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.
The samples of the pigeon surface were prepared as our research objective. The feature of the pigeon surface was analyzed by using the OLYMPUS stereo microscope and its image analysis system OLYCIATMM3. It was observed that the macro structure of pigeon body surface was non-smooth. Also, the drag reduction characteristic of the surface was resulted from the coupling effect of several factors. Based...
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.