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Morphological analysis of the Woji River in Port Harcourt, Nigeria : using temporal data and mathematical algorithm

Anya M. U. K., Ezekwe C. I., Oyegun C. U.

Landform Analysis

2017

Vol. 35

45--54

The research analysed morphological variations of the Woji River between 1986 and 2016 using mathematical extrapolations and temporal data. A 50% reduction in the River mean channel width, full-bank discharge and the stream power was found. Channel siltation occurred due to high sediment fluxes from rapid urban processes versus reduced stream power of the river. Water hyacinth invasion, domestic waste dumps and narrow culvers constricted the river channels. Finally, an impaired river status was found and extinction projected by 2043. Recommended were correction and monitoring exercises to check activities along the river channel and to restore the head stream wetlands.

Under and exact estimates of complexity of algorithms for multi-peg tower of Hanoi problem

Novikov S.

Scientific Issues of Jan Długosz University in Częstochowa. Mathematics

2007

Vol. 12

87-96

It is proved under and exact estimates of complexity of algorithms for the multi-peg Tower of Hanoi problem with the limited number of discs.

Mathematical algorithm for computer aided modeling of ground surfaces

Kuzinovski M., Stamboliska Z.

Systems : journal of transdisciplinary systems science

2002

Vol. 7, No. 1 sp.

331-338

Mathematical basis for computer aided design of ground surfaces microgeometric structure are presented in the paper. Basis under which this algorithm is developed is the copying of the grinding wheel active profile in to the machined surface.