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Creation Date 

1. Before 1960  (186,851)
2. 1960 To 1975  (328,852)
3. 1976 To 1991  (1,260,349)
4. 1992 To 2008  (2,329,683)
5. After 2008  (6,117,647)
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New Records 

1. New From Last Week  (16,925)
2. New From Last Month  (400,045)
3. New From Last 3 Month  (400,048)
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Resource Type 

1. Patents  (10,246,966)
2. Articles  (448)
3. magazinearticle  (96)
4. Conference Proceedings  (26)
5. Books  (13)
6. Thesises (postgraduate)  (7)
7. Newsletter Articles  (5)
8. Book Chapters  (3)
9. Reports  (2)
10. Government Documents  (1)
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Subject 

1. Physics  (10,247,021)
2. Measuring  (10,246,976)
3. Investigating Or Analysing Materials By Determining Theirchemical Or Physical Properties  (3,949,506)
4. Measuring Magnetic Variables  (1,479,438)
5. Measuring Electric Variables  (1,479,438)
6. Electricity  (1,387,355)
7. Transporting  (1,188,102)
8. Performing Operations  (1,188,102)
9. Measuring Areas  (963,782)
10. Measuring Length, Thickness Or Similar Lineardimensions  (963,782)
11. Measuring Angles  (963,782)
12. Measuring Irregularities Of Surfaces Or Contours  (963,782)
13. Chemistry  (933,265)
14. Metallurgy  (933,218)
15. Human Necessities  (896,439)
16. Radio Direction-Finding  (843,577)
17. Analogous Arrangements Using Other Waves  (843,577)
18. Locating Or Presence-Detecting By Use Of The Reflection Orreradiation Of Radio Waves  (843,577)
19. Determining Distance Or Velocity By Use Of Radio Waves  (843,577)
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Databases 

1. esp@cenet  (10,246,966)
2. ProQuest Central  (327)
3. DOAJ Directory of Open Access Journals  (91)
4. ROAD: Directory of Open Access Scholarly Resources  (58)
5. Geneva Foundation Free Medical Journals at publisher websites  (36)
6. PubMed Central  (31)
7. Wiley-Blackwell AGU Digital Library  (26)
8. MEDLINE  (26)
9. Wiley Open Access Journals  (24)
10. IEEE Open Access Journals  (12)
11. HighWire Press (Free Journals)  (9)
12. EU BookShop  (9)
13. US Government Documents  (8)
14. Springer Open Access Journals  (7)
15. NASA Technical Reports Server  (6)
16. DUGiDocs (Universitat de Girona)  (5)
17. PLoS  (5)
18. Hyper Article en Ligne (HAL) (Open Access)  (5)
19. JSTOR Early Journal Content  (5)
20. ProQuest One Psychology  (4)
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Language 

1. English  (8,380,347)
2. Chinese  (3,129,973)
3. French  (1,434,163)
4. German  (1,180,502)
5. Japanese  (403,773)
6. Korean  (335,683)
7. Russian  (198,577)
8. Spanish  (99,301)
9. Portuguese  (55,337)
10. Italian  (38,300)
11. Swedish  (32,928)
12. Danish  (25,880)
13. Finnish  (23,393)
14. Norwegian  (22,999)
15. Polish  (21,588)
16. Ukrainian  (17,453)
17. Dutch  (15,584)
18. Romanian  (8,007)
19. Czech  (6,826)
20. Hebrew  (4,489)
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Journal Title 

1. Analytical Chemistry  (11)
2. Environ. Sci. Technol.;  (9)
3. Environmental Science & Technology  (14)
4. Journal Of Geophysical Research  (10)
5. Journal Of Geophysical Research;  (14)
6. Meas. Tech.  (12)
7. Measurement Techniques  (23)
8. Solar Energy  (18)
9. Sov. At. Energy  (18)
10. Soviet Atomic Energy  (18)
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