Segon (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Segon" in Catalan language version.

refsWebsite

Global rank Catalan rank

7web.archive.org

1^st place

7harvard.edu

18^th place

40^th place

7doi.org

2^nd place

6^th place

6bipm.org

641^st place

182^nd place

2google.cat

1,849^th place

2^nd place

2leapsecond.com

low place

1worldcat.org

5^th place

1springer.com

274^th place

287^th place

1abc.net.au

139^th place

417^th place

1usc.edu

1,077^th place

1,436^th place

1navy.mil

237^th place

355^th place

1cam.ac.uk

670^th place

593^rd place

1arxiv.org

69^th place

186^th place

1npl.co.uk

8,830^th place

3,570^th place

1nist.gov

355^th place

261^st place

1gencat.cat

1,706^th place

4^th place

1theverge.

low place

1iec.cat

6,725^th place

13^th place

abc.net.au

ABC Science: Keeping Time

arxiv.org

AD Ludlow et al. «Systematic study of the ⁸⁷Sr clock transition in an optical lattice». Physical Review Letters, 96, 3, 2006, pàg. 033003. arXiv: physics/0508041. Bibcode: 2006PhRvL..96c3003L. DOI: 10.1103/PhysRevLett.96.033003.

bipm.org

«Unit of time (second) (Definició oficial del segon)» (en anglès). SI brochure. BIPM. Arxivat de l'original el 2011-08-12. [Consulta: 30 octubre 2011].
«Resolució 5 de la 10a. Conferència General de Pesos i Mesures» (en francès). BIPM, 1954.
«Resolució 9 de l'11a Conferència General de Pesos i Mesures» (en anglès). BIPM, 1960.
«Resolució 1 de la 13a. Conferència General de Pesos i Mesures» (en anglès). BIPM, 1967.
Unit of time (second) Arxivat 2011-08-12 a Wayback Machine., SI brochure, Section 2.1.1.3, Oficina Internacional de Pesos i Mesures
Définition de l'unité de temps (seconde) Resolució número 9 de la 11^a Conferència General de Pesos i Mesures, 1960. Oficina Internacional de Pesos i Mesures

cam.ac.uk

cl.cam.ac.uk

See page 515 in RA Nelsonet al.; McCarthy, D D; Malys, S; Levine, J; Guinot, B; Fliegel, H F; Beard, R L; Bartholomew, T R «The leap second: its history and possible future». Metrologia, 38, 6, 2000, pàg. 509–529. Bibcode: 2001Metro..38..509N. DOI: 10.1088/0026-1394/38/6/6.

doi.org

dx.doi.org

W Markowitz, RG Hall, L Essen, JVL Parry «Frequency of cesium in terms of ephemeris time». Physical Review Letters, 1, 3, 1958, pàg. 105–107. Bibcode: 1958PhRvL...1..105M. DOI: 10.1103/PhysRevLett.1.105.
S Leschiutta «The definition of the 'atomic' second». Metrologia, 42, 3, 2005, pàg. S10–S19. Bibcode: 2005Metro..42S..10L. DOI: 10.1088/0026-1394/42/3/S03.
DD McCarthy, C Hackman, R Nelson «The Physical Basis of the Leap Second». Astronomical Journal, 136, 5, 2008, pàg. 1906–1908. Bibcode: 2008AJ....136.1906M. DOI: 10.1088/0004-6256/136/5/1906. «... the SI second is equivalent to an older measure of the second of UT1, which was too small to start with and further, as the duration of the UT1 second increases, the discrepancy widens.»
In the late 1950s, the caesium standard was used to measure both the current mean length of the second of mean solar time (UT2) (9.192.631.830 cycles) and also the second of ephemeris time (ET) (9.192.631.770±20 cycles), see L Essen «Time Scales». Metrologia, 4, 4, 1968, pàg. 161–165. Bibcode: 1968Metro...4..161E. DOI: 10.1088/0026-1394/4/4/003.. As noted in page 162, the 9.192.631.770 figure was chosen for the SI second. L Essen in the same 1968 article stated that this value "seemed reasonable in view of the variations in UT2".
See page 515 in RA Nelsonet al.; McCarthy, D D; Malys, S; Levine, J; Guinot, B; Fliegel, H F; Beard, R L; Bartholomew, T R «The leap second: its history and possible future». Metrologia, 38, 6, 2000, pàg. 509–529. Bibcode: 2001Metro..38..509N. DOI: 10.1088/0026-1394/38/6/6.
AD Ludlow et al. «Systematic study of the ⁸⁷Sr clock transition in an optical lattice». Physical Review Letters, 96, 3, 2006, pàg. 033003. arXiv: physics/0508041. Bibcode: 2006PhRvL..96c3003L. DOI: 10.1103/PhysRevLett.96.033003.
R Wynands, S Weyers «Atomic fountain clocks». Metrologia, 42, 3, 2005, pàg. S64–S79. Bibcode: 2005Metro..42S..64W. DOI: 10.1088/0026-1394/42/3/S08.

