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 circuit breaker is an important part of control and protection in the power system. Mechanical failure is the main fault of circuit breakers, and the loosening of fasteners is one of the typical mechanical faults. The self-loosening of bolted joints is closely related to the vibration, especially transverse vibration. There is strong vibration while the circuit breakers are opened and closed....
In real power system, when the three-phase short-circuit fault occurs, the vacuum arc in one phase will be influenced by the transverse magnetic field generated by neighbor phases and bus bars. This kind of effect is the main cause of the unstable arc and deflected erosion of contact plates, which leads to the failure of vacuum circuit breakers interruption. The objective of this paper is to get more...
Vacuum arc under an axial magnetic field (AMF), with the arc current increasing, the anode temperature will exceed the melting point of the anode material. When the anode melting pool is formed, and the rotational plasma of arc column deliveries its momentum to the melting pool, the anode melting pool begins to rotate, which is photographed by some researchers with high-speed camera. In this paper,...
Safe and effective manipulation of soft tissue during laparoscopic and other minimal access surgical (MAS) procedures can be enabled by use of electromagnetic force. We investigated magnet interaction force using finite element modeling (FEM) and tensiometer measurement, and found that our FEM results were in good agreement with measurement data. Then, we describe a novel method of ferro-magnetisation...
Carbon nanotubes (CNTs) are promising nanomaterials for biomedical applications in view of their excellent mechanical, chemical and electrical properties. Recently, CNTs have been used as electroporation agents because they are able to reduce significantly the required electroporation field. However, mechanism of CNT mediated electroporation enhancement is not fully understood. In this finite element...
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.