Photosynthetic reactions of whole leaves and isolated chloroplasts from various mutants of Nicotiana tabacum have been correlated to the lamellar structure seen in electron micrographs of the chloroplasts. In this way it could be established that a fully active photosystem I can be associated with single unfolded thylakoids. The complete photosynthetic electron transport system including the ox...

In this paper, we consider a multi-server queuing system in which additional servers are allowed for a longer queue to reduce the customer’s balking and reneging behavior. The customers are assumed to arrive in Poisson fashion and their service- times follow exponential distribution. The number of servers in long run depends on the queue-length. We obtain equilibrium queue size distribution. Th...

Por sua alta eficiência fotossintética e conversão em biomassa, o bambu tem gran- de potencial para a produção carvão uso agrícola (biocarvão). Este trabalho comparou os carvões produzidos diferentes temperaturas pirólise partir do colmo duas espécies larga ocorrência no sul país: Phyllostachys aurea (uma espécie exótica) Guadua sp. (na- tiva Brasil). Os resultados mostraram diferenças entre as...