Char derived from rapid pyrolysis of rice straw and chinar leaves almost remained the original structures . Serious melting happened to the pine sawdust , and resulted in the destruction of the pore structures and low reactivity .
Studied L-system ’ s basic theory . Summarized and abstracted experience of chinar tree growth process . Initiated states and rules , generated sequences of characters with iterative method , a string geometric explanation was carried out , and then the chinar tree ’ s growth process was simulated .
