IKBFU's Vestnik

2012 Issue №1

Cultural landscape system zoning of the European part of Russia

Abstract

The article is devoted to the study of cultural landscape systems of the European part of Russia. The author addresses the problems of the current state of cultural landscape zoning in Russian geography and considers a vari-ant of cultural landscape zoning of the European part of Russia at different territorial levels on the basis of the system approach. The author describes the main criteria used in cultural landscape zoning.

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Three-dimensional computational modelling of water cooling over the coastal slope: a comparison of hydrostatic and non-hydrostatic solutions

Abstract

This article addresses the structure and dynamics of current and temperature fields in the coastal zone of a large water body generated by seasonal variations of heat-exchange conditions at the water surface. Numerical solutions of three-dimensional hydrostatic and non-hydrostatic models MIKE3-FlowModel in shallow and deep parts of the basin are compared. It is shown that the structure of fields is reproduced adequately by both models and water currents are similar; however, the hydrostatic model produces a smoother current field and significantly larger horizontal temperature gradients.

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Comparison of the methods of total antioxidant activity analysis

Abstract

Five varieties of apples from the Baltic region were studied by means of two different analytical methods. The results of experiment demonstrate that the values of total antioxidant activity obtained through spectrophotometric and amperometric methods are comparable. The authors determined the relation between the total content of ascorbic acid and phenolic compounds in apples, pulp, and juice of the variety.

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