You are currently viewing a new version of our website. To view the old version click .

Mathematical and Computational Applications, Volume 25, Issue 1

March 2020 - 17 articles

Cover Story: In the following paper, we demonstrate the potential of using computational models in helmet design, by evaluating the efficacy of a certified helmet with a finite element model of the human head as an injury prediction tool to assess its safety performance. Results indicate a significant risk of brain injury, highlighting the need to improve the design requirements established by helmet standards. View this paper.
  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (17)

  • Article
  • Open Access
7 Citations
3,778 Views
18 Pages

One of the effective ways of reducing power system losses is local compensation of part of the reactive power consumption by deploying shunt capacitor banks. Since the capacitor’s impedance is frequency-dependent and it is possible to generate...

  • Article
  • Open Access
6 Citations
2,971 Views
12 Pages

Chaos Synchronization for Hyperchaotic Lorenz-Type System via Fuzzy-Based Sliding-Mode Observer

  • Corina Plata,
  • Pablo J. Prieto,
  • Ramon Ramirez-Villalobos and
  • Luis N. Coria

Hyperchaotic systems have applications in multiple areas of science and engineering. The study and development of these type of systems helps to solve diverse problems related to encryption and decryption of information. In order to solve the chaos s...

  • Article
  • Open Access
2 Citations
3,189 Views
15 Pages

The present paper deals with nonlinear, non-monotonic data regression. This paper introduces an efficient algorithm to perform data transformation from non-monotonic to monotonic to be paired with a statistical bivariate regression method. The propos...

  • Article
  • Open Access
14 Citations
4,310 Views
26 Pages

Hybrid State Constraint Adaptive Disturbance Rejection Controller for a Mobile Worm Bio-Inspired Robot

  • Vania Lara-Ortiz,
  • Ivan Salgado,
  • David Cruz-Ortiz,
  • Alejandro Guarneros,
  • Misael Magos-Sanchez and
  • Isaac Chairez

This study presents the design of a hybrid active disturbance rejection controller (H-ADRC) which regulates the gait cycle of a worm bio-inspired robotic device (WBRD). The WBRD is designed as a full actuated six rigid link robotic manipulator. The c...

  • Feature Paper
  • Article
  • Open Access
4 Citations
3,516 Views
17 Pages

This paper investigates the permanent-magnet (PM) eddy-current losses in multi-phase PM synchronous machines (PMSM) with concentric winding and surface-mounted PMs. A hybrid multi-layer model, combining a two-dimensional (2-D) generic magnetic equiva...

  • Feature Paper
  • Article
  • Open Access
13 Citations
7,892 Views
21 Pages

Certified Motorcycle Helmets: Computational Evaluation of the Efficacy of Standard Requirements with Finite Element Models

  • Fábio A. O. Fernandes,
  • Ricardo J. Alves de Sousa,
  • Mariusz Ptak and
  • Johannes Wilhelm

Every year, thousands of people die in the European Union as a direct result of road accidents. Helmets are one of the most important types of personal safety gear. The ECE R22.05 standard, adopted in 2000, is responsible for the certification of mot...

  • Feature Paper
  • Article
  • Open Access
5 Citations
3,463 Views
25 Pages

For three-phase induction machines supplied by sinusoidal current, it is usual to model the n-bar squirrel-cage by an equivalent two-phase circuit. For a multiphase induction machine which can be supplied with different harmonics of current, the redu...

  • Article
  • Open Access
6 Citations
2,559 Views
17 Pages

Maximal Product of Graphs under Vague Environment

  • Behnaz Sheikh Hoseini,
  • Muhammad Akram,
  • Mehrnaz Sheikh Hosseini,
  • Hossein Rashmanlou and
  • Rajab Ali Borzooei

Graph models are found everywhere in natural and human made structures, including process dynamics in physical, biological and social systems. The product of graphs are appropriately used in several combinatorial applications and in the formation of...

  • Article
  • Open Access
2 Citations
3,516 Views
16 Pages

The paper considers the analysis of a traveling panel, submerged in axially flowing fluid. In order to accurately model the dynamics and stability of a lightweight moving material, the interaction between the material and the surrounding air must be...

  • Article
  • Open Access
50 Citations
5,161 Views
32 Pages

Spherical Fuzzy Graphs with Application to Decision-Making

  • Muhammad Akram,
  • Danish Saleem and
  • Talal Al-Hawary

In a network model, the evaluation information given by decision makers are occasionally of types: yes, abstain, no, and refusal. To deal with such problems, we use mathematical models based on picture fuzzy sets. The spherical fuzzy model is more ve...

of 2

Get Alerted

Add your email address to receive forthcoming issues of this journal.

XFacebookLinkedIn
Math. Comput. Appl. - ISSN 2297-8747