Kinetic equations describing nucleation on active centers are solved numerically to determine the number of supercritical nuclei, nucleation rate, and the number density of nuclei for formation both of droplets from vapor and also crystalline phase from vapor, solution, and melt. Our approach follows standard nucleation model, when the exhaustion of active centers is taken into account via the ...

This paper shows that wavelets can be used to model a variety of power system transients using a fraction of the total number of coefficients. This modeling technique paves the way for fault classification and improved protection.

OBJECTIVE It has been suggested that household crowding may constitute an environmental risk factor for schizophrenia. The present population-based cohort study explores the associations of childhood family size and living conditions to schizophrenia. METHOD The cohort comprised people born at Helsinki University Central Hospital from 1924 to 1933, who went to school in the city and were stil...

OBJECTIVES It is critical to implement effective multiple countermeasures to mitigate or retain the spread of pandemic influenza. We propose a mathematical pandemic influenza model to assess the effectiveness of multiple countermeasures implemented in 2009. METHODS Age-specific parameters, including the transmission rate, the proportion of asymptomatic individuals, the vaccination rate, the s...

background: bio-stimulators as biological substances stimulate metabolism and metabolic processes, which can be increase plants yield and secondary metabolites content. objective: the aim is to introduce bio-stimulators as bioactive amino acid compounds to increase yield and help to sustainable agriculture. methods: this experiment was conducted at acecr on the base of randomized complete block...