Finally,two ratios of Raman s cattering coefficients were obtained as follow:S 3 /S 2 =0.3987and S 2 /S 1 =0.4801,which agreed very well with the corre - sponding experimental values.

Results: The TC level of low dose group and high dose group were obviously reduced( P <0.05), the level of HDL-C, HDL2-C as well as two ratios of HDL-C/TC and HDL-C/LDL/C improved ( P <0.05), while level of LDL-C had no significantly change ( P >0.05).

Methods:Thymidine was selected as the internal standard. The separation was performed on Hypersil ODS 2 (200mm× 4.0 mm,5μm)column and a mobile phase consisting of acetonitrile and 0.01mol·L -1 NaH 2PO 4 with two ratios of 4∶96 and 1.8∶98.2 was suitable for the preparation analysis and pharmacokinetic study of cefadroxil dispersible tablets. The detection wavelength was 254nm.

A double difference similar to the AD method is used but the two ratios of the double difference are weighted inversely with?β(?β=β1-β2 for a pair).

In this paper the sum of these two ratios, called the transmission-diffusion summation (S), is used to analyze the spatial and seasonal variations of diffuse radiation.

For other routes of administration, the two ratios are identical in all compartments only when there is no elimination process.

Taking account of the momentum structure of the gap function, we derive a closed relation between the two ratios that contains no adjustable parameters and agrees with the experimental data.

The emergency fund level is measured by two ratios: quick emergency fund divided by three months' after-tax income, and comprehensive emergency fund divided by three months' after-tax income.

On the basis of the fundamental principle of three-phase induction motors we have obtained a new method of predetermining motor parameters in terms of specified performances by using the ratios of parameters.The characteristic feature of this method is that the derived expressions are simple and convenient for use. Before making design calculations of the motor, its inherent parameters can be quickly predicted according to the specified performances. Hence, in the course of making necessary modifications, one...

On the basis of the fundamental principle of three-phase induction motors we have obtained a new method of predetermining motor parameters in terms of specified performances by using the ratios of parameters.The characteristic feature of this method is that the derived expressions are simple and convenient for use. Before making design calculations of the motor, its inherent parameters can be quickly predicted according to the specified performances. Hence, in the course of making necessary modifications, one can control the design data in such a way that the parameters calculated from the design procedure will conform to those predetermined values for the specified performances, so that the desired performances of the motor can be secured and aimless calculations are avoided. Besides, we have derived some approximate formulae for predicting the two ratios, and the accurate values of which can be obtained only by "trial and error". Their approximate values necessary for the preliminary design can also be conveniently predetermined according to the specified performances. Thus, the number of repetitive calculations can be greatly reduced.Calculated examples show that the results obtained from the derived formulae are satisfactory.

A new method is presented for the determination of ε for a smooth convex target with bistatic radar. Recently the method which is widely used is to measure the ratios of orthogonal components of a reflected field for two different incident angles. According to the two ratios the ε of the target can be evaluated. In the new method a plane wave with a particular direction of polarization is used to illuminate the target.When the ratio of the components of the same direction for two different...

A new method is presented for the determination of ε for a smooth convex target with bistatic radar. Recently the method which is widely used is to measure the ratios of orthogonal components of a reflected field for two different incident angles. According to the two ratios the ε of the target can be evaluated. In the new method a plane wave with a particular direction of polarization is used to illuminate the target.When the ratio of the components of the same direction for two different incident angles was measured at observation points, then the ε of the target can be evaluated.Expression for evaluation of ε is derived.

A numerical method for calculating a fully-coupled model of one-dimensional two-phase nozzle flow is described in brief. Governing equations are derived. The Runge-Kutta-Gill method is adopted to solve the equations numerically. The solution for uniform acceleration of gas phase is utilized as an approximate solution for the dimensionless distance x*(=x/L) = 0 to 0.02,i.e.ug = ax*. The initial value of a is determined by a trial and error approach and then checked at the throat. The solution is continued to...

A numerical method for calculating a fully-coupled model of one-dimensional two-phase nozzle flow is described in brief. Governing equations are derived. The Runge-Kutta-Gill method is adopted to solve the equations numerically. The solution for uniform acceleration of gas phase is utilized as an approximate solution for the dimensionless distance x*(=x/L) = 0 to 0.02,i.e.ug = ax*. The initial value of a is determined by a trial and error approach and then checked at the throat. The solution is continued to the throat where the conditions must be satisfied. To eliminate the singularity of the equation, a superseding variable is introduced. The computations are performed for velocity-lag as well as temperature-lag of five parsticle sizes and two ratios of particle to gas flow rates.Temperature, pressure and velocity distributions of both gas and particle along the length of the nozzle are also obtained.In addition, various modes of one-dimensional two-phase nozzle flow have also been briefly reviewed.