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Many mechatronic system design problems are formulated into a multi-objective optimization model. In such a model, multiple objectives with their weights and all variables that describe a designed system from different perspectives (such as kinematic motion, shaking force, controller) are put together and equally updated to seek an optimum. In this paper, such a model is called multiple objective...
The effects of the medium proportion on the seedling height, ground diameter, and photosynthesis of Carya cathayensis in containerized seedling were studied. The results showed that the effects of nine medium proportion on C. cathayensis containerized seedling growth were different. The seedling height and ground diameter were shorter under the control than those of the other treatments. The seedling...
By using the critical point theory of variational method and Lax-Milgram theorem, we obtain the new results for the existence of the solution of the second-order impulsive elliptic differential equations with non-periodic boundary value problems.
More and more fonts have sprung up in recent years in digital publishing industry and reading devices. In this paper, we focus on methods of evaluating digital Chinese fonts and their typeface characteristics to seek a good way to enhance the character recognition rate. To accomplish this, we combined psychological analysis methods with statistical analysis. It involved an extensive survey of distinctive...
The design of piled embankments is extremely complex. Arching effect is one of the main reasons why the piles with individual caps can support most part of load. Several methods exist for estimating the magnitude of arching occurring in the embankment fill. This paper proposed a new method, based on the homogenization approach, for calculating the arching effect.
With the popularization of campus network and the development of wireless network, the role of computer technology in management of athletic competition is more prominent. However, the sunshine sports made campus sports interesting. Standardized operations of general events of competitive sports are restricted and relevant management system is impacted to various degrees. Early competition procedures...
An ontology is an explicit specification of a conceptualization. In this paper, A domain ontology is build based on Google page directory, used the relation among the concepts. We search the domains which the match concepts of the query terms belong to or include in the domain ontology. And we build a new domain ontology based on these domains and the match concepts. Two concepts of domain subordinate...
Query expansion technology and formal concept analysis (FCA) are two effective methods for improving the query precision in the information retrieval field. In this paper, formal concept analysis which aims at modeling concepts is adopted to expand the user query and a new query expansion approach is proposed. We use the TREC as the contexts and build concept lattices. Then the expansion source is...
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