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.
To improve the throughput performance of HF-PLC systems, a dual-mode transmission system, which utilizes the mode diversity of differential and common modes, has been studied by the authors. However, the system which uses the common-mode has a risk to cause the unintentional radiation problem. To solve the problem, an Adaptive power control method to the Electromagnetic Environment, which is called...
Inverter power supplies have been developed as an analog circuit, over past decade digital control has emerged as a viable candidate for the inverter power supplies. As a first step of design, the modeling and simulation are very useful for the development and implementation in both hardware and software design. It can lead to improve the performance, reduced development and production cost and time...
Power-Line Communication (PLC) based Local Area Networks (LAN) in ships are one of the promising applications of the PLC technology. However, the unintentional-radiation is the serious problem for ship applications because the PLC system must coexist with the emergency communication system and shortwave broadcasting services. In this paper, a power control method of PLC modems depending on the radiation...
The process comprises the following steps: mixtures of calcined coke and pitch are pulverized, they are size adjusted to give carbon precursor powders, dry mixed with 1-5 parts boron carbide powders of same grain size, CIP moulding is carried out, and then fired and carbonized in non-oxidizing atmospheric at <2200°C. The ceramic contains homogeneously dispersed B carbide, and shows high strength.
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.