The air qualities around seven plant communities belong to B level (clean air) , 16 communities to C level (moderate clean air) and 4 communities to D level (allowable clean air) , while the air quality of the control is at E level (unclean air).
Production medium was optimized for antibiotic production.
We consider a nonlinear parabolic system describing compressible miscible displacement in a porous medium .
The objective of this paper is to deal with a kind of fuzzy linear programming problem based on interval-valued fuzzy sets (IVFLP) through the medium of procedure that turns IVFLP into parametric linear programming via the mathematical programming.
The conclusion that the equilibrium is the continuous function of the dilution rate and substrate concentration in medium in a certain range is concluded.
Many food algae and red tide algae were cultivated in the f/2 medium, and the nitric oxide (NO) concentration of the medium and the cell density were determined.
But several characteristics exhibited high differentiation level, such as width of the tooth of leaf base (25.99%) and the middle apical bud (25.23%).
However, only two morphological indices, the middle apical bud and the tooth of leaf base, are unstable, which indicates the extensive influence of environmental factors.
Sap flow velocity at the upper position of the trunk is higher than that of the middle and lower position, but cumulative flux is not significantly different among the upper, middle and lower sections.
Results showed that the biomass of fine roots (? 1 mm) in different layers varied in the following descending order: upper layer, middle layer and lower layer, at approximate ratios of 50:30:20.
Yunmeng belongs to the middle type, between the warm and dry northern mountain area and the warm and damp southern mountain area.