Comparative Study on "SOREKARA" of Natsume Souseki and "JAE-SAENG" of Lee Kwang-Su : Focusing on 'Civilization'

There are lots of comparative studies of Natsume Souseki and Luxun in Japan. At the same time in Korea, comparative studies of Lee Kwang-Su and Luxun are made frequently. But it's difficult to find a comparative study of Natsume Souseki and Lee Kwang-Su in Korea or Japan. In spite of the differences in modernization progress in their countries, being Japan, Korea and China, respectively, Natsume Souseki, Lee Kwang-Su and Luxun, have many common features at that time. They are all representative writers who were afflicted in their modern ages. For that reason, a comparative study between Natsume Souseki and Lee Kwang-Su is essential. Therefore this study pays attention to the progress of 'civilization' in the two countries, Japan and Korea, through"SOREKARA" (a sequel of "SANSHIROU") by Natsume Souseki, and "JAE-SAENG" (a sequel of "MU-JEONG") by Lee Kwang-su

Growth of superconducting MgB2 thin films via postannealing techniques

We report the effect of annealing on the superconductivity of MgB2 thin films as functions of the postannealing temperature in the range from 700 C to 950 C and of the postannealing time in the range from 30 min to 120 min. On annealing at 900 C for 30 min, we obtained the best-quality MgB2 films with a transition temperature of 39 K and a critical current density of ~ 10^7 A/cm^2. Using the scanning electron microscopy, we also investigated the film growth mechanism. The samples annealed at higher temperatures showed the larger grain sizes, well-aligned crystal structures with preferential orientations along the c-axis, and smooth surface morphologies. However, a longer annealing time prevented the alignment of grains and reduced the superconductivity, indicating a strong interfacial reaction between the substrate and the MgB2 film.Comment: 7 pages, 4 figures include