The silicon carbide (SiC) inverter brings great advantages to the motor drive systems of new energy vehicles; however, severe challenges to the bearings also happen.The high dc bus voltage and switching frequency of SiC inverter can increase the discharge frequency and energy when the bearing grease film collapses.As a result, the bearing suffers s
The Medium Resolution Imaging Spectrometer (MERIS) launched in February 2002 on-board the ENVISAT spacecraft is making global observations of top-of-atmosphere (TOA) radiances.Aerosol optical properties are retrieved over land using Look-Up Table (LUT) based algorithm and surface reflectances in the blue and the red spectral regions.We compared ins
Small and medium-sized businesses are widely recognised as the cornerstone of growth in emerging and middle-class countries, and South Africa is no different.They generate many job possibilities and salaries for many individuals who live in cities, making them an essential component of average national production.The main objective Procedure Drapes