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observational造句
(31) Analysis of the observational data, the TOMS total ozone, and NCEP circulation, shows that the atmospheric ozone amount experienced a high-low-high variation with low-high-low tropopause altitude. (32) The WCRP panel has been lobbying world space and satellite agencies about fixing the observational shortcomings. (33) Observational analysis is conducted of the effects of winter Pacific SSTA on the storm track and jet stream. (34) The article calculates the mean square root values of pulse noise, observational dynamic range and power spectrum of ground noise of all seismic station bases. (35) We used to think that hormone-replacement therapy reduced the risk of heart attacks by around half, for example, because this was the finding of a small trial, and a large observational study. (36) These results follow on the heels of an observational study in New York that found a weak link between higher folate levels and a lowered risk of Alzheimer's disease in older Americans. (37) The installation of this geoelectric station provides the observation of local geo-electric field, as well as the monitoring of potential earthquake precursors, with a sound observational basis. (38) But most of the available data has come from observational studies. (39) Most importantly, observational studies cannot distinguish indicators of risk from causal factors. (40) GEOSAT, a US altimetry satellite, is introduced in this paper. Its characteristics of the orbits, both theoretic and observational, are analyzed. (41) By analyzing the meteorological observational data of dust storms from 1952 to 1994, the intensity division standards are put forward, the features of spatial and temporal distribution are studied. (42) This Paper has Studied the observational parameters of 20 extragalactic H 2 O megamaser Sources. (43) A number of entirely new experimental and observational methods have grown to maturity. (44) Randomized and Observational Studies in Nephrology : How Strong Is the Evidence? (45) A uniformly congruent security model is presented based on observational congruence. (46) A differential arithmetic is proposed for simplifying the observational equation as well as for avoiding the computation of the unknown integer constant. (47) Using the statistically optimal inversion method 50 sets of simulation microwave radiation data are retrieved. The influence of observational error on the inversion accuracy is discussed. (48) In the second quarter of this century, enthusiasm for the observational approach began to wane. (49) As a scaling-up tool for the observational data, remote sensing technique makes scaling biomass estimation from ground plot to a large scale more feasible and effective. (50) According to the principle of SS-Y tensometer, We analyze the influence and relation of air pressure change toward observational daily change curve of tensometer. (51) Objectives: This prospective, single-center, observational study was conducted to define the frequency, risk factors, and relevance of HSV bronchopneumonitis. (52) A good artesian well corresponds to a sensitive body-strain gage, and its observational data include much... (53) The paramount task here facing observational astronomy is to study real interstellar clouds. (54) They both have no well established observational data to check the theory. (55) Observational evidence of rapid chlorine activation by mountain waves above northern Scandinavia. (56) An observational study on clinical effectiveness of tetrandrine(TD)combined with quinolyl piperazine hydroxy1 phosphate(QPHP)on 225 cases of silicosis was conducted. (57) By means of the normalization condition of the correlation function and the observational data, the ratio of the two components is estimated to be 1:4. (58) Experimental Astrophysicist George Smoot is an active researcher in observational astrophysics and cosmology. (59) Observational properties of the largest Local Group spiral M 31 ( Andromeda galaxy ) are presented. (60) Observational Learning Algorithm ( OLA ) is an ensemble method based on social learning theory.