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Magnetic Properties of the Ultrafine Co Particle Systems
N. Perov,N. Sudarikova,A. Bagrets 한국자기학회 2003 Journal of Magnetics Vol.8 No.1
The method for evaluation of the particle size distribution of fine particles from hysteresis loop measurements is presented. The method is illustrated on the SiO₂-based Co nanoparticle systems. The influence of technological conditions of sample preparation onto particle size distribution is investigated.
Ivanovic, Zarko,Perovic, Tatjana,Popovic, Tatjana,Blagojevic, Jovana,Trkulja, Nenad,Hrncic, Snjezana The Korean Society of Plant Pathology 2017 Plant Pathology Journal Vol.33 No.1
Citrus blast caused by bacterium Pseudomonas syringae is a very important disease of citrus occuring in many areas of the world, but with few data about genetic structure of the pathogen involved. Considering the above fact, this study reports genetic characterization of 43 P. syringae isolates obtained from plant tissue displaying citrus blast symptoms on mandarin (Citrus reticulata) in Montenegro, using multilocus sequence analysis of gyrB, rpoD, and gap1 gene sequences. Gene sequences from a collection of 54 reference pathotype strains of P. syringae from the Plant Associated and Environmental Microbes Database (PAMDB) was used to establish a genetic relationship with our isolates obtained from mandarin. Phylogenetic analyses of gyrB, rpoD, and gap1 gene sequences showed that P. syringae pv. syringae causes citrus blast in mandarin in Montenegro, and belongs to genomospecies 1. Genetic homogeneity of isolates suggested that the Montenegrian population might be clonal which indicates a possible common source of infection. These findings may assist in further epidemiological studies of this pathogen and for determining mandarin breeding strategies for P. syringae control.
Leonid, Serejkin,Boris, Shifrin,Victor, Perov,Alexandr, Goldin International Journal of Computer ScienceNetwork S 2022 International journal of computer science and netw Vol.22 No.12
Renewable energy sources based on solar radiation, wind energy, geothermal energy, and biomass energy have now reached the level of industrial application. A new way to generate electricity using low-potential heat is to install a hydro-steam turbine. In hydro-steam turbines, hot water is supplied directly to turbine rotor nozzles without prior separation into steam and water in separators, which significantly increases the efficiency of hot water energy use. Such turbines are suggested to be used as autonomous energy sources in geothermal heating systems, heating water boilers and cooling systems of chemical reactors, metallurgical furnaces, etc. The authors conclude that the installation of hydro-steam turbines in heating plants and process boiler plants can also be effective if the used exhaust steam-water mixture at the turbine outlet is used to heat the network water or as return water.