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.
FDK reconstruction algorithm is the most widely used for Cone Beam CT imaging system due to its simplicity and fast implementation. However, if misalignments exist in the detector, the original FDK reconstruction algorithm will result in deteriorated reconstruction quality because of the wrong correspondence of the voxels from the object and the pixels from the projection. One way is to apply rotation-based...
This paper proposes a fault detection and compensation scheme based on likelihood ratios for networked predictive control systems with random network induced time delay and clock asynchronism. The sets of predictive manipulated variables in a data packet are sent to the remote node at every sampling step, the compensator at the remote node receives the data packets and chooses the latest predictive...
The gear box fault occur can lead to the fatal breakdown of mechanical system. Back propagation neural network (BPNN) have been proved to be of widespread utility for identifying and classifying gear box faults to prevent serious damage in a mechanical system. Some researchers have used particle swarm optimization (PSO) to train BPNN. However, because the PSO algorithm has several parameters to be...
The push-pull convertor is widely used in ultrasonic motor drive as a DC/AC step-up convertor. In this application, the load of the convertor is the LC series compensation circuit in general. Because the operation mode is different from the traditional DC/DC applications, and also because of the non-linearity of the load, the push-pull convertor used in ultrasonic motor drive has more complex operation...
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.