Isolated cell nuclei from young leaves of Vicia faba L. have a high level of RNA polymorose activity and can serve as a good source for purification of higher
Observations of shelterbelts and windbreaks have demonstrated that the horizontal variations of the wind speed at the leeward of the shelterbelt caused by the
The drag and the interia coefficients Cd,CM of wave-current force on vertical pile are well related to the redefined Keulegan-Carpenter number N’ Kc by the te
Based on the observed data, a map of high-tide coastline shifts is made for the area around the estuary of the Yellow River, from which the shifting of coastli
By using aqueous buffers of different pH values as the mobile phase the chromatography retentionbehaviours of some organic acids, bases and ampholytes on the c
A two-dimensional, time-dependent and warm cumulus cloud model has been used to investigate problems concerning cloud merger and interaction. The results of nu
In this work, two groups of experiments have been done by using mice and luminous bac-teria. The resnlts show that there exists an antagonism in toxicity betwe
Being used as a mathematical model of the latent period, a prognostic equation for probability of apparition, which is determined mainly by accumulated effecti