The result Showed that ①The fibronectin content in the fresh plasma stored at - 20℃ for one to three monthS was Stable and there wasno effective on the determined result (P>0.0 5).

This paper reported the determined result of toxic effects of CUZ against Blattella germanica in laboratory. It indicates that the LT50 was 6. 8 days. Whose 95% confidence limits was 6. 36-7. 24 days.

By comparison with production performance data, it is indicated that employing horizontal well to reservoirs with bottom water is of better development effectiveness, and the determined result for productivity of horizontal wells is creditable and the technology is feasible.

It violates Euclidean axioms, so is in the implement of GIS, e.g., the determined result of overlap usually failed for two simple spatial objects. In order to overcome those shortages, we define the Regularly Spatial DiscreteDomains (RSDD), RSDD-based Primary Objects (RPOs), RSDD-based Objects (ROs).

the authors indicate that the determined result is coincident with that of TBAB method during the MBAC of montmo- rillonite within the sample less than or equal to()0.25m mol/g;

Therefore, duplicate tuples must be removed to obtain a uniquely-determined result.

In agreement with this independently determined result, the model also predicts that there are at least 106 receptors/cell.

1. The deuterium contents of two,bittern samples obtained from Chiaochou Bay in Tsingtao Locality and Kwangchou Bay in Chenkiang Locality were determined by float method. Sp. gr. of Shantung sample is 1.240 (28.0?Be') and that of Kwangtung sample is 1.260 (29.7° Be′). A sample:from Yellow Sea was chosen .as a standard for comparison.All determinations were carried out after normalization of O18 in the sample, by means of CO2-NaHCO3 equilibrium method. In. experiments employing a stream-lined spindle-shaped...

1. The deuterium contents of two,bittern samples obtained from Chiaochou Bay in Tsingtao Locality and Kwangchou Bay in Chenkiang Locality were determined by float method. Sp. gr. of Shantung sample is 1.240 (28.0?Be') and that of Kwangtung sample is 1.260 (29.7° Be′). A sample:from Yellow Sea was chosen .as a standard for comparison.All determinations were carried out after normalization of O18 in the sample, by means of CO2-NaHCO3 equilibrium method. In. experiments employing a stream-lined spindle-shaped float and setting the observation region of floating in the middle portion of liquid. column, therefore, a larger range of linear relation between temperature and velocity (rising or falling) of float is obtained, that is, temperature range is±0.33℃ and the velocity range is ±0.26 mm/sec.2.Determined results show that the density of Shantung bittern sample (28°Be′) is 4.208 r higher than that of standard sea water sample, that is, the D content of Shantung bittern is 0.0037 mole % D2O higher than that of the standard (Corresponding to 24.03% of D content of standard sea water sample), the density of K,wangtung bittern sample (29.7°Be′) is 6.250 r higher than that of the standard, that is, the D content of Kwangtung bittern is 0.0058 mole % D2O higher than that of the standard (Corresponding to 37.66% of D content of standard sea water sample). The max. experimental error is ±0.6 7.3.Comparing the determined results of these two samples from Shantung and Kwangtung we can see that the Kwangtung sample is more abundant in heavy water content (through °Be′ of two samples are not entirely the same, the density difference is still apparent). This agrees with the expected results caused by the evaporation difference which is due to the latitudinal difference between the two localities (Chenkiang situated at 21° north latitude and Tsingtao at 36° north latitude).4.The density difference between sample water and standard water shows that after solar evaporation of sea water and salting out of sodium chloride the D content in bittern is concentrated as expected. Thus, highly concentrated bittern may be used as raw material for production of heavy water--a valuable information for the comprehensive utilization of sea water and bittern.

This article gives some suggestions of increasing the precision of particle liberation determination according to the analysis of factors affecting it. Its emphasis is put on the mathematical analysis of the errors occurring in determination by the plane section and the correction coefficientsare related. It has been proved from geometric analysis of the simplified intergrown particles of equal axis which are shown in an adjacent distribution that the probabilities of the intergrowth shown in the plane section,...

