Real space method for HAADF image simulation.

A new real space HAADF simulation method was described in detail and a Real Space- STEM software was developed based on the new simulation method. The algorithm of the real space method can quickly calculate and simulate the microstructure images of complex crystals. The Real Space-STEM software developed in this paper has the functions of HRTEM and HAADF image simulation based on the real space method.

Effects of Electron Microscope Parameters and Sample Thickness on High Angle Annular Dark Field Imaging.

Scanning transmission electron microscopy (STEM) developed into a very important characterization tool for atomic analysis of crystalline specimens. High-angle annular dark field (HAADF) scanning transmission electron microscopy (STEM) has become one of the most powerful tools to visualize material structures at atomic resolution. However, the parameter of electron microscope and sample thickness is the important influence factors on HAADF-STEM imaging.

Cloning and expression of fumarylacetoacetate hydrolase derived from marine yeast Rhodosporidium diobovatum.

Fumarylacetoacetate hydrolase (FAH) catalyzes the hydrolytic cleavage of a carbon-carbon bond in fumarylacetoacetate to yield acetoacetate and fumarate as the final step in tyrosine degradation. In this study, the FAH genomic DNA and cDNA of Rhodosporidium. diobovatum were cloned by using the methods of degenerate polymerase chain reaction and RACE method.