Based on the characteristics that indirect illumination distribution is in all directions and lack of variation with the change of its orientation,this paper uses an array of lights to calculate their direct illumination which is accelerated with GPU hardware implementation,and achieves rapid global illumination simulation.

The author tries to work out the cognitive inferential mechanisms of indirect anaphora in the light of Accessibility Theory put forth by Ariel (1990) and Givenness Hierarchy proposed by Gundel et al(1993).

A special way of antithesis, indirect antithesis, has some sameness with antithesis in its general sense, but also some differences.

Effects of Light Spectrum and Photoperiod on Contents of Flavonoid and Terpene in Leaves of Ginkgo biloba L.;

Influence of photoperiod on the reproduction quantity of D.melanogaster;

Influence of Photoperiod on Facultative Apomixis in Apluda mutica;

Effects of light duration on flexural strength of self-manufactured light-cure dental glass-fiber-reinforced-composite post

In order to determine the impacts of increasing temperature and prolonging light duration on physioecological characteristics and growth of tea(Camellia sinensis)cuttings,two temperature treatments(the lowest temperature in a day was not lower than 0℃ and 10℃)and three treatments of light duration(10,13,16 h)were designed to study the photosynthesis and growth of tea cuttings.

) under different light duration.