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.
E-Learning system, as a great product of modern information technology, is an important way to implement education modernization. Many e-Learning systems have been developed in recent years. However, most of them are unable to organize and present education materials flexibly according to individual learner's knowledge basis and learning ability. Based on detailed research of the deficiencies in current...
A new modeling method which compounds Multilevel Flow Model (MFM) with Petri-net is put forwards in order to solve the difficulty problem in fault locating for batch process of flow industry. The first step in modeling is to create a Petri-net which also can be used as an information network in MFM. The goal of the Petri-net set up is to describe the system status as being a no fault goal of MFM....
MFM (Multilevel Flow Models) is applied to build up a system for monitoring and fault location diagnosis of distributed facilities in power plant. In this system, all data acquisition unit composed of PLCs are linked together as a network through CAN bus to realize early root fault searching by applying MFM fault diagnosis algorithm. A PC connected to network is responsible for system modeling and...
A new MEMS-based shear-stress sensor has been developed for skin-friction measurements in wind tunnel tests. This new sensor design utilizes polysilicon bridges on silicon substrate as heating and sensing elements, greatly simplifying the fabrication process and increases the yield by eliminating the silicon nitride diaphragm and vacuum cavity in conventional MEMS shear-stress sensors. Since the bridge...
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.