We propose a method to incrementally compute and use, during the concept formation, the relevance of a concept property. This relevance is computed through the account of the property correlation with other ones and it is used by the concept quality function in order to improve predictive accuracy. The proposed approach is analyzed concerning both the prediction power of the generated concepts ...

In this paper we consider a mathematical model for photoacoustic imaging which takes into account attenuation due to thermodynamic dissipation. The propagation of acoustic (compressional) waves is governed by a scalar wave equation coupled to the heat equation for the excess temperature. We seek to recover the initial acoustic profile from knowledge of acoustic measurements at the boundary. We ...

Time-cost trade-off is one of the most important subjects in project management and of interest to contractors. The goal of time-cost trade-off is sensivity analysis of project costs to changes in activity duration in order to obtain the best combination of activity duration decrease, in a way that the sum of project costs is minimized. In the heuristics presented in this area, time crashing is...

Problem. The wide spread of computer technology as a means processing information has led to the informatization society and emergence fundamentally new technologies. Therefore, security should be taken care in advance when developing using such Today, well-being, sometimes life many people, depends on degree In modern society, an important problem is protection that become subject purchase sal...

This paper presents the results of experimental studies on deformation and strength anisotropy gravel-pebble soils used in soil dams. During stabilometric tests, varying shear angles were obtained for stone at different orientations particles working chamber, whether horizontal or vertical. As hydrostatic pressure chamber increased to 0.8 MPa, a reduction by 8-12 degrees depending direction lay...