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Software for determination of surface tension with sessile drop method

100%

Lytvyn M.

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

2017

tom Vol. 21, No 1

65--76

The sessile drop method was implemented to calculate the values of the surface tension coefficient of liquid metals. Appropriate software was developed to increase the data processing efficiency and the accuracy of the obtained results. This paper provides information on the structure and applications of the designed programs as well as the underlying mathematical models used during computations. Since the determination of the surface tension coefficient in this study is based on the recognition of drop outlines from a digital image, the problems of calibration and appropriate photography mode adjustments are mentioned in this paper. In addition, the methods of controlling the research equipment using Arduino shields are described. Finally, the research results are presented in the form of graphs which show the temperature dependence of the studied parameters of metallic samples and compared with the literature data.

CoCoS: a new SINEX combination software

100%

Lytvyn M.

Artificial Satellites : Journal of Planetary Geodesy

2008

tom Vol. 43, No. 1

15--24

A simple and flexible algorithm for combination of space geodesy observations is presented. The CoCoS software that implements this algorithm is described in details. The combined GPS-VLBI solution for the CONT02 VLBI experiment data and observations from co-located GPS sites is obtained and discussed.