Selected forms of graphic and analytical presentation were discussed for multiplelevel explosions of material structure of complex products. In order to characterise the product structure a method was proposed to identify the degree of its complexity and the number of the structure level, using which the position of components is identified in graphic presentations. Four forms of graphic presentation were distinguished and identified for the product structure, i.e. imploded, exploded, vertical and horizontal. Algorithms for their development are proposed in this paper. Examples of furniture items were used to illustrate the discussed problems.
The structural materials of twenty one nests of the Japanese dormouse Glirulus japonicus (Schinz, 1845) collected at Mt Fuji and Mt Akadake in 1988, were analyzed. Fifty seven species of bryophytes were found: 42 species of Musci and 15 of Hepaticae which constituted the major portion of the materials sampled. Most of these species were epiphytes on tree trunks, and this confirms the supposition that the Japanese dormouse uses arboreal space.