The selective enumeration of microbes in the mixed strain healthy yogurt were studied in this paper.

The selective enumeration effects were tested.

With the rapid development of basic research and application of Bifidobacterium in food,the method of selective enumeration of Bifidobacterium becomes very important.

Based on the selective calculation, different state vectors use corresponding method to modify the relative matric.

Based on selective calculation, the relative matrices are modified by diff.

Research on Selectivity Estimation Method in Spatial Database;

With the proof that mutually overlapped rectangles are sharing a common region which is also a rectangle, this paper gives a selectivity estimation technique for 3-way clique intersect .

This paper uses MBR buffer area and line segment buffer area of spatial object, according to the characteristics of data set in spatial join and distributed law of characteristic data, putting forward a selectivity estimation method based on point buffer area, which is used in spatial join selectivity estimation of characteristic data.

A mass transfer equation and equations for evaluating mass transfer coefficients and selectivity have been derived by taking into account the dissociation of ammonia in water.

The effect of H2SO4 concentration and reaction time on the xylose yield and the selectivity of hemicellulose hydrolysis in corn stover under 121 ℃ was studied by response surface methodology.

The ion selectivity coefficient was detected and the effect of different pH value was investigated.

This paper adopts with experiment report form to mix the solution selectivity coefficient of equipotential law mensuration fluorine electrode, determine to survey F~-suitable pH scope, survey the content of fluorine in running water respectively with the standard and method of calibrating curve by addition of law.

In this paper, the theory and methods of detetermination and the design of testing system for ion exchange selectivity coefficient are described.