Vasile I. Ursu

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The Birkhoff-Mal’cev problem of the structure of lattices of quasivarieties (see [1], [2]) is an important issue in the theory of quasivarieties. This problem is very important for the theory of quasivarieties as a number of quasivariety issues consists in studying the lattices of quasivarieties. Besides the main Birkhoff-Mal’cev problem, there is the local(More)
This paper presents a numerical method in order to measure and analyze the charging characteristics of storage batteries for PV power systems. The measurement data is retrieved from the PV modules by a specific data acquisition system. A numerical algorithm developed in the Matlab/Simulink environment is used to model the charging characteristics of the(More)
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