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 generation model of speech signal has been regarded as an all-pole AR model. Distortion will happen when normal speech is disturbed or interfered. In this paper, we proposed a new signal model excited by the non-white noise signal to represent transfer function of a closed oxygen mask. Using LPC method to find the parameters of the all-pole signal model from the practical distortion signal, the...
Sparse representation has been introduced to tackle the target detection problem in hyperspectral imagery. While using windows to build the sparse dictionary, there exists target contamination problem. In our approach, we utilize a learning method based on convex optimization to build a dictionary for sparse target detection. Through its application, prior information such as the size of windows can...
A skyhook control policy was selected and analyzed based on the character of Magneto-Rheological Fluids (MRF) Dampers, while the skyhook control model was established. A half roll plane vehicle model with 4DOF was simulation analyzed for the control strategy. The control method was investigated in two aspects including the vehicle ride comfort and handling stability through three basic input signals...
The statistical experimental design was used in this study to optimize the extraction of astaxanthin with the assistance of microwave. Three factors, including the volume of anhydrous alcohol, the extracting time, and cell wall breaking time, were screened out by Fractional Factorial Design (FFD). Then the stable area was obtained by the steepest ascent method. And finally the extraction process was...
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.