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資源種類 

1. 期刊文獻  (25,926,999)
2. magazinearticle  (477,696)
3. 圖書章節  (459,167)
4. 會議論文  (411,102)
5. 評論  (132,878)
6. 電子書  (50,728)
7. 電子報文章  (7,903)
8. 報告  (3,947)
9. 報紙文章  (1,205)
10. 網路資源  (777)
11. 文獻資源  (484)
12. 參考詞條  (383)
13. 多個資料集  (66)
14. 論文  (13)
15. 其他  (8)
16. 政府出版品  (5)
17. 地圖  (2)
18. 更多選項 

主題 

1. Science & Technology  (26,049,653)
2. Life Sciences & Biomedicine  (14,366,800)
3. Technology  (7,991,310)
4. Physical Sciences  (7,187,116)
5. Humans  (6,089,184)
6. Engineering  (3,959,363)
7. Female  (3,076,404)
8. Male  (2,975,465)
9. Chemistry  (2,717,561)
10. Animals  (2,533,899)
11. Physics  (2,334,554)
12. Exact Sciences And Technology  (2,315,011)
13. Biological And Medical Sciences  (2,159,734)
14. Materials Science  (2,052,251)
15. Computer Science  (1,681,472)
16. Adult  (1,664,298)
17. Environmental Sciences & Ecology  (1,568,616)
18. Biochemistry & Molecular Biology  (1,548,958)
19. Science & Technology - Other Topics  (1,527,016)
20. Middle Aged  (1,518,606)
21. 更多選項 

建立日期 

1. 之前1959  (37,443)
2. 1959到1974  (109,232)
3. 1975到1990  (351,849)
4. 1991到2007  (6,311,591)
5. 之後 2007  (20,747,110)
6. 更多選項 

來源 

1. Elsevier ScienceDirect Journals Complete  (8,495,065)
2. DOAJ Directory of Open Access Journals  (7,290,397)
3. IngentaConnect Journals  (6,106,355)
4. Publicly Available Content Database  (4,349,702)
5. Wiley Online Library All Journals  (4,018,007)
6. SpringerLink Journals - AutoHoldings  (3,934,908)
7. Academic Search Premier  (3,882,140)
8. Wiley Online Library Full Collection 2020  (3,397,578)
9. Agricultural & Environmental Science Collection  (2,551,299)
10. Wiley-Blackwell Open Access Titles  (1,320,757)
11. Taylor & Francis:Master (3349 titles)  (1,272,172)
12. OmniFile Full Text Select (H.W. Wilson)  (1,144,859)
13. IEEE Electronic Library (IEL) Journals  (1,138,159)
14. Taylor & Francis Social Science & Humanities and Science & Technology Library Database Model  (1,004,415)
15. Business Source Complete  (915,424)
16. Healthcare Administration Database  (534,474)
17. Springer Books  (463,399)
18. Education Database  (382,171)
19. Education Collection  (366,800)
20. Coronavirus Research Database  (258,950)
21. 更多選項 

語言 

1. 英文  (27,303,701)
2. 日文  (2,756,507)
3. 葡文  (187,998)
4. 中文  (105,254)
5. 法文  (72,033)
6. 西班牙文  (61,619)
7. 德文  (61,488)
8. 俄文  (33,743)
9. 挪威文  (13,897)
10. 土耳其文  (10,504)
11. 波蘭文  (9,808)
12. 意大利文  (6,547)
13. 捷克文  (5,423)
14. 斯洛伐克文  (3,488)
15. 韓文  (3,374)
16. 克羅地亞文  (2,964)
17. 荷蘭文  (2,959)
18. 波斯文  (2,804)
19. 烏克蘭文  (2,217)
20. 阿拉伯文  (2,104)
21. 更多選項 

期刊題名 

1. Ieee Access  (76,398)
2. International Journal Of Molecular Sciences  (79,451)
3. Journal Of Alloys And Compounds  (65,329)
4. Journal Of Physics: Conference Series  (73,858)
5. Journal Of Physics. Conference Series  (76,217)
6. Nature  (76,588)
7. Plos One  (275,897)
8. Scientific Reports  (189,360)
9. Sustainability  (76,916)
10. The Journal Of Biological Chemistry  (161,375)
11. 更多選項