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Creation Date 

1. Before 1958  (165,463)
2. 1958 To 1974  (273,815)
3. 1975 To 1991  (1,363,958)
4. 1992 To 2009  (8,668,076)
5. After 2009  (12,568,306)
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New Records 

1. New From Last Week  (3,039)
2. New From Last Month  (56,148)
3. New From Last 3 Month  (172,281)
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Resource Type 

1. Articles  (17,005,436)
2. magazinearticle  (2,706,176)
3. Patents  (1,896,154)
4. Book Chapters  (347,901)
5. Reviews  (334,191)
6. Newsletter Articles  (224,895)
7. Conference Proceedings  (213,235)
8. Reports  (73,973)
9. Books  (70,605)
10. Thesises (postgraduate)  (64,831)
11. Newspaper Articles  (43,575)
12. References  (9,786)
13. Web Resources  (5,038)
14. Images  (2,588)
15. Standards  (1,988)
16. Government Documents  (1,726)
17. Text Resources  (1,699)
18. Datasets  (1,520)
19. Other  (1,345)
20. Journals  (551)
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Subject 

1. Science & Technology  (9,153,881)
2. Life Sciences & Biomedicine  (3,866,345)
3. Technology  (3,805,348)
4. Physical Sciences  (2,915,922)
5. Engineering  (2,137,052)
6. Mechanical Engineering  (1,579,454)
7. Humans  (1,572,525)
8. Physics  (1,496,426)
9. Heating  (1,470,074)
10. Lighting  (1,453,234)
11. Chemistry  (1,442,493)
12. Weapons  (1,440,110)
13. Blasting  (1,432,013)
14. Exact Sciences And Technology  (1,269,007)
15. Materials Science  (1,218,991)
16. Animals  (1,090,228)
17. Science & Technology - Other Topics  (997,700)
18. Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [xracs] And Digests  (976,657)
19. General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc  (976,657)
20. General Tagging Of New Technological Developments  (976,657)
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Author/Creator 

1. Division on Engineering and Physical Sciences  (16)
2. National Research Council  (14)
3. Commission on Engineering and Technical Systems  (11)
4. National Research Council (U.S.)  (8)
5. National Materials Advisory Board  (4)
6. National Research Council Staff  (4)
7. National Research Council (U.S.). Committee on Review and Evaluation of Alternative Technologies for Demilitarization of Assembled Chemical Weapons: Phase II  (3)
8. Board on Army Science and Technology  (3)
9. Energy Engineering Board  (2)
10. National Academy of Engineering  (2)
11. Committee on Military and Intelligence Methodology for Emergent Neurophysiological and Cognitive/Neural Science Research in the Next Two Decades  (1)
12. Guile, Bruce R  (1)
13. Chemical Sciences Roundtable, National Research Council  (1)
14. National Research Council (U.S), Committee on Technologies for the Mining Industries  (1)
15. National Research Council (U.S.). Committee on Future Technologies for Army Multimedia Communications  (1)
16. Board on Earth Sciences and Resources  (1)
17. National Research Council (U.S.). Committee on Enabling Technologies for Unified Life-Cycle Engineering of Structural Components  (1)
18. National Research Council Committee on Review and Evaluation of Alternative Technologies for Demilitarization of Assembled Chemical Weapons  (1)
19. Committee on New Sensor Technologies: Materials and Applications, Commission on Engineering and Technical Systems, National Research Council  (1)
20. Buckley, Michael J  (1)
21. Committee on Military and Intelligence Methodology for Emergent Neruophysiological and Cognitive/Neural Research in the Next Two Decades  (1)
22. Committee on Nonconventional Concrete Technologies for Renewal of the Highway Infrastructure, Commission on Engineering and Technical Systems, National Research Council  (1)
23. National Research Council (U.S.). Committee on Review and Evaluation of Alternative Technologies for Demilitarization of Assembled Chemical Weapons  (1)
24. Division on Engineering and Physical Sciences Staff  (1)
25. Malgorzata Anna Komorowska; Sylwia Olsztynska-Janus  (1)
26. Committee on Earth Resources  (1)
27. Board on Energy and Environmental Systems  (1)
28. National Research Council (U.S.). Committee on Beam Technologies: Opportunities in Attaining Fully-Integrated Processing Systems  (1)
29. Board on Behavioral, Cognitive, and Sensory Sciences  (1)
30. National Research Council (U.S.). Committee on Advanced Space Based High Power Technologies  (1)
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Databases 

1. ProQuest Central  (15,206,181)
2. ROAD: Directory of Open Access Scholarly Resources  (5,324,326)
3. DOAJ Directory of Open Access Journals  (3,895,824)
4. MEDLINE  (2,964,312)
5. GFMER Free Medical Journals  (2,744,577)
6. Freely Accessible Journals  (2,646,281)
7. PubMed Central  (2,347,575)
8. arXiv.org  (1,866,659)
9. esp@cenet  (1,848,817)
10. HighWire Press (Free Journals)  (689,906)
11. Springer Nature OA/Free Journals  (575,689)
12. Wiley-Blackwell Open Access Titles  (415,029)
13. Public Library of Science (PLoS)  (342,498)
14. ProQuest One Psychology  (320,637)
15. IOP Publishing Free Content  (299,742)
16. Nature Open Access  (251,067)
17. IOPscience (Open Access)  (237,700)
18. Ebook Central - Academic Complete  (229,738)
19. Hyper Article en Ligne (HAL) (Open Access)  (228,609)
20. JSTOR Early Journal Content  (219,937)
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Language 

1. English  (22,827,651)
2. Japanese  (1,338,437)
3. Chinese  (356,913)
4. French  (319,469)
5. German  (233,053)
6. Korean  (71,042)
7. Portuguese  (64,390)
8. Russian  (57,622)
9. Spanish  (28,041)
10. Croatian  (21,352)
11. Polish  (7,820)
12. Norwegian  (7,680)
13. Czech  (6,262)
14. Ukrainian  (5,972)
15. Swedish  (5,727)
16. Italian  (5,587)
17. Slovenian  (4,212)
18. Persian  (3,922)
19. Danish  (3,738)
20. Dutch  (3,726)
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Journal Title 

1. Applied Mechanics And Materials  (98,870)
2. Arxiv  (606,388)
3. arXiv.org  (1,865,398)
4. Automotive News  (92,174)
5. Iop Conference Series. Materials Science And Engineering  (97,029)
6. Journal Of Physics: Conference Series  (87,954)
7. Journal Of Physics. Conference Series  (97,748)
8. Nature  (124,532)
9. Plos One  (300,749)
10. Proceedings Of The National Academy Of Sciences - Pnas  (117,448)
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