This article gives some suggestions of increasing the precision of particle liberation determination according to the analysis of factors affecting it. Its emphasis is put on the mathematical analysis of the errors occurring in determination by the plane section and the correction coefficientsare related. It has been proved from geometric analysis of the simplified intergrown particles of equal axis which are shown in an adjacent distribution that the probabilities of the intergrowth shown in the plane section, by intergrown particles for valuable mineral to make up 1/2, 1/4, 3/4, are 0.67, 0.65, 0.65, respectively, the probabilities for free particles of valuable mineral are 0.165, 0.10, 0.25. respectively, and the probabilities for gangue free particles are 0,165, 0.25, 0.10, respectively. The probalities of intergrowth for valuable mineral to make up 1/2 by the section for intergrowth in the three kinds of intergrown particles are 0.5, 0.25, 0.25, respectively, the probabilities of intergrowth for valuable mineral to make up 1/4 are 0.25, 0.59, 0.16, respectively, the probabilities for intergrowth to make up 3/4 are 0.25, 0.16, 0.59, respectively. The results of the simulated experiment have a rather good agreement with the analytical value of theory. According to the data mentioned above, the concrete method for the stereometric correction of the results from the plane determination is given in the article. The method can make the results corrected from the plane determination more close to the stereometric condition. The author suggests that by application of mathematical statistics, the reliability of the determined results of the particle liberation can be analysed. By application of the big samples of some ore sample, the author has proved with K-S examination that the data obtained from the liberation determination for the mixed ore sample are well fitted in with the normal distribution. So the reliability of the determined results can be analyzed by using the Student's Distribution and the errors can be calculated. This method is simple. The corresponding relation between the amount of the particles determined and the amount of errors can be calculated by substituting the standard deviation of the big samples for that of the population. By doing so, the amount of the particles needed to be determined can be known according to the errors.

The system of 44i Boo is a triple star i'n which a well known visual binary A. D. S. 9494 consists of 44i Boo (A) and 44i Boo (B). The fainter component of the visual double star has a spectrum of G2V with rotationally-tbroadened absorption lines as found in W Ursae Majoris Stars. Schilt (1926) found photographically that this component is itself an eclipsing variable and spectroscopic binary.Speetroscopic observations of 44i Boo reported here were made by use of the 102 cm telescope and its Cassegrain spectrograph,...

The system of 44i Boo is a triple star i'n which a well known visual binary A. D. S. 9494 consists of 44i Boo (A) and 44i Boo (B). The fainter component of the visual double star has a spectrum of G2V with rotationally-tbroadened absorption lines as found in W Ursae Majoris Stars. Schilt (1926) found photographically that this component is itself an eclipsing variable and spectroscopic binary.Speetroscopic observations of 44i Boo reported here were made by use of the 102 cm telescope and its Cassegrain spectrograph, Yunnan Observatory, during March, 1981 and March, 1983.The equivalent widths of CaⅡ K and GaⅠ 4227 A lines showed variations with the orbital phase of the eclipsing binary. The variation curves of equivalent widths of CaⅡ K and CaⅠ 4227 A vs. the phases are shown in Fig. 1 and Fig. 2 respectively. Table 1 gives the observed details of 44i Boo.The pro'files of Hα lines vary also markedly. The radial velocities were determined by a comparator. We paid special attention to the radial velocities of CaⅡ K lines. They are different from other metallic lines and HI lines. The radial velocities of CaⅡ K lines vary with the orbital phase. The determined results of radial velocities are given in Table 2.We suggest a simplified model for the eclipsing binary 44i Boo (B) and on which its stellar activities and atmospheric structure are analyzed.The system of 44i Boo(B) is on the margin of dynamical stability, and it is blowing outwards strong stellar wind continually.The rate of mass loss of 44i Boo (B) was calculated, and the obtained result is dM/ dt=3.7X10-8 M⊙ /yr.Our atmospheric model of 44i Boo (B) is in well accord with the observations