With the classical generalized harmonic oscillator as an example, we show that the analogues of the quantum Berry's phase can appear in the classical mechanic systems with adiabatically-changing parameters, which have the Schrödinger-type evolution equations. The corresponding guage structures are naturally induced in these systems.

We have studied the production of baryon in decays of the upsilon resonance by a simple gluon splitting assumption. The calculated results show that the production rate of baryons is enhanced in direct upsilon decay compared to continuum, and the prediction agrees well with experiments.

Intense stimulated radiations at 547.7, 548.1, 548.7, 622.05, 622.1, and 621.5nm were observed wing UV laser pump in the region from 263.1 to 264.7nm. The stimulated lines from the excited states e³Fe_{2, 3, 4} were produced by the further excitation of Ti atoms formed in photolysis of Tic1₄ in gas phase. Stimulated Raman scattering of Ti atoms was also observed.

An experimental study of the effect of ZnO doped sodium silicate thin film, used as a semiconductive preionizer on the output energy is presented. The output energy of the nitrogen laser increased by two folds. The performance of the preionizer can be controlled to match the discharge requirements.

The way to find the eigenfield of a negative unstable cavity filled with a radial variable and self-adjustable gain medium is suggested. The calculated results based on this method fit the experimental data of the Ne 633nm laser satisfactorily.

The expression of non-propagating solitary waves within the fluid in a rectangular trough has been obtained using the method of multiple scales, from which we can understand the picture of motion everywhere in fluid.

Lattice dynamics of ³⁶Ar are investigated by Keating model. Owing to the short-range character of the interactions in rare-gas solids, only the nearest neighbour interactions were taken into account. The calculated phonon frequencies and elastic constants are in good agreement with the experimental values. The maximum error for phonon frenquencies is 3.3% and for the elastic constants is 7%.

The growth striation, the resistant homogeneity, and the oxygen concentration of silicon single crystal grown by both Transverse Magnetic Czochralski (MCZ) and Czochralski growth methods (CZ) were investigated. The oxygen concentration in MCZ silicon is more uniform and controllable. It is concluded that the Magnetic Czochralski method is an effective method to improve the quality of silicon single crystal.

Some peaks have been observed in plot of conductivity versus temperature for amorphous ionic conductor in Li₂O-SiO₂-V₂O₅ system. It has been shown from X-ray and DTA data that the amorphous ionic conductors crystallize in steps. Every conductivity peak or conductivity enhancement was caused by a crystallization step.

The measurements of current-voltage characteristic at various temperatures and applied fields have shown that resistanceless currents persist at fields up to 8T before flux flow resistance is detected for polycrystalline Tl₂ Ba₂ Ca₂ Cu₃ O₁₀ (TBCCO) superconductor with high density. Significant improvement of the grainboundary properties and possibility of high ability of transport current have also been explored. The microstructure examination and magnetization measurements support strongly these results.

We propose a model for calculating the magnetic susceptibility of classical Heisenberg chains, showing nearest neighbor correlated cationic distributions. The result formally looks like expressions obtained for random chains where the neighboring cationic species are not correlated. In the present result the intervening scalar parameters are replaced, by vector and matricial expressions.

The magnetization curves at 1.5K and thermomagnetization curves in the fields of about 450e for amorphous Fe_90-xSi_xZr₁₀ (x=0, 4, 7 and 10) alloys prepared by the drum spinning technique are measured with an eztracting sample magnetometer. At low Si concentration the amorphous Fe_90-xSi_xZr₁₀ alloys exhibit a large value of the high-field susceptibility, but the average magnetic moment per Fe atom μFe, and the Curie temperature, T_c, are quite small, compared with amorphous Fe_87-xSi_xB₁₃ alloys. This unusual behavior could be explained in terms of the presence of the antiferromagnetic state.

Tb-doped SBN crystals were prepared by the Czochralski technique. Their dielectric, ferroelectric, and pyroelectric properties were studied. A low temperature phase transition between two polar phases was revealed by the anomalies of the dielectric and pyroelectric properties; the polar axis changes its direction during this transition. The point group of the low temperature phase may be mm2, m or 1.