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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
The methodology to determine the complete stress tensor original based on the evaluation of the convergences on the walls of the tunnel
 Malík, Josef ; Kolcun, Alexej ; Staš, Lubomír
The proposed methodology allows to obtain full stress tensor of deformation measurements convergence between surveying points two or more parallel sections.
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Annual report on the project FR-TI3/579 in the TIP project in 2013
 Staš, Lubomír
A complete methodology for determining the initial stress tensor of convergence measurements on the two profiles perpendicular to the longitudinal axis of the tunnel was developed and implemented. It was designed and tested algoritmus for optimization that allows to design the location of measurement points in advance on a pair of rails so that measurement errors are eliminated. It was designed a new methodology for measuring convergence, based on the use of a laser beam. Measurements were carried out at the convergence of three different profiles in Dolní Rožná locality.
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Slightly generalized regular space decompositions
 Kolcun, Alexej
Space decomposition methods represent an important part of numerical modelling process. In many applications it is suitable to use the simplest case of decomposition { regular rectangular grid: the whole raster graphic concept can be seen from this point of view. Dierent raster concept, based on regular hexagonal mesh, is analyzed e.g. in [18]. Generalized task { decomposition of the space to the set of the identical elements have been presented in various research areas since a long time, and it is connected with Hilbert's 18th problem [9], [10].
Fulltext: content.csg - Download fulltextPDF
Plný tet: UGN_0425285 - Download fulltextPDF
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