Optimized model is compared with original model and the surface growth effect is described qualitatively.

将优化后的模型与原模型进行了对比，同时定性分析了表面生长效应。

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He said the darkening of the Martian surface during some times of the year was caused by the growth of plants.

VOA: special.2010.07.11

"When we brought the photographs to the surface we found all this growth on them -- it's a third dimension on top, " Franke said.

CNN: March 11, 2013 -- Updated 1910 GMT (0310 HKT)

The firm was founded in the early 1990s by several academic researchers, including Axel Ullrichof Germany's Max Planck Institute for Biochemistry, who had been studying receptors on the surface of cells that receive growth signals from other parts of the body.

FORBES: Targeting Tumors

Fourth-quarter earnings season has officially started, and, on the surface, analysts are projecting strong growth.

FORBES: What's Driving Earnings Higher?