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The following topics are dealt with: computer theory; image processing; software engineering; wireless network; computational geometry; fuzzy set theory; and data handling.
Hydraulic control system is a typical highly nonlinear system, the loops of the system are coupled each other, so that the failure modes, failure mechanism of the hydraulic control system is very complex and diverse. Fault diagnosis of hydraulic control system is a uncertainty, incomplete information systems, which makes wrong diagnosis. Directing to the hydraulic press's hydraulic control system,...
This paper discussed the necessity, the possibility and the method of introducing GIS technology into LCA database study, analyzed the database structure and data elements of LCA database that included the data of the three pillars -ecology, economics, and social equity, a more comprehensive LCA database is innovated in this study.
Considering the current forecasting model had limited understanding of watershed hydro meteorological and a single model could hardly reflect the objective laws, by theoretical studying and practicing of combined forecasting method, the hydrological time series forecasting method based on multi-model combination was proposed. This method makes up for the lack of a single model, and makes full use...
The relation of feed transfer flexible guidance attitude with elevation and rotation of gun is studied in this paper. By analyzing the structure and movement characteristics of guiding system, a mathematical model for solving three-dimensional attitude of flexible guidance is proposed with principle of minimum potential energy, and the computing software is developed to confirm the attitude of flexible...
Based on load incremental approach, finite element model of inclined truss structure is established by using Ansys software. Then load factor, unit of effective strength and load increments is obtained by finite element analysis. With a minimum load increment norms and the branch - bound norms of the stage critical strength, the main failure modes of inclined truss structure is educed. Finally the...
SPH is a meshfree numerical method that allows the possibility of easily modeling flows with a complex geometry or flows where large deformations or the appearance of a free surface occurs. It is widely used for hypervelocity impact problems. This paper introduces the basic principles of SPH method. Major advantages and disadvantages of SPH method are discussed and listed. Application of SPH method...
In this paper we present a new data fusion method in information retrieval, which uses ranking information of resultant documents. Our method is based on the modelling of rank-probability of relevance of documents in resultant document list using logarithmic models. The proposed method is more effective than other data fusion methods which also use ranking information, and is as effective as some...
When multiple features can affect your decision, how do you deal with this situation? Content-based image retrieval (CBIR), the selection of images from a collection via features extracted from images themselves, is a typical case of this problem. A simple but highly efficient model based on spatial equilibrium is presented to solve this problem in this paper. Three styles of model can meet the different...
This paper elaborates the theory about how to use the information which is got from the gray-scale map to establish a lively three dimensioned terrain. This paper designs and implements a demonstration to generate the effect of three-dimensional terrain. The system uses the gray-scale map of each pixel of light and shade information to generate the three-dimensional terrain coordinates of the point...
The work to manage book is an extremely important link in the higher education, and it is the core and foundation of all universities and colleges. Changes as soon as possible traditional management mode, making use of the modern means to proceed science manage, having had became the problem then whole education system need solution. the author briefly introduces the development purpose and the background...
In this paper, we study the following nonlinear nonconvex programming problem (P): min f(x) s.t.g(x) ≤ 0 g(x) = (g1(x), g2(x), ⋯, gm(x))T, {1, 2, ⋯, m} Under the condition that the feasible set is bounded and connected, and has a point that the boundary is not positively linearly independent at this point, we propose the combined homotopy method to solve this problem by constructing new constraint...
Wyner-Ziv video coding (WZC) exhibits many properties like low-complexity encoding or embedded error resilience. The quality of side information takes an important role in the performance of WZC. In order to improve the performance of WZC, a new side information interpolation algorithm is proposed in this paper. In our approach, adjacent frames are recombined before encoding. At the decoder, side...
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