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Adopt the concept of mutation in Genetic Algorithm to improve Particle Swarm Optimization. The experimental results show tow advantages for the mutation strategies. Firstly, It's workable for the algorithm and the performance was superior to fuzzy PSO and hybrid PSO; Secondly, the agitation strategy was more flexible.
Tailor rolled blank(TRB) is an new techniques of metal sheets, its manufacturing technology is involved in the process of multi-fields and multi-subjects synergism. For shorted exploiting cycle, reducing designing cost and improving the shape quality, the design method, namely rapid virtual design, was put forward for modeling of TRB rolled processes. Its flow chart, design system and structure were...
It was discovered that quaternion can be used in surgery navigation system (SNS), as an alternative and compact way to represent rotations. Coordinates conversion must be included when localizing in different coordinate. The application of quaternion in SNS coordinates conversion and the application of space registration in SNS are theoretically introduced in detail. The result of simulation shows...
In recent years, with digital maps and geographic information systems technology development and application of electronic maps came into being. With further development, many geographic information system applications will also be in the form of electronic map. Currently, the existing electronic map systems have achieved some results on research and application, but there are some issues leads to...
Internet-supported creative learning is highly autonomous and has special demands for the sufficiency of the way of obtaining information. As an important way of creative learning, network media permits the learners to obtain information they need conveniently and immediately, promotes the personalized interaction of learners who conduct the creative learning and that of learners with their instructors,...
In this paper, the classical fractal graph - Koch curve was generated with unitary regulation of L system in visual C++, and the regular fractal graphs, fractal trees and handkerchief curves which have typical fractal characteristics were generated by changing the elements of generation. The unitary regulation of L system is intuitively expressed by computer language, it can not only help to understand...
Role-Based Access Control (RBAC) is a mainstream access control method of software systems. After RBAC policies are formulated, there may be permission inconsistency between RBAC policies and practical execution paths. First, we defined the concept of RBAC permission consistency, and the concepts of execution path, Role Requirement array and Role Holding vector etc. On this basis, we proposed RBAC...
We designed a visual-auditory cross-model stop signal task to test the monitoring and adjustment of response inhibition based on the independent and interactive race model. It was implemented by E-Basic language based on E-Prime 2.0 software. 16 schoolchildren and 19 university students participated in the task. The Stop Signal Reaction Time (SSRT) decreases with the age grows, which indicates the...
In the current background of international education, bilingual teaching has been one of the key teaching methods. But the modes of bilingual teaching which are applied in colleges are different. Combining with the overview of computer department of Hunan International Economics University, this paper discusses the necessity of bilingual teaching and several modes of bilingual teaching which are often...
The essence and process of attribute value reduction is analyzed from the view of logic. Then a new algorithm for attribute value reduction based on rough set is proposed by constructing a discernible matrix and the correctness and feasibility is proved. In addition, the experiment shows that the algorithm is effective and it is easy to be realized by programming. Not only it can get more concise...
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