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.
This paper introduces a quadratic-nonlinearity powers-index spectrum (QNLPI(ƒ)) measure that describes quantitatively how much of the mean square power at certain frequency ƒ is generated by nonlinear quadratic interaction between different frequencies inside signal spectrum. The proposed index QNLPI(ƒ) is based on the bicoherence spectrum, and the index can be simply seen as summary of the information...
Experimental studies have shown that improved metal cutting efficiency can be obtained when a high-pressure water/coolant jet is injected at the tool-chip interface. The pressure exerted on the chip face by the jet is expected to reduce, for example, friction along the tool-chip interface, temperature rise in the chip and the workpiece, the cutting force, and residual stress in the finished workpiece,...
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.