Before the nuclear device was exploded, the French President Jacques Chirac said his country might carry out fewer than the eight tests originally planned.
The Russian biologist G. F. Gause performed numerous tow-species experiments in the laboratory, in which one of the species became extinct when only a single kind of resource was available.
It was found that when the capacitive ignition occurred, arc voltage will keep minimum arcing voltage, but arc current possibly attenuates in sinusoidal form with different circuit parameters.
Next the researcher introduced a third option, a third paddle that would initiate a new trial, giving the dolphin the choice of passing on difficult trials.
From the above results, we can have the implication that the body metabolism level and immune function of piglets might be decreased by weaning stressors.
The smelting parameters and continuous-casting process in developing carbon welding rod steel of H08A are introduced, the cause for success and lost is analyzed, some measures proposed.
Mechanical parameters of sloshed liquid are obtained finally. The parameters determined by this method are fairly consistent with the results of theoretical calculation and …