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Rälsbrott (Bana)

av Överkörmästaren, Saturday, November 26, 2022, 18:44 (890 dagar sedan) @ mormorsgruvan

Rälsbrott: Midland Railway hade minst antal rälsbrott i England åren 1900-1920. Alltså sur Bessemer är bra.

Hur drar du den slutsatsen? Det framgår inte om du beaktat rälsvikt, axellaster, hastigheter osv i din jämförelse.

Det kan väl också lika gärna vara så att de hade bättre råvara, och för övrigt avgör väl råvarans karaktär vilken process som bör användas. Idag är väl basiska metoder vanligast?

Hela tråden:

 

Time: 274
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE pid = 0 AND (mlf2_akismet_rating.spam = 0 AND mlf2_b8_rating.spam = 0) AND category IN (0, 4, 5, 6, 7, 8, 9, 25, 14, 23, 19, 22, 24, 10, 21, 11, 12, 13, 15, 16, 26, 18, 20, 27)

Time: 1373
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE category IN (0, 4, 5, 6, 7, 8, 9, 25, 14, 23, 19, 22, 24, 10, 21, 11, 12, 13, 15, 16, 26, 18, 20, 27) AND (mlf2_akismet_rating.spam = 0 AND mlf2_b8_rating.spam = 0)
Time: 1407
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE (mlf2_akismet_rating.spam = 1 OR mlf2_b8_rating.spam = 1)

Total time: 3063

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