There have been seven years in which the ratio of abnormal stations is more than 0.5 since 1987,and four M≥7 earthquakes happened in Yunnan and vicinity in the following year,the corresponding rate is 57%;
The obtained results are verified by the 23 earthquakes of Ms≥5.0 occurred in West Yunnan region since 1975, getting time forecast corresponding rate of 94.7%, generalization rate of 78.3%, place forecast accurate rate of 73.7%, magnitude forecast accurate rate of 84.2%, which have passed the examination of R value evaluation of prediction ability under confidence level of 97.5%, achieving remarkable efficacy.
4 well in Huailai,Hebei from 1990 to 2002,the anomalies of the mercury content were analyzed. The results show that the corresponding relation of the mercury anomaly to the earthquakes in better. Since 1990,the anomalies have very high corresponding rate for the small and moderate earthquakes in the monitoring range and the earthquakes above M5.0 far from the survey well.
According to the statistical corresponding relation between seismicity in Taiwan and South China regions since 20~(th) century, it is found that the corresponding rate of moderately strong earthquakes in South China to the earthquakes with magnitude of 6 or so in western Taiwan occurred in one year is 0.5;
By integral evaluation, the value of χ~2 check was less than 95 per cent of confidence level. It shows that at present the practical correspondence rate of earthquake prediction in a year scale is very low in our country.
The corresponding ratio of earthquake is 5/6=0.83 and false alarm is 1/6=0.17. All the earthquakes happened within 3 months after the ending of the anomaly, which was a short-term prediction index with high corresponding probability.
Based on analysis of the influencing factors of separate injection, we carried on field applications of anchored Y342 packer balancing technology, concentric integration layer-separation & testing technology and nitride-anti-erode technology, which increased the layer-separation success ratio from 39.1% to 82%, injection-to-producing-well corresponding ratio from 72.4% to 85% and waterflooding reserves of 216×10~(4)t.
The preliminary method and index of judging abnormality are summarized by studied the earthquakes with Ms≥6.5 in China continent during 1970～1979 in this paper. The places of earthquakes with Ms≥6.0 in China during 1988～1990 and 1994～1996 are checked and the corresponding ratio is 64%～76%.
The comprehensive prediction project of the precursor swarms in West Yunnan takes the P≥0.42 as threshold value, by which the corresponding ratio of M≥5 earthquakes reaches 88% around the distinguished precursor swarms in the following two years.
In this way, all methods are evaluated. The results show that 46% anomalies (P =54%) identified by γfactor of M2 waves of ground tilt solid tides, 23% anomalies ( P =42%) recognized by difference analysis, 30% anomalies ( P =34%) picked up by Kallman filtering and 19% anomalies (P =37%) obtained by maximum correlation coefficient are corresponded to earthquakes.
The results showed that there would accur M_6≥6.0 earthquakes in 418 or 312 days separatly when M_8≥4.7 earthquakes appeared the quiet period and the active period defined by us in the time sequence ,and the corresponding since 1920,they appeared quiet and active characteristic scales 5 events separatly.
The linear correlations were evaluated between the visual field MD and each of 5 parameters in sectorial discs. Results The sectorial disc areas were mostly in correspondence to the damaged hemi fields (CVI: 92.68%, RA: 87.80%,RV: 82.93%).
In this way,all methods are evaluated. The results show that 46% anomalies (R=54%) identified fromγfactor of M2 waves of ground tilt solid tides,23% anomalies (R=42%) recognized from differ analysis,30% anomalies (R=30%) picked up from Kalman filtering and 19% anomalies (R=37%) obtained from maximum coefficient of correlation are corresponded to earthquakes.
However, the rate constant for MycFDH thermal inactivation in the temperature range of 54-65°C is 4-6-times higher than the corresponding rate constant for the enzyme from Pseudomonas sp.
The corresponding rate constants for inactivation differ by a factor of about 30.
The rate constants of carbocation decay in alcohols are more than 20 times higher than the corresponding rate constants in water.
These functions were used for calculating the constants of the CH4-xIx ? CH4-xIx-1 + I and CH4-xIx + I ? CH4- xIx-1 + I2 equilibria, which, in turn, were used for calculating the corresponding rate constants in the high concentration limit.
We present here a model quantum dynamics that generates vibrational deexcitation cross-sections and the corresponding rate coefficients for the collision of He2 + with He.
The SPA data recorded in the Clock Room of Yunnan Observatory from Mach in 1982 to May in 1985 are added up and compared with those of the corresponding period obtained at Shanxai observatory and published in SGD. In addition, the SPA data are also compared with the data of the radio bursts and H-alpha solar flares obtained at Yunnan Observatory in the corresponding period.