Hans Walser, [20060527a], [20160731] Golden Puzzles 1 Nine triangles We take nine congruent triangles (Fig. 1).

A vertex square of T is a square containing T with exactly one vertex of T at a corner of the square and the other two vertices on the two (open) non-adjacent sides of the square

A Heron triangle has integer sides and integer area; such a triangle is always the juxta- position (in a positive or negative sense) of two pythagorean triangles along a common

For example, the complementary triangle A m B m C m whose vertices are midpoints of sides, the anticomplementary triangle A a B a C a whose vertices are intersections of

After the second round of applications in the previous year, the number of active partners reached a total of nine large companies: Bank Austria, the

[Water remaining in the root zone of soils can be brought back up to the surface through evapotranspiration, the water goes into the atmosphere from evaporation and transpiration,

The goal of the Task Group includes developing models and simulation tools that encompass the most typical unit processes within a wastewater treatment system (primary treatment,

Irrespective whether nanofi ltration or reverse osmosis membranes were used, the same feed spacer channel pressure drop increase and biomass concentrations were observed (Figure

Her teaching and research focuses on computational methods, aspects of flood modeling and vulnerability related to floods, lake and reservoir modeling, river systems and water