proposed speed controller is based on the model reference adaptive control framework and in...

  • Article
  • Open Access
7 Citations
3,575 Views
15 Pages

The interest for properties of clusters deposited on surfaces has grown in recent years. In this framework, the Density Functional based Tight Binding (DFTB) method appears as a promising tool due to its ability to treat extended systems at the quant...

  • Article
  • Open Access
3 Citations
4,127 Views
32 Pages

This paper presents a regularization framework that aims to improve the fidelity of Tikhonov inverse solutions. At the heart of the framework is the data-informed regularization idea that only data-uninformed parameters need to be regularized, while...

  • Article
  • Open Access
41 Citations
7,438 Views
21 Pages

Clustering Analysis for the Pareto Optimal Front in Multi-Objective Optimization

  • Lilian Astrid Bejarano,
  • Helbert Eduardo Espitia and
  • Carlos Enrique Montenegro

Bio-inspired algorithms are a suitable alternative for solving multi-objective optimization problems. Among different proposals, a widely used approach is based on the Pareto front. In this document, a proposal is made for the analysis of the optimal...

  • Article
  • Open Access
14 Citations
4,050 Views
19 Pages

Early prediction of mortality and risk of deterioration in COVID-19 patients can reduce mortality and increase the opportunity for better and more timely treatment. In the current study, the DL model and explainable artificial intelligence (EAI) were...

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Computation - ISSN 2079-3197