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Masayoshi Hayashi 한국재정학회(구 한국재정·공공경제학회) 2008 한국재정학회 학술대회 논문집 Vol.2008 No.1
Local governments in Japan are partially funded by the central government to implement public assistance for the needy in theirjurisdictions. This paper exploits the institutional interplay of the Japanese intergovernmental transfers to identify the effects of centralfunding on the locally implemented social programs. The institutional features also enable us to frame the effect in terms of the average treatment effect, possibly taking advantage of the sharp regression discontinuity design. Our results indicate that local governments on average respond to an increase in the central funding by protecting more of ther residents. This does not contradict to the traditional view of the Japanese government that more of central funding increases unnecessaryexpenditures for public assistance by local governments. However, such an increase does not have to be unnecessary. Given a low take-up rate in the country, our results rather indicate that central funding can be an effective policy instrument to protect more of the needy.
Research on the Amount of Empty Containers in Japanese Main Ports
Masayoshi,KUBO,Wenhui,ZHANG 한국항해항만학회 2004 한국항해항만학회 학술대회논문집 Vol.5 No.-
Economic development is remarkable in Asia and progress of industrialization of NIES, ASEAN, and China in East Asia has increased the international physical distribution in this area. However, an imbalance of trade becomes severe in these areas. The imbalance is especially big in the Asia-North America route and the Japan-China route. The imbalance in the Asia -North America liner route is 5.04 million TEUS in 2002. The transportation ratio of loaded containers between China and Japan route is approximately 3:1 in 2000. In other words, it means that the transportation of loaded containers from China to Japan is 3, the transportation of loaded containers from Japan to China is I. The imbalance at a port is generally obtained by subtracting export loaded container cargo volume from import container cargo volume. However, the imbalance and the empty containers at the port are not always same. Then, in order to evaluate rationalization and efficiency of maritime container transportation, we introduce the amount of empty containers at a port as an evaluation index. However, the past data of the amount of handling empty containers have a lot of lacking portions. Then, it is necessary to estimate the past amount of empty containers in order to grasp the amount of empty containers historically. So, we construct the mode that estimates the amount of empty containers using the imbalance of main port statistics in Japan.
Masayoshi Seike,Tetsuya Fukushima,Kazunori Sato,Hiroshi Katayama-Yoshida 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
We present a materials design of MgO-based d0 ferromagnets with a high blocking temperature(TB) based on multiscale simulations. The chemical pair interactions between the N atoms inMg(O,N) and the Mg vacancies (VMg) in (Mg,VMg)O were calculated using a generalized gradientapproximation, and Monte Carlo simulations of the crystal growth were performed to predictthe configurations of the dopant distribution. Our simulations showed that self-organized nanostructurescould be formed both in Mg(O,N) and (Mg,VMg)O, which suggests that a high TB canbe obtained in these d0 ferromagnets due to the superparamagnetic blocking phenomenon. Furthermore,depending on the crystal growth conditions, it was shown that various self-organizednanostructures, such as three-dimensional nanoclusters and one-dimensional nanowires, could appear.
Masayoshi Nakamura,Keijiro Nakasa,Yudai Kitamika,Sande Gao,Tsunetaka Sumomogi 한국정밀공학회 2021 International Journal of Precision Engineering and Vol.22 No.4
Argon ion sputter etching of AISI type 420 stainless steels was carried out at a power of 250 W for 14.4 ks to form coneshaped protrusions with bottom diameters of 10–20 μm by using a radio-frequency magnetron sputter apparatus. The sputter etching was also applied to AISI type 316 stainless steel at 250 W for 10.8 ks, and fi ne column-shaped protrusions with diameters smaller than 500 nm were formed. In addition, plasma-nitriding was applied to the protrusions of type 420 steel using nitrogen gas of 0.53 Pa mixed with argon gas of 0.67 Pa at a power of 50 W for 1.8 ks. The gripping ability of protrusions was measured by friction tests for three types of fiber sheets. For a cotton cloth, the friction coefficients of the as-sputter-etched and plasma-nitrided type 420 steel specimens were 1.3 and 1.7 at a nominal compressive stress of 0.8 kPa, and that of the as-sputter-etched type 316 steel specimen was 1.0. These are much larger than 0.8 and 0.5 of the specimens polished with #100 emery paper and buff -polished with alumina powders. Also for microfiber and polyester fiber sheets, the specimen with protrusions showed a higher gripping ability than those of the mechanically polished specimens. The reason for the large gripping ability of protrusion specimens is due to piercing of the protrusions between and into weaving yarns.