The paper is focused on the tram input LC traction filter stabilization by the Energy Storage System. The input LC filter is almost undamped resonant circuit which is mainly excited by the motor constant torque command. The tram during voltage drops increases the current flow&...

The Timepix3 readout chip - the latest member of the Medipix family of hybrid pixel detectors - brought several new functionalities in comparison with the older Timepix, i.e. a high hit-rate, a time granularity of 1.5625 ns, a data-driven readout scheme (with a per pixel ...

The article is devoted to the physical nature of geomagnetism, magnetic storms and methods of predicting their origin and deals with geomagnetic induced currents called GIC (Geomagnetically Induced Currents) and their effect on power transformers. A simplified, single-phase transmission system is...

We describe the technical design and show results of first measurements of a network based on the Timepix3 and the Katherine readout (with Gigabit Ethernet interface) installed in the ATLAS cavern in the LHC in January 2018. The network consists of four Timepix3 detectors, arr...

A model of hybrid cladding on a cylindrical surface is built and numerically solved. Heating of both substrate and the powder material to be deposited on its surface is realized by laser beam and preheating inductor. The task represents a hard-coupled electromagnetic-thermal problem...

Existing oxide dispersion strengthened (ODS) alloys are, besides Ni-based superalloy single crystals, the most creep-resistant materials. The creep resistance of the ODS alloys may, moreover, be significantly improved thanks to increasing the volume fraction of the nano oxides by more than o...

Machinability is a technological characteristic expressing the aggregate influence of the physical, mechanical and chemical properties of the machined material on the course and on the economic or respectively, qualitative results of the cutting process. It can be evaluated as a qualitative,...

In trolleybuses in service, fatigue cracks were frequently encountered in a welded structural detail in their rear axle housing. Sufficiently representative stress-time histories for the critical cross section through this part were obtained by measurement during rides with empty as well as&...

Autonomous wireless body-implanted devices for biotelemetry, telemedicine, and neural interfacing constitute an emerging technology providing powerful capabilities for medicine and clinical research. We study the through-tissue electromagnetic propagation mechanisms, derive the optimal frequency range, and obtain th...

This article deals with the evaluation of the size of the forces generated by the process of grinding and the size of wear on the grinding wheels when the cutting conditions are changed. Cutting speed and depth of cut most influence the wear of the grinding wheels&#x...

This work deals with the comparison of the acquired geometric accuracy of values on the complex-shaped surface after grinding on the 5-axis grinding machine when changing the cutting conditions. The experiment is designed to include those input parameters that affect the abrasive proces...

Purpose: A model of hybrid fillet welding is built and solved. No additional material (welding rod, etc.) is used. Heating of the welded parts is realized by laser beam with induction preheating and/or postheating. The purpose of these operations is to reduce the temperature&#...

This paper deals with the evaluation of the amount of filler influence and the ultraviolet (UV) radiation influence on selected dielectric properties of the innovative type of composites. These composites consist of a linear low-density polyethylene matrix and a clay filler (with differ...

Purpose: A novel technique for control of complex physical processes based on the solution of their sufficiently accurate models is presented. The technique works with the model order reduction (MOR), which significantly accelerates the solution at a still acceptable uncertainty. Its advanta...

This paper is focused on the study of co-fired multilayer structures realized by Thick Printed Copper (TPC) technology. TPC technology is used for the manufacturing of substrates for power applications and it enables simple manufacturing of multilayer structures. These structures usually con...

A dedicated synchronization bus has been developed and integrated into the FITPix COMBO device. It can be used as Timepix read-out (involving back-side-pulse acquisition) or as a simple spectrometer device—Spectrig (when an external single pad sensor is connected, e.g. Δ E detector). Th...

This paper focuses on the development of a fully programmable morphological coprocessor for embedded devices. It is a well-known fact that the majority of morphological processing operations are composed of a (potentially large) number of sequential elementary operators. At the same time,&#x...

The requirements for electrical machine and its load ing grow with the development of society. With increasing p erformance and decreasing dimensions of electrical equipment, the losses grow. In mind of those high demands it is necessary to search new&#x...

This paper presents a research focused on advanced screen printing technique development. In the paper it is shown that it is possible to realize structures with line width below 50 μm at the pitch below 100 μm and ultra-thin film deposition well below 1 μm by advanc...

This paper describes control algorithms for the output part of a diesel-electric power supply unit which is composed of a three-phase four-leg voltage source inverter with a sinusoidal filter. The paper is focused on the development of PWM strategies for the mentioned inverter. The...