gencat.cat

www20.gencat.cat

«Abreviacions» (pdf) p. 37. Barcelona: Generalitat de Catalunya; Departament de la Presidència; Secretaria de Política Lingüística, 2005. Arxivat de l'original el 26 d’agost 2014. [Consulta: 28 maig 2013].

google.cat

books.google.cat

al-Biruni; Sachau C Edward. The chronology of ancient nations: an English version of the Arabic text of the Athâr-ul-Bâkiya of Albîrûnî, or "Vestiges of the Past" (en anglès). Londres: W.H. Allen, 1879, p. 147–149. OCLC 9986841.
«Reports of the committee on electrical standards» (en anglès) p. 90. Jenkin, 1873. [Consulta: 28 maig 2013].

harvard.edu

adsabs.harvard.edu

W Markowitz, RG Hall, L Essen, JVL Parry «Frequency of cesium in terms of ephemeris time». Physical Review Letters, 1, 3, 1958, pàg. 105–107. Bibcode: 1958PhRvL...1..105M. DOI: 10.1103/PhysRevLett.1.105.
S Leschiutta «The definition of the 'atomic' second». Metrologia, 42, 3, 2005, pàg. S10–S19. Bibcode: 2005Metro..42S..10L. DOI: 10.1088/0026-1394/42/3/S03.
DD McCarthy, C Hackman, R Nelson «The Physical Basis of the Leap Second». Astronomical Journal, 136, 5, 2008, pàg. 1906–1908. Bibcode: 2008AJ....136.1906M. DOI: 10.1088/0004-6256/136/5/1906. «... the SI second is equivalent to an older measure of the second of UT1, which was too small to start with and further, as the duration of the UT1 second increases, the discrepancy widens.»
In the late 1950s, the caesium standard was used to measure both the current mean length of the second of mean solar time (UT2) (9.192.631.830 cycles) and also the second of ephemeris time (ET) (9.192.631.770±20 cycles), see L Essen «Time Scales». Metrologia, 4, 4, 1968, pàg. 161–165. Bibcode: 1968Metro...4..161E. DOI: 10.1088/0026-1394/4/4/003.. As noted in page 162, the 9.192.631.770 figure was chosen for the SI second. L Essen in the same 1968 article stated that this value "seemed reasonable in view of the variations in UT2".
See page 515 in RA Nelsonet al.; McCarthy, D D; Malys, S; Levine, J; Guinot, B; Fliegel, H F; Beard, R L; Bartholomew, T R «The leap second: its history and possible future». Metrologia, 38, 6, 2000, pàg. 509–529. Bibcode: 2001Metro..38..509N. DOI: 10.1088/0026-1394/38/6/6.
AD Ludlow et al. «Systematic study of the ⁸⁷Sr clock transition in an optical lattice». Physical Review Letters, 96, 3, 2006, pàg. 033003. arXiv: physics/0508041. Bibcode: 2006PhRvL..96c3003L. DOI: 10.1103/PhysRevLett.96.033003.
R Wynands, S Weyers «Atomic fountain clocks». Metrologia, 42, 3, 2005, pàg. S64–S79. Bibcode: 2005Metro..42S..64W. DOI: 10.1088/0026-1394/42/3/S08.

