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 document is the result of a first approach to recognizing vowels through using Adaptive Neuro-Fuzzy Inference Systems (ANFIS), applying different strategies to train these systems. The tests perform with data from a same speaker used for training and checking; also from another speaker with different gender for checking. Training data are established minimally. Different strategies are applied...
This paper presents the development of a mathematical model to improve quality of service but including the reduction of the carbon path in a Mobile Virtual Network Operator (MVNO), based on semi-group theory. Through a case study presents the method of construction and calculation of the elements in the kernel that allows disconnection or connection of a cluster head inside the MVNO. Also is presented...
This paper presents an equivalent model that allows representing bi-voltage autotransformer-based systems (such as 2 25 kV ac, 2 15 kV ac) as if they were monovoltage systems. This model can be used for symmetrical (such as 2 25-kV 50-Hz systems) and unsymmetrical (such as 12/24-kV 25-Hz systems) configurations. It is based on two simplifying hypotheses that establish relationships...
This article provides guidance to conduct a site-specific seismic hazard study, giving suggestions for overcoming those challenges that are inherent to the significant amounts of epistemic uncertainty for sites at remote locations. The text follows the general process of a seismic hazard study, describing both the deterministic and probabilistic approaches. Key and controversial items are identified...
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.