The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In traditional control method of direct torque control (DTC), the selection of voltage space vector is based on the sector of flux, not on the precise position of flux, so the voltage space vector is not the optimal one. In this paper, a new optimal control strategy of DTC for induction motor is presented. In this method, a flux error vector is defined, and the optimal voltage space vector is selected...
The mixture of convective and stratiform clouds is an important precipitation system and also a major object for weather modification studies. To investigate the forming process, we studied 48 such clouds precipitation processes happened in GuiZhou province during 2005 and 2006 using Doppler radar echo images and other data. Convective and stratiform mixed clouds are primarily formed in two ways:...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.