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单词 H₀
释义

H₀

See also: H0 and H⁰

Translingual

Symbol

H0

  1. (statistics) null hypothesis
    • 2008, Giuseppe Cicchitelli, Statistica. Principi e metodi (in Italian), Pearson, →ISBN, OCLC 224386935, page 445:
      Si voglia, ora, verificare l’ipotesi nulla H0 : μ = μ0 contro l’alternativa H1 : μ < μ0.
      Let us now test the null hypothesis H0 : μ = μ0 against the alternative H1 : μ < μ0.
    • 2018 August 1, Shen Bicheng (沈必成), Zuo Qiang (左强), 预防医学 [Preventative Medicine] (in Chinese), Beijing Book Co. Inc., →ISBN, OCLC 1097974521:
      I型错误又称第I类错误,指拒绝了实际上成立的H0,为“弃真”的错误,发生概率为α(即检验水准)。
      Type I error, also known as Class I error, is an error that rejects H0, which actually holds, and is "discarded while true" with a probability of α (i.e., the significance level).
  2. (cosmology) Hubble constant
    • 2019 July 17, Eunil Won (원은일), 우주 탄생의 비밀을 찾아서 [In search of the secret of the birth of the universe] (in Korean), 세창출판사, →ISBN, pages 35–36:
      허블 상 수라고 부르는 이 기울기 H0는 허블을 기념하기 위한 것이고 아래 첨자 0은 오늘날의 값을 의미합니다.
      Heobeul sang surago bureuneun i giulgi H0neun heobeureul ginyeomhagi wihan geosigo arae cheomja 0eun oneullarui gapseul uimihamnida.
      This slope H0 is called the Hubble constant in honor of Hubble, and the subscript 0 stands for the present value.
    • 2021 July 21, Gravitationswellen: Start in eine neue Astronomie (Spektrum Kompakt) (in German), Spektrum der Wissenschaft, →ISBN, page 27:
      Leider lieferten bislang verschiedene Messmethoden für H0 voneinander abweichende Ergebnisse, was ein großes Rätsel der modernen Kosmologie ist.
      Unfortunately, different measurement methods for H0 have so far given divergent results, which is a great mystery of modern cosmology.
  3. (chemistry) Hammett acidity function
    • 2007, Georgia K. Kyriakou (Γεωργία Κ. Κυριάκου), Σύνθεση μεσοπορώδους οξειδίου του δημητρίου με ελεγχόμενη κατανομή μεγέθους των πόρων [Mesoporous cerium oxide synthesis with controlled pore size distribution] (thesis, in Greek), University of Cyprus, page 45:
      Το H0 όρίζεται σαν η ικανότητα του οξέως να δίνει ένα πρωτόνιο στον βασικό δείκτη
      To H0 órízetai san i ikanótita tou oxéos na dínei éna protónio ston vasikó deíkti
      H0 is defined as the ability of an acid to give a proton to the base index
    • 2011, Jean-Louis Brisset, editor, Chimie analytique en solution (in French), second edition, Lavoisier, →ISBN, OCLC 1237379658, page 74:
      H0 mesure la tendance de la solution à transférer un proton vers une base moléculaire B.
      H0 measures the tendency of the solution to transfer a proton to a molecular base B.
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