With the forms of pistil stigma of " Guiti 2" Chinese water chestnut cultivar during the pollination as the object of observation,we reveal the pollination process of Chinese water chestnut from the microsco...With the forms of pistil stigma of " Guiti 2" Chinese water chestnut cultivar during the pollination as the object of observation,we reveal the pollination process of Chinese water chestnut from the microscopic point of view,to provide reference for Chinese water chestnut crossbreeding. The results show that the Chinese water chestnut pistil has 2- 4 stigmas which present white filament and vascular bundle forms,and the vessels on epidermis are thick with long translucent branched hairs; after pollination,pollen grains are tightly bound on branched hairs,and after identification,the pollen tube can penetrate branched hairs,continue to grow,and transfer the genetic material in pollen to vascular bundle.展开更多
In this paper,the research on the teaching method of children’s image cognition based on AR technology is carried out.By analyzing the principle ofARtechnology to recognize images,we understand thatARtechnology can p...In this paper,the research on the teaching method of children’s image cognition based on AR technology is carried out.By analyzing the principle ofARtechnology to recognize images,we understand thatARtechnology can promote children’s image cognition,and this teaching method is in line with the Tower of Experience theory.It further analyzes the current situation of children’s image cognition teaching with simple teaching methods,backward AR teaching tools,and poor perception of teaching objects.Teachers’traditional image teaching methods cannot effectively and efficiently improve children’s image cognition.Therefore,based on AR technology,two commonly used image cognition teaching methods are proposed:AR interactive picture book education andARinteractive game education.Both of these educational methods can improve children’s ability to recognize images.展开更多
文摘With the forms of pistil stigma of " Guiti 2" Chinese water chestnut cultivar during the pollination as the object of observation,we reveal the pollination process of Chinese water chestnut from the microscopic point of view,to provide reference for Chinese water chestnut crossbreeding. The results show that the Chinese water chestnut pistil has 2- 4 stigmas which present white filament and vascular bundle forms,and the vessels on epidermis are thick with long translucent branched hairs; after pollination,pollen grains are tightly bound on branched hairs,and after identification,the pollen tube can penetrate branched hairs,continue to grow,and transfer the genetic material in pollen to vascular bundle.
文摘In this paper,the research on the teaching method of children’s image cognition based on AR technology is carried out.By analyzing the principle ofARtechnology to recognize images,we understand thatARtechnology can promote children’s image cognition,and this teaching method is in line with the Tower of Experience theory.It further analyzes the current situation of children’s image cognition teaching with simple teaching methods,backward AR teaching tools,and poor perception of teaching objects.Teachers’traditional image teaching methods cannot effectively and efficiently improve children’s image cognition.Therefore,based on AR technology,two commonly used image cognition teaching methods are proposed:AR interactive picture book education andARinteractive game education.Both of these educational methods can improve children’s ability to recognize images.
