The instantaneous phase signal contains abundant information about the health state of machineries, which plays an important role in fault detection of machineries, rotor dynamic balance, transmission error of Rotate Vector reducer, etc.Traditional methods use signal processing methods based on encoders, EMD and Hilbert transforms or fractional del
Evaporation process affecting brines in salar of Huasco (Chile) has been reproduced at laboratory scale with the main objective of studying its geochemical evolving path.Natural brines have been evaporated under isothermal conditions, precipitating progressively calcite, gypsum, thenardite, and halite.This mineral sequence confirms the evolution of
Electronics Accessories Helopeltis cinchonae is an emerging pest of tea and causes severe damage to tea plantations in China.The female of H.cinchonae has been reported to produce a sex pheromone consisting of two components, hexyl (3R)-3-acetoxybutyrate and (5R)-1-acetoxy-5-butyroxyhexane, and lures containing the synthetic compounds have been sho
Purpose: to determine the peculiarities of the activities of fitness clubs in conditions of quarantine restrictions.Material and methods: during the implementation of the set goals, the following research methods were used: analysis of literary sources, organizational analysis, questionnaires, methods of marketing analysis (PEST analysis), media re