Methods: 100mL of ultravist was injected through left elbow vein, slice thickness/slice distance was 3mm/1.5mm, pitch 1.5, delayed time 14 sec, spiral scanning ranging from above diaphragm 2cm to aortic arch level.
Dark escaping test showed that in the flial rats of 6\^70 mg/kg group the delayed time was (3\^86±1\^40)s and the positive rate of passive escaping response was 24%,while those in the control were (1\^68±0 70)s and 6% respectively.
The major experimental results are listed as follows: l)The lag time of Alcaligenes eutrophus DJ1 and Pseudomonas SM302 decrease from 255h and 216h to 24h and 3.5h, respectively, and the cells grow better one by one generation after four batchs of domestication.
After three months of genistein supplementation to ovariectomized rats, the trabecular bone volume, mean osteoid surface width, mineralization lag time, and osteoid maturation period were sigmificamtly improved.
The basic parameters of bone dynamics were determined by bone metrology. Results There was remarkable difference between the two groups in the mean distance and mineralization apposition rate of double label bands marked by tetracycline(P<0.05), while the mean osteoid seam width and mineralization lag time had no remarkable difference(P>0.05).
Selection of Embedding Dimension and Delay Time in Phase Space Reconstruction
A new algorithm is proposed for computing the embedding dimension and delay time in phase space reconstruction.
Thereafter, by means of the iterative algorithm of multiple autocorrelation and Γ test, the near-optimum parameters of embedding dimension and delay time are estimated.
Finally, the expression of the group velocity of the guided mode in optical planar waveguide was obtained, which clearly shows that the time delay upon total reflection is the sum of the group-delay time and the Goos-H?nchen time at given any time.
Ignition delay time was found to be longer than deflagration-to-detonation transition (DDT) time, and the sum of the two would change little as cycle frequency increased.