The Voronoi diagram arises if a group of bodies expand from a point of origin and compete for space on an equal footing. This is the case of cells in the epithelium. These have the shape of a scutoid, a recently described geometric solid. Using a free CAD design program and additive manufacturing, scutoids can be generated, applying the Voronoi …
Calculation of the expansion rate of the universe, the density of dark energy in it and the study of the Hubble Tension, which is among the most important unsolved problems in today’s cosmology
A known disagreement in today’s cosmology concerns the universe’s expansion rate – the “Hubble Tension”, which arises due to different measurement methods leading to different results. In this study, the values of Hubble’s constant (the universe’s expansion rate), the dark energy and mass density in the universe are calculated. An LSQ algorithm fitted redshift and distance data of 1a supernovae …
Assessing the Impact of Second-Level Education on Key Aspects of Adolescents’ Life and Development’
This project is a multiyear study undertaken over 3 years (’20, ’21, ’22), encompassing the opinions of over 2,500 students and 220 teachers on the impact of secondary school on students’ social development, physical health and mental wellbeing and outlining possible improvements to the education system. Also considered was the impact of COVID-19 on the mentioned areas and also Online …
Gaming Accessibility, 3D printed adaptive gaming controller accessory for individuals with disabilities
Background: Cerebral palsy (CP) is the most common (3:1000) childhood movement disorder. Gaming can help integrate individuals with disabilities into a community, but those with CP struggle with gaming due to limited hand function and fine motor coordination. Objectives: To develop an affordable and personalizable adaptive gaming controller add-on for individuals with CP to play online games and connect with …
Design of traction inverter with SiC semiconductors
The rising cost of electric energy has presented significant challenges to transportation companies. To avoid operating at a loss, this may lead to them increasing fares, reducing services or route cancellations. The propulsion system is the most important component of electric vehicles as it enables their motion. The main elements of the propulsion system are the traction motor and its …
Thermography-based driver assistance system
We have developed a software and device that can reliably detect and alert drivers of potential hazards, such as animals or people on the road or roadside, beyond braking distance, even under poor visibility conditions. We have achieved this through an external device equipped with a thermal camera, which operates at high speed. This information is then transmitted and processed …
Development and evaluation of a hybrid solar-thermoelectric power generation system in a marine environment and usage of hydrodynamic propulsion
In this study, a Hybrid-Solar-Thermoelectric with Magneto-Hydrodynamic Propulsion (HSTM) system that provides an innovative solution for sustainable energy production and eco-friendly transportation in maritime environments, is proposed. The hybrid energy harvesting system features a monocrystalline solar panel and a series of thermoelectric generator (TEG) modules enclosed within a vacuum glass dome, placed beneath the solar panel. The results demonstrate that …
An application for the prevention of road accidents
The object of the Project is the construction of an Android mobile application, where traffic accidents will be recorded easily by the police via GPS to inform the citizens in real time. The purpose is to mark the dangerous points of the road network, where repeated accidents occur (Black Spots), so citizens can be warned in time to avoid further …
Modelling of a population during climate change
Climate change constitutes a selective pressure on populations because increasing temperatures result in a selective advantage or disadvantage for certain individuals depending on their genetic predisposition.We wrote a program to simulate such developments using the example of the reproductive success of cold-blooded animals. Cold-blooded animals were the obvious choice because their dependence on temperature can easily be described using mathematical …
Thermally triggered motion of pyrolytic graphite on a magnet array
When hydrocarbon is heated to its decomposition temperature pyrolytic graphite can be crystalized in ordered layers. This material has an unusual characteristic. It can levitate above a chequerboard arrangement of magnets due to its diamagnetic property. We delved into the reason for this phenomenon. One question in particular interested us: can the levitation process be manipulated by applying heat or …