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.
During the process of mechanical products rapid design, the key issues trouble the designers are obtaining the design knowledge and extracting the design rules. In order to solve the problem of design knowledge complex range, the level/modular approach of product unstructured data division is presented. Through the unstructured data study of mechanical products, the domain ontology model based on...
In order to overcome the limitation of traditional maintenance support and adapt to the development of the maintenance support for armored equipment, this paper puts forward the idea of constructing a maintenance support system for armored equipment based on PHM technology, emphatically analyses the key technology of the system, such as data acquisition and sensor technology, data mining and information...
A new clustering classification approach based on fuzzy closeness relationship (FCR) is studied in this paper. As we know, fuzzy clustering classification is one of important and valid methods to knowledge discovery. One of problems in fuzzy clustering classification is to determine a certain fuzzy sample classification in given limited sample space. Another is its validity, that is to say, if the...
Study on scientific research capability of national defense university is conducted with a view of analyzing effect elements, in which an evaluation index system and evaluation model of scientific research capability of national defense university is constructed. Scientific research capability of national defense university consists of four aspects, i.e., scientific research input, transformation...
Based on the essence and characteristic of university science research capability (USRC) and the highly self-organized, self-adapted and self-learned characteristics of back propagation (BP) neural network, the paper conducts a research on evaluation of USRC, in which an evaluation index system of USRC is constructed and a BP neural network model with three tiers is presented to evaluate USRC, which...
Based on the substance of university science research capability (USRC) and the highly self-organized, self-adapted and self-learned characteristics of back propagation (BP) neural network, the paper conducts a research on evaluation of USRC, in which an evaluation index system of USRC is constructed and a 15-7-1-typed BP neural network with three layers is presented to evaluate USRC, which provides...
The new high voltage electric energy meter CGDS-12W which integrates the voltage sensor, current sensor and metering device, display unit and remote communication unit together is introduced. The line voltages and currents are converted into micro voltage and current signals (in mV and mA) by the specially designed sensors. The converted signals are fed into a multiplier where a DC voltage signal...
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.