COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 30 Issue 4

Miniaturisation of electrical machines

Approaches for a miniaturisation of electrical machines that are based on an electromagnetic principle have to overcome numerous challenges. Some of these are only a result of the…

Recent progress in wiring networks diagnosis for automotive applications

Aging wiring in cars, aircraft, trains and other transportation means is identified as a critical security area. The purpose of this paper is to develop a new methodology for wire…

A statistical study of scattering in periodic and random helix layers

This paper aims at providing information on scattering in layers composed of periodic and non‐periodic arrangements of small metal helices. Metal helices exhibit a pronounced…

Numerical modeling of a MEMS actuator considering several magnetic force calculation methods

The purpose of this paper is to investigate the accuracy of different force calculation methods and their impact on mechanical deformations. For this purpose, a micrometer scaled…

Numerical simulation of electrical engineering devices: Magneto‐thermo‐mechanical coupling

The paper seeks to present a methodology of computer simulation of coupled magneto‐thermo‐mechanical processes in various electrical engineering devices. The methodology allows…

Time and Laplace‐domain methods for MTL transient and sensitivity analysis

The purpose of this paper is to present the development and comparison of selected time‐domain and Laplace‐domain methods for the simulation of waves propagating along…

Position determination based on electrical capacitance tomography

The purpose of this paper is to calculate the two‐dimensional (2D) centre position of objects with known shapes based on the reconstruction image of a square sensing area…

Domains of validity of quasistatic and quasistationary field approximations

The paper aims at proposing a uniform and demonstrative description of two well‐known and widely used approximations of slowly time‐varying electromagnetic fields, i.e. the…

Mutual impedance calculation between buried conductors of finite length

The paper aims to develop expressions for calculating the mutual impedance between isolated conductors buried in homogeneous earth. The conductors have finite length and arbitrary…

Testing of composite materials using advanced NDT methods

The purpose of this paper is to present capabilities of terahertz imaging technology in case of various composite materials and to propose a new defect detection algorithm.

A straightforward deduction of the electric circuit power

The paper seeks to do the following. To provide an expression of the electromagnetic power flow that is alternative to the Poynting's theorem expression, overcomes its postulate…

PEEC method: circuit models for electromagnetic field problems

The paper aims to give the reader a consolidated state of art in the full‐wave modeling of passive interconnection systems using equivalent circuits and presents several…

Discontinuous piecewise‐linear discrete‐time dynamics – maps with gaps in electronic systems

Many important electronic systems are modelled by discrete‐time equations with nonlinearities that are discontinuous and piecewise‐linear, often arising as a result of…

Geometric dynamics of nonlinear circuits and jump effects

This paper seeks to give an outline about the geometric concept of electronic circuits, where the jump behavior of nonlinear circuits is emphasized.

Foundations of network theory

Different axiomatizations of network theory are considered. Kirchhoff networks are regarded with priority. Multipole and multiport networks are introduced as alternative variants…

CNN‐based ultrafast solver of stiff ODEs and PDEs for enabling realtime Computational Engineering

This paper seeks to develop, propose and validate, through a series of presentable examples, a comprehensive high‐precision and ultra‐fast computing concept for solving stiff…

Analysis of transistor circuits having multiple DC solutions with the thermal constraint

The purpose of this paper is to develop a method for finding all the DC solutions in nonlinear circuits with the thermal constraint.

Model reduction of parasitic coupling networks of mixed‐signal VLSI circuits

This paper aims to present a method for the efficient reduction of networks modelling parasitic couplings in very‐large‐scale integration (VLSI) circuits.

Neural predictors and wavelet transformation for forecasting the PM10 pollution

The aim of this paper is to develop the accurate computer method of predicting the average PM10 pollution for the next day on the basis of some measured atmospheric parameters…

Optimum exciter design for Magnetic Induction Tomography (MIT)

The purpose of this paper is to present the methodology of designing an exciter for Magnetic Induction Tomography (MIT). The design of the exciter must satisfy the following…

Experimental evaluation of the current‐phase relation of a Josephson junction

Josephson junctions act as active elements in superconducting electronics. The behavior of this nonlinear element is characterized by the relation between current and the quantum…

Robust contrast enhancement by a coupled oscillatory paradigm: An application for visual sensors in transportation

An image contrast enhancement is one of the most important low‐level image pre‐processing tasks required by the vision‐based advanced driver assistance systems (ADAS). This paper…

Learning Optimal Synthesis of Voltage Regulators using PSPICE

The paper aims to present a learning environment for optimal synthesis of voltage regulator circuits (LEOS‐VRC) using PSPICE simulator.

Guest editorial