国家/地区发文分析
国家/地区发文量
| 国家/地区 | 数量 |
|---|---|
| USA | 7407 |
| GERMANY (FED REP GER) | 871 |
| England | 629 |
| Canada | 493 |
| Japan | 418 |
| France | 356 |
| CHINA MAINLAND | 354 |
| Italy | 242 |
| India | 224 |
| Netherlands | 182 |
机构发文量
| 机构 | 数量 |
|---|---|
| UNIVERSITY OF CALIFORNIA SYSTEM | 974 |
| UNIVERSITY OF ILLINOIS SYSTEM | 255 |
| UNIVERSITY OF TEXAS SYSTEM | 248 |
| JOHNS HOPKINS UNIVERSITY | 229 |
| STANFORD UNIVERSITY | 229 |
| UNITED STATES DEPARTMENT OF ENERGY (DOE) | 227 |
| MAX PLANCK SOCIETY | 198 |
| PENNSYLVANIA COMMONWEALTH SYSTEM OF HIGHER EDUCATION (PCSHE) | 194 |
| UNIVERSITY SYSTEM OF MARYLAND | 194 |
| STATE UNIVERSITY SYSTEM OF FLORIDA | 183 |