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 |
|---|---|
| CHINA MAINLAND | 135 |
| Iran | 77 |
| USA | 25 |
| Pakistan | 15 |
| India | 13 |
| Turkey | 11 |
| Egypt | 10 |
| Tunisia | 10 |
| GERMANY (FED REP GER) | 7 |
| Malaysia | 7 |
近年机构发文量统计
| 机构 | 发文量 |
|---|---|
| CHINA NATIONAL PETROLEUM CORPORATION | 29 |
| ISLAMIC AZAD UNIVERSITY | 24 |
| SHANDONG UNIVERSITY OF SCIENCE & TECHNO... | 24 |
| CHINA UNIVERSITY OF PETROLEUM | 21 |
| CHINESE ACADEMY OF GEOLOGICAL SCIENCES | 21 |
| CHINA UNIVERSITY OF GEOSCIENCES | 20 |
| CHINESE ACADEMY OF SCIENCES | 17 |
| SINOPEC | 16 |
| CHENGDU UNIVERSITY OF TECHNOLOGY | 12 |
| UNIVERSITY OF TEHRAN | 12 |