iec.cat

dlc.iec.cat

«Segon». Diccionari General de la Llengua Catalana. Institut d'Estudis Catalans. [Consulta: 28 maig 2013].

leapsecond.com

W Markowitz, RG Hall, L Essen, JVL Parry «Frequency of cesium in terms of ephemeris time». Physical Review Letters, 1, 3, 1958, pàg. 105–107. Bibcode: 1958PhRvL...1..105M. DOI: 10.1103/PhysRevLett.1.105.
In the late 1950s, the caesium standard was used to measure both the current mean length of the second of mean solar time (UT2) (9.192.631.830 cycles) and also the second of ephemeris time (ET) (9.192.631.770±20 cycles), see L Essen «Time Scales». Metrologia, 4, 4, 1968, pàg. 161–165. Bibcode: 1968Metro...4..161E. DOI: 10.1088/0026-1394/4/4/003.. As noted in page 162, the 9.192.631.770 figure was chosen for the SI second. L Essen in the same 1968 article stated that this value "seemed reasonable in view of the variations in UT2".

navy.mil

tycho.usno.navy.mil

«Leap Seconds». Time Service Department, United States Naval Observatory. Arxivat de l'original el 2012-06-11. [Consulta: 31 desembre 2006].

nist.gov

tf.nist.gov

«NIST-F1 Cesium Fountain Atomic Clock». NIST. [Consulta: 19 agost 2009].

npl.co.uk

«Trapped ion optical frequency standards». National Physical Laboratory. Arxivat de l'original el 2009-02-14. [Consulta: 25 novembre 2012].

springer.com

Tekeli, Sevim. «Taqi al-Din». A: Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures (en anglès). Kluwer Academic Publishers, 1997.

theverge.

Vincent, James. «El reloj más preciso jamás construido sólo pierde un segundo cada 15 000 millones de años». TheVerge. Arxivat de l'com/2015/4/22/8466681/most-accurate-atomic-clock-optical-lattice-strontium original el 27 de enero de 2018. [Consulta: 26 enero 2018].

usc.edu

illumin.usc.edu

«Long Case Clock: Pendulum» (en anglès). The University of Southern California. Arxivat de l'original el 2016-03-06. [Consulta: 13 juliol 2009].

web.archive.org

«Unit of time (second) (Definició oficial del segon)» (en anglès). SI brochure. BIPM. Arxivat de l'original el 2011-08-12. [Consulta: 30 octubre 2011].
«Long Case Clock: Pendulum» (en anglès). The University of Southern California. Arxivat de l'original el 2016-03-06. [Consulta: 13 juliol 2009].
Unit of time (second) Arxivat 2011-08-12 a Wayback Machine., SI brochure, Section 2.1.1.3, Oficina Internacional de Pesos i Mesures
«Leap Seconds». Time Service Department, United States Naval Observatory. Arxivat de l'original el 2012-06-11. [Consulta: 31 desembre 2006].
«Trapped ion optical frequency standards». National Physical Laboratory. Arxivat de l'original el 2009-02-14. [Consulta: 25 novembre 2012].
«Abreviacions» (pdf) p. 37. Barcelona: Generalitat de Catalunya; Departament de la Presidència; Secretaria de Política Lingüística, 2005. Arxivat de l'original el 26 d’agost 2014. [Consulta: 28 maig 2013].
Vincent, James. «El reloj más preciso jamás construido sólo pierde un segundo cada 15 000 millones de años». TheVerge. Arxivat de l'com/2015/4/22/8466681/most-accurate-atomic-clock-optical-lattice-strontium original el 27 de enero de 2018. [Consulta: 26 enero 2018].

worldcat.org

al-Biruni; Sachau C Edward. The chronology of ancient nations: an English version of the Arabic text of the Athâr-ul-Bâkiya of Albîrûnî, or "Vestiges of the Past" (en anglès). Londres: W.H. Allen, 1879, p. 147–149. OCLC 9986841.