In this thesis, the fineness and the size are measured, in order to analyze and compare them. The fineness is measured with the cross-sectional area and the size is measured with traditional gravimetric method. The section shape of raw silk is assumed be approximately elliptical, and the diameters of different grade raw silk are measured in mutual perpendicular directions with Fiber fineness instrument, which connects microscope with computer, and the shapes and diameters of raw silk can be directly watched and measured on the computer screen. Meanwhile the weights of the corresponding segments of the raw silk are weighed. The raw silk fineness series and size series are analyzed through statistic parameters such as the expectation, variance, auto-correlation coefficient, correlation coefficient. And the difference between different grades of raw silk is analyzed. The result of this study is useful for improvement of raw silk reeling process and inspection of raw silk quality.
On Doob's conjecture about fine limit and Julia point