In this paper is presents the results of the magnetic field analysis produced by the two layers stator six–phase windings, of the asynchronous motor for electric traction compared to the three–phase stator winding of ...
NUCA, Ilie; CAZAC, Vadim; GHERTESCU, Corneliu; ROTARI, Iulian; RAILEAN, Vlad; MELNIC, Anatol(Institute of Electrical and Electronics Engineers, IEEE, 2022)
The paper presents the current status and modernization of DC traction stations for powering trolleybuses. Most of the traction stations are over 50 years old and have a rigid structure, obsolete rectification equipment, ...
The multiphase electric drives are of interest in fields where reliability and higher torque are guiding criteria, especially important in electric traction. In this paper a six–phased asynchronous machine electric drive ...
TODOS, Petru; NUCA, Ilie; CHICIUC, Andrei; CAZAC, Vadim; BURDUNIUC, Marcel(Babeş-Bolyai University from Cluj-Napoca, 2022)
The work is a summary of the history of the industry and education development of electrotechnics in the Republic of Moldova during the independence period. With the national renaissance, the process of professional training ...
TODOS, Petru; NUCA, Ilie; TERTEA, Ghenadie; CAZAC, Vadim(Institute of Electrical and Electronics Engineers, IEEE, 2023)
The work is focused on identifying the equivalent circuit parameters and power losses of a six-phase asynchronous motor with the cage rotor, using a laboratory bench with an adjustable three-phase power supply and without ...
TODOS, Petru; TERTEA, Ghenadie; NUCA, Ilie; CAZAC, Vadim(Institute of Electrical and Electronics Engineers, IEEE, 2023)
Six-phase asynchronous motors are becoming increasingly popular in transport and industrial applications due to their advantages such as less torque ripple, better power distribution between the phases, higher efficiency, ...
MOLDOVAN, Artiom; NUCA, Ilie; MILICI, Dan; BANDORA, Mahmoud Abu(Institute of Electrical and Electronics Engineers, IEEE, 2023)
This paper contains the description of the solutions and tools for the implementation of this project. The proposed solutions are based on the implementation of new technologies in the technological part of water treatment ...
NUCA, Ilie; CAZAC, Vadim; MOTROI, Alexandr; GHCRŢESCU, Corneliu; EŞANU, Vitalie(Institute of Electrical and Electronics Engineers, IEEE, 2023)
The paper presents the development of a six-phase converter coupled with a six-phase asynchronous motor with two symmetrical three-phase windings. The main purpose of this paper is to test the designed and developed ...
BOSNEAGA, V.; SUSLOV, V.(Institutul de Energetică al Universităţii Tehnice a Moldovei, 2023)
The purpose of work is to investigate two - phase short-circuiting modes of new autotransformer FACT’s - type device and is intended for power systems flexible connection. The developed mathematical model contains the main ...
BOSNEAGA, Valeriu; SUSLOV, Victor(Institute of Electrical and Electronics Engineers, IEEE, 2023)
The purpose of this work is to study the steady-state modes of operation of proposed new device at single-phase short circuit of the load for different connection options of regulating autotransformer to hexagon circuit ...
JIGĂU, Gheorghe; DOBROJAN, Sergiu; CIOLACU, Tatiana; TURCHIN, Boris; DOBROJAN, Galina; PLĂCINTĂ, Nina; STADNIC, Angela; BOLOCAN, Nistor(Filiala (Secţia) Nord a Academiei de Științe a Moldovei, 2022)
The chernozems of the space between the Prut and the Dniester have an increased potential for resilienceadaptation to climate change due to the specific bio-pedo-climatic conditions of the region in the last 6.0-4.5 thousand ...
TODIRAȘ, Vasile; PRISACARI, Svetlana; LUNGU, Angela(Filiala (Secţia) Nord a Academiei de Științe a Moldovei, 2022)
En conditions de champ ont été testées bactéries ayant la capacité stimulant ou d,azotofixator. Par conséquence de la recherche on a établi leur efficacité a l,egard de la croissance, le développement , la productivite et ...
TODIRAȘ, Vasile; CORCIMARU, Serghei; PRISACARI, Svetlana; LUNGU, Angela(Filiala (Secţia) Nord a Academiei de Științe a Moldovei, 2022)
As a result of the investigation of the impact of soil contamination of the typical low-humus chernozem soil with polyethylene (LDPE, 1-5 g / kg) it was established that the amount of 5 g / kg is toxic both for the growth ...
TODIRAȘ, Vasile; CORCIMARU, Serghei; PRISACARI, Svetlana; LUNGU, Angela(Filiala (Secţia) Nord a Academiei de Științe a Moldovei, 2023)
In the given material, the influence of iron-based nanoparticles on the growth processes of soybean plants on the background of soil polluted with persistent organic pollutants (POPs) was studied. A more pronounced effect ...
ИНДОИТУ, Диана(Filiala (Secţia) Nord a Academiei de Științe a Moldovei, 2023)
Bacteria, one of the most abundant groups of microorganisms in soil, play an important role in organic matter decomposition and nutrient cycling. In-depth studies of soil bacterial communities became possible only thanks ...
FRUNZE, Nina(Filiala (Secţia) Nord a Academiei de Științe a Moldovei, 2023)
The study of the abundance and genetic diversity of the prokaryotes of the typical chernozem, using the PCR (polymerase chain reaction) molecular method of sequencing the 16S rRNA gene, was carried out for the first time ...
ARTIOMOV, Laurenția(Filiala (Secţia) Nord a Academiei de Științe a Moldovei, 2023)
The paper presents the result of the research of the microbiome of the typical chernozem. The anthropic load of the soil, the agricultural management system influenced the formation of the communities of Archaea and Bacteria ...
BATÎRU, Grigorii; COMAROVA, Galina; BOUNEGRU, Serghei; ADAMCIUC, Arcadii; COJOCARI, Dumitru; ROTARI, Eugen(Filiala (Secţia) Nord a Academiei de Științe a Moldovei, 2023)
The paper presents the results of using the polymorphism of zein (the prolamin fraction of the maize endosperm protein) under an applied aspect to solve the problem of accelerating and improving the quality of corn seed ...
CONDRUC, V.; DESEATNIC-CILOCI, A.; LABLIUC, S.(Institutul de Microbiologie şi Biotehnologie, 2009)
Scopul cercetărilor a constat în studierea particularităţilor morfologice – creşterea, sporularea, dimensiunile, forma, aspectul şi culoarea coloniilor ale tulpinii în studiu la cultivarea pe medii nutritive agarizate.
CONDRUC, V.; CILOCI, A.; CLAPCO, S.; DVORNINA, E.; LABLIUC, S.(Institutul de Microbiologie şi Biotehnologie, 2022)
In the research were included the nanoparticles (NPs) as follow: nanodioxide of Ti (TiO2) with dimensions of 21 nm and <100 nm, titanium silicon oxide nanoparticles TiSiO4<50 nm, nanooxides Fe3O4 50-100 nm, ZnO ≤50 nm and ...