The method to realize a beacon of small area on an uncooperative and extended target by using stimulated Brillouin scattering (SBS) threshold effect is presented. The process of laser propagation through 10km atmospheric path with SBS is simulated in cases of different atmospheric turbulence (C 2 n=10 -16 ～10 -12 ). The distribution of the phase conjugate light on the target was obtained from the simulation.
At 28eC and 31℃ the reproduction rate and protein synthesis of yeast were activated in doses of 2.31 J·cm-2 and 3.23 J·cm-2 etc. . And the exponential period of the growth was largely reduced for irradiated cells.
This is a threshold effect with respect to B and ; it is observed only for B>amp;gt; Bc (B?0.4 T) and .
The observed threshold effect of the anomalous suppression of charmonium production agrees well with the predictions based on the assumption of Debye color screening in the formation of quark-gluon plasma.
Numerical calculation based on the resulting system of equations provides insight into the effect of noise on the oscillation threshold and makes it possible to discover the "higher threshold" effect in saturation-free noisy materials.
On kinematical and dynamical factors in experimental observation of deuteron-stripping threshold effect
Suggested explanations for the falling parasuicide rate in Edinburgh include the possibility of a "threshold" effect and the influence of other (non-economic) factors.
Nonthermal effect of eletromagnitic radiation on biology is studied by using nonequilibrium statistics. On the bases of Wu and Austin's and I. TURCU'S work, trilinear hamiltonian is used as a simplified model of the Frohlich type. So, it is discussed and tested that certain frequ- ency electromagnetic wave at lower power produces several effect (freq- uency selectivity, threshold effect and coherent excitation). The concl- usion is in conformity with the experimental evidence.
In this paper, the experimental results of Alfven wave excitation in KT-5B Tokamak are presented. The results show that there is a quite broad excitation region for shear Alfven waves, the wave energy coupling indicated by the antenna loadings increase as the plasma current and toroidal magnetic field increase. The electron temperature threshold effects and the preliminary evidence of the surface electrostatic wave are observed.