It is found that the segmentation method based on measurement of the distance between segments achieves good performance.

Comparison on five methods for extraction of RNA from Echinococcus multilocularis metacestode Larva and Studies on amplification of DNA long fragments with RT PCR;

Betaine Improves LA-PCR Amplification;

The influences of sample thickness on the anisotropy effect of interface energy and the adjustment mechanism of lamellar spacing in the initial transient of eutectic solidification were investigated.

The effect of cooling rate on eutectic crystallization undercooling,eutectic lamellar spacing and size of eutectic colony was studied and analyzed with theory.

It is important to control the lamellar spacing of fully la mellar TiAl alloy for improving its mechanical properties.

By multiphase field model method,the unidirectional solidification of eutectic alloy CBr_4-C_2Cl_6 is simulated,and the adjustment of lamellar spacing and morphology evolution have been investigated under three schemes of variable pulling speed, i.

The results show that small Cr addition in steel can decrease the lamellar spacing of pearlite, and markedly increase strength and hardness with almost the same ductility and toughness, and accordingly improve wear and shelling-resistance of wheel steel.

Furthermore, the relation between lamellar spacing and growth velocity corresponds to λv 1/2 =(216±42)μ m 3/2 ·s -1/2 where the constant is larger than other eutectic systems.