The colonist culture of the imperialism nourished Jim＇s heroic dreams in which the protagonist sees himself as an apotheosis of morality and heroic deeds, but it also isolated him from the reality of the world. As a ...The colonist culture of the imperialism nourished Jim＇s heroic dreams in which the protagonist sees himself as an apotheosis of morality and heroic deeds, but it also isolated him from the reality of the world. As a result, he often finds himself caught in moral dilemmas and ends up making tragic choices. His tragedy indicated that the alluring and illusive myth of the imperialism was bound to fall apart.展开更多
The present thesis takes Joseph Conrad＇s best-known novel, Lord Jim as a text of analysis to explore its themes that are the ambiguous nature of good and evil, the importance and fragility of ideals, the isolation of...The present thesis takes Joseph Conrad＇s best-known novel, Lord Jim as a text of analysis to explore its themes that are the ambiguous nature of good and evil, the importance and fragility of ideals, the isolation of the individual, and the threat of disaster and failure that looms behind the calm surface of every day. It focuses on the psychological process of the protagonist, Jim, by employing Freud＇s psychoanalysis to solve the puzzle surrounding Jim.展开更多
The hexagonal to orthorhombic(HO)transformation fromβ-Ni_(3)Sn_(2)(hexagonal)phase toα'-Ni_(3)Sn_(2)(orthorhombic)phase was confirmed in directionally solidified Sn−Ni peritectic alloys.It is shown that the reme...The hexagonal to orthorhombic(HO)transformation fromβ-Ni_(3)Sn_(2)(hexagonal)phase toα'-Ni_(3)Sn_(2)(orthorhombic)phase was confirmed in directionally solidified Sn−Ni peritectic alloys.It is shown that the remelting/resolidification process which is caused by both the temperature gradient zone melting(TGZM)and Gibbs−Thomson(G−T)effects can take place on secondary dendrites.Besides,the intersection angle between the primary dendrite stem and secondary branch(θ)is found to increase fromπ/3 toπ/2 as the solidification proceeds.This is the morphological feature of the HO transformation,which can change the diffusion distance of the remelting/resolidification process.Thus,a diffusion-based analytical model is established to describe this process through the specific surface area(S_(V))of dendrites.The theoretical prediction demonstrates that the remelting/resolidification process is restricted when the HO transformation occurs during peritectic solidification.In addition,the slope of the prediction curves is changed,indicating the variation of the local remelting/resolidification rates.展开更多
文摘The colonist culture of the imperialism nourished Jim＇s heroic dreams in which the protagonist sees himself as an apotheosis of morality and heroic deeds, but it also isolated him from the reality of the world. As a result, he often finds himself caught in moral dilemmas and ends up making tragic choices. His tragedy indicated that the alluring and illusive myth of the imperialism was bound to fall apart.
文摘The present thesis takes Joseph Conrad＇s best-known novel, Lord Jim as a text of analysis to explore its themes that are the ambiguous nature of good and evil, the importance and fragility of ideals, the isolation of the individual, and the threat of disaster and failure that looms behind the calm surface of every day. It focuses on the psychological process of the protagonist, Jim, by employing Freud＇s psychoanalysis to solve the puzzle surrounding Jim.
基金the support from the Natural Science Foundation of China(No.51871118)Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University,China(No.LZUMMM2021005)+1 种基金the Science and Technology Project of Lanzhou City,China(No.2019-1-30)State Key Laboratory of Special Rare Metal Materials,China(No.SKL2020K003)。
文摘The hexagonal to orthorhombic(HO)transformation fromβ-Ni_(3)Sn_(2)(hexagonal)phase toα'-Ni_(3)Sn_(2)(orthorhombic)phase was confirmed in directionally solidified Sn−Ni peritectic alloys.It is shown that the remelting/resolidification process which is caused by both the temperature gradient zone melting(TGZM)and Gibbs−Thomson(G−T)effects can take place on secondary dendrites.Besides,the intersection angle between the primary dendrite stem and secondary branch(θ)is found to increase fromπ/3 toπ/2 as the solidification proceeds.This is the morphological feature of the HO transformation,which can change the diffusion distance of the remelting/resolidification process.Thus,a diffusion-based analytical model is established to describe this process through the specific surface area(S_(V))of dendrites.The theoretical prediction demonstrates that the remelting/resolidification process is restricted when the HO transformation occurs during peritectic solidification.In addition,the slope of the prediction curves is changed,indicating the variation of the local remelting/resolidification rates.
