发文地区与机构
近年国家 / 地区发文量统计
| 国家 / 地区 | 发文量 |
|---|---|
| Japan | 120 |
| South Korea | 7 |
| Spain | 4 |
| CHINA MAINLAND | 2 |
| England | 2 |
| GERMANY (FED REP GER) | 2 |
| USA | 2 |
| Canada | 1 |
| Czech Republic | 1 |
| Italy | 1 |
近年机构发文量统计
| 机构 | 发文量 |
|---|---|
| TOHOKU UNIVERSITY | 12 |
| UNIVERSITY OF TOKYO | 10 |
| KYOTO UNIVERSITY | 9 |
| CHIBA UNIVERSITY | 8 |
| HOSEI UNIVERSITY | 8 |
| TOKYO UNIVERSITY OF SCIENCE | 8 |
| OSAKA UNIVERSITY | 7 |
| YAMAGATA UNIVERSITY | 6 |
| HIROSHIMA CITY UNIV | 5 |
| HOKKAIDO UNIVERSITY | 5 |