The theory of elasticity offers us more complicated equations, but which do not differ much from the preceding ones. We still have three unknown functions u, v, w, to which I will add the auxiliary function Θ = du/dx + … Read More
Suppose we are looking for the law of cooling of an isolated solid body in space. It will be a question of finding a function V satisfying the equation dV/dt = kΔV, and which moreover is given for t = … Read More
Sfetcu, Nicolae (2023), Drobeta Turnu Severin Heavy Water Plant: Construction, Cunoașterea Științifică, 2:1, DOI: 10.58679/CS96723, https://www.cunoasterea.ro/drobeta-turnu-severin-heavy-water-plant-construction/ Abstract The heavy water plant was established under the name of Combinatul Chimic Drobeta, by Decree 400/16.11.1979, under the Inorganic Products Industrial Center … Read More
Suppose one or more permanent magnets placed in the presence of a perfectly magnetically soft body M. It is a question of finding a function V (the magnetic potential) which satisfies the Laplace equation in all the portion of space … Read More
Sfetcu, Nicolae, “Heavy water in Romania: Scientific and technological research, and plant design”, in Telework (January 08. 2023), DOI: 10.13140/RG.2.2.36803.68642, https://www.telework.ro/en/heavy-water-in-romania-scientific-and-technological-research-and-plant-design/ Abstract The National Nuclear Program, the studies of specialized institutes and commercial treaties with other countries, based on … Read More
We will first cite the following problem; a liquid is contained in a vessel which it completely fills; various moving solid bodies are immersed in this liquid; we know the movements of these bodies and we suppose that there is … Read More
Sfetcu, Nicolae, ” Heavy Water – Overview”, in Telework (2022), DOI: 10.13140/RG.2.2.31649.28003, https://www.telework.ro/en/heavy-water-overview/ Abstract An overview of heavy water: definition, properties, uses (with emphasis on the use of heavy water in nuclear reactors as a moderator and coolant). Technologies … Read More
When we consider the various problems of integral calculus which naturally arise when we want to go deeper into the most different parts of physics, it is impossible not to be struck by the analogies that all these problems present … Read More
Sfetcu, Nicolae (2022). Future of Science – Science of Science, DOI: 10.13140/RG.2.2.13183.69285, in Telework: https://www.telework.ro/en/future-of-science-science-of-science/ Abstract What will science look like in the near future? First, very closely coupled with, even dependent on, technology. Second, three factors will strongly … Read More
Appearance of heavy elements in the Universe Heavy elements 98% of visible matter is made up of hydrogen and helium. All the other elements (heavy elements: carbon, iron, oxygen in particular which are the constituents of organic matter and therefore … Read More
Bayesian reasoning Bayesian reasoning is a method based on inferences. This reasoning builds from observations a probability of the cause of a given event. The adjective “Bayesian” comes from British mathematician Thomas Bayes (1702-1761). It is him who formulated Bayes’ … Read More
A brief introduction to the subquantum regime, where the origination of all the observable events and processes of tour physical world can be found. Descending along the scale supplied by the divisibility of Quanta toward increasingly fine structures bearing fractional … Read More
