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.
Simulation models are key factors in evaluating the performance of any current communication systems. In addition, evaluating the improvements carried out along the optimization of a system requires access to information about behavioural changes induced on it. For Wimax and other wireless standards simulation results depend on many particular aspects regarding to link level models. This work summarizes...
Most of current user mobile devices incorporate a WiFi interface. Peer communications are based on Ad-hoc network configuration, but the main handicap is the radio coverage. The success in deploying services and applications based on this concept needs the development of relay protocols and applications that allows intermediate users the reception and forwarding of information to destination users...
A real- time, denoise, and compress algorithm based on the wavelet transform (WT) for abdominal electrocardiograms (AECG) signals is designed. In this study an algorithm is designed which achieves an AECG with minimal noise and high compression rate (66.7%) while keeping the AECG quality at a clinically acceptable level. This is done at the first stage before extracting the fetal electrocardiogram...
A new concept of membrane reactor for continuous retention of NADP(H) with non-charged ultrafiltration membranes is proposed. The presence of the high molecular weight polymer polyethyleneimine (PEI) in the reaction medium allow to achieve high retainment ratios for the native coenzyme when the molar ratio PEINADP(H) in the reactor is > 1. NaCl concentrations > 0.3 M decrease significantly...
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.