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.
Multi-objective optimization yields indispensable information about the best possible design trade-offs of an antenna structure, yet it is challenging if full-wave electromagnetic (EM) analysis is utilized for performance evaluation. The latter is a necessity for majority of contemporary antennas as it is the only way of achieving acceptable modeling accuracy. In this paper, a procedure for accelerated...
In this paper, size reduction of antenna structures taking reflection response and total efficiency into account has been investigated. In order to find available design trade-offs concerning the antenna footprint, its wideband matching, and efficiency, numerical optimization has been employed. Appropriate formulation of the objective function permits identification of the designs that exhibit the...
Power electronic systems do not always operate under ideal condition because of the conflict between computational efficiency and simulation precision. In addition, there is significant computation burden in real-time simulation of voltage source converter closed-loop control. Hence, the power electronic real-time co-simulation design based on FPGA+DSP+PC architecture is put forward. The design adopts...
Time is a good scale for a microblog search. The traditional retrieval model only uses content to query microblog information. Many studies thought that the relevant microblogs most likely appear when it is close to the instant time of query. Through an analysis of microblog data, people find that the relevant information in microblogs possibly appears when it is far from the query time. These two...
With the widely use of CAN in the industrial control field, means of transportation, and so on, it is significant to improve the performance of the corresponding simulation platform to make them be more useful for simulating the systems using CAN cards. Firstly, this paper introduces the overall structure of the KD-DRT simulation platform and the characteristic of CAN. Second, determines the form...
The complete stress-strain curve of rock is the mechanical property data which is used widely and the most elementary and important. But the material of rock is of special complex natural structure. It is very hard to obtain the complete and true performance data of rock by the common material tester which causes rock broken easily. This paper studies the rock mechanics tester intelligently controlled...
With the crisis of energy becoming more severity, the research of cutting down the drag of commercial vehicles is more and more important. In this work, to reduce the drag of a van body truck, aerodynamic drag reduction designs are carried out by the method of numerical simulation to lay a foundation for the digital manufacturing technology of van body truck. First, plates are fixed on the aft-body...
Technology of software reuse can satisfy development of the modern manufacturing system with building embedded CNC system effectively and low cost. The paper proposes the component model for embedded CNC system and describes its functions by analyzing the characteristics of the embedded CNC system.
It is a difficult problem of studying the protein folding process in the protein research field. In this paper, a new simulation algorithm-snake simulation algorithm is put forward to solve the problem. In order to prove the key function in snake simulation algorithm is correct and feasible, theory of molecule oscillation and molecule kinetics are used. In addition, bring forward a model that describes...
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.