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The Dirichlet problem is always possible; this principle is known as Dirichlet’s principle and the first proof is due to Riemann. If a function V is subject to taking given values at various points of a certain surface, bounding a … Read More
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This rapid review of the various parts of mathematical physics has convinced us that all these problems, despite the extreme variety of boundary conditions and even differential equations, have, so to speak, a certain air of family which it is … Read More
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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
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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
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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
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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
The post Poincaré: On the Partial Differential Equations of Mathematical Physics – Laplace equation for magnets appeared first on Telework.
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
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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
The post Poincaré: The problem of the pulsating spheres of Bjerknes appeared first on Telework.
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
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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
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