Western Region Of Inner Mongolia Research Articles

Research on Anti-Erosion Mechanical Properties of Steel Structure Coating

Steel structures are seriously affected by sandstorm in the central and western regions of Inner Mongolia, this influence is mainly reflected erosion damage to the steel structure coating by sandstorm. As the coating has critical protection role to the durability of steel structure, the damage of coating will directly lead to reduce durability and safety of steel structure system. This paper researches on the anti-erosion mechanical properties of steel structure coating materials, and measures hardness, modulus , thickness and density of the coating by use of micron-indenter and traditional methods, the result shows that hardness is 2.1516MPa, modulus is 15.62MPa, thickness distribution is in the 800um ~ 1000um and density is 1.71g/cm3. This research result will provide the basis for preparation of anti-erosion coating and evaluation safety and durability of steel structures.

Phenotypic and genotypic characteristics of lactic acid bacteria isolated from sour congee in Inner Mongolia of China

Sour congee is a popular food in the western regions of Inner Mongolia in China. It has a complex microbial population, which contributes to its unique flavor and functional properties. In this study, we chose 28 sour congee samples that were collected from different areas in Inner Mongolia for analysis of the microbial community of lactic acid bacteria (LAB) by classical biochemical tests, 16S rRNA gene sequencing, multiplex PCR assay of recA gene and restriction fragment length polymorphism (RFLP) analysis of the tuf gene (encoding elongation factor Tu). The results revealed that all the isolates were identified as Lactobacillus (L.) paracasei (38 strains), L. fermentum (28 strains), L. plantarum (7 strains), L. brevis (4 strains), L. reuteri (2 strains), L. amylolyticus (1 strain), Enterococcus (E.) faecalis (3 strains), E. italicus (2 strains) or Lactococcus lactis subsp. lactis (1 strain). The predominant LAB were L. casei and L. fermentum in sour congee samples. The diversity of LAB derived from sour congee could offer useful information for further research on sour congee, and the results demonstrated that the combination of tuf gene and RFLP patterns can be considered as a useful tool for differentiation of the L. casei group.

Cashmere production and environment problems of grasslands in the western region of Inner Mongolia, China

Cashmere production and environment problems of grasslands in the western region of Inner Mongolia, China