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Creation Date 

1. Before 1960  (810)
2. 1960 To 1975  (7,663)
3. 1976 To 1991  (39,886)
4. 1992 To 2008  (91,111)
5. After 2008  (226,126)
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New Records 

1. New From Last Month  (8,828)
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Resource Type 

1. Patents  (365,575)
2. Articles  (65)
3. magazinearticle  (14)
4. Conference Proceedings  (2)
5. Datasets  (2)
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Subject 

1. Performing Operations  (365,575)
2. Physics  (82,785)
3. Vehicles In General  (66,808)
4. Conveying  (62,770)
5. Handling Thin Or Filamentary Material  (62,769)
6. Storing  (62,769)
7. Packing  (62,769)
8. Machine Tools  (47,426)
9. Metal-Working Not Otherwise Provided For  (47,426)
10. Electricity  (35,187)
11. Testing  (32,681)
12. Measuring  (32,680)
13. Calculating  (29,022)
14. Computing  (29,022)
15. Counting  (29,022)
16. Mechanical Engineering  (27,737)
17. Lighting  (27,736)
18. Blasting  (27,736)
19. Heating  (27,736)
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Databases 

1. esp@cenet  (365,575)
2. ProQuest Central  (65)
3. DOAJ Directory of Open Access Journals  (17)
4. ROAD: Directory of Open Access Scholarly Resources  (12)
5. GFMER Free Medical Journals  (7)
6. PubMed Central  (5)
7. Wiley-Blackwell Open Access Titles  (5)
8. MEDLINE  (5)
9. Wiley-Blackwell AGU Digital Library  (4)
10. IOP Publishing Free Content  (3)
11. Freely Accessible Journals  (2)
12. Springer Nature OA/Free Journals  (2)
13. Hyper Article en Ligne (HAL) (Open Access)  (2)
14. Lunaris – Canada’s National Data Discovery Service  (2)
15. EDP Open  (1)
16. Cambridge Wholly Gold Open Access Journals  (1)
17. SciELO  (1)
18. De Gruyter Open Access Journals  (1)
19. Cell Press Free Archives  (1)
20. SAGE Open Access Journals  (1)
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Language 

1. English  (323,302)
2. Chinese  (77,780)
3. French  (68,656)
4. German  (47,388)
5. Korean  (17,583)
6. Japanese  (12,420)
7. Spanish  (5,792)
8. Russian  (3,206)
9. Portuguese  (2,946)
10. Italian  (2,249)
11. Swedish  (1,853)
12. Danish  (1,296)
13. Finnish  (1,282)
14. Norwegian  (1,263)
15. Dutch  (1,064)
16. Polish  (652)
17. Ukrainian  (244)
18. Czech  (205)
19. Hungarian  (165)
20. Hebrew  (125)
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Journal Title 

1. Engineering And Mining Journal  (2)
2. Geophysical Research Letters  (3)
3. Glass And Ceramics  (2)
4. Journal Of Coastal Research  (2)
5. Journal Of Physics: Conference Series  (2)
6. Journal Of Physics. Conference Series  (2)
7. Mathematical Problems In Engineering  (2)
8. Or Spectrum  (3)
9. Pipeline & Gas Journal  (5)
10. Refractories And Industrial Ceramics  (2)
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