An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 3 Search : closure
 closure   بندش   bandeš (#)Fr.: clôture   Math.: The property of a set in which the application of a given mathematical operation to any member of the set always has another member of the set as its result. The intersection of all closed sets that contain a given set.M.E., from M.Fr., from O.Fr. closure "that which encloses," from L. clausura "lock, fortress, a closing," from p.p. stem of claudere "to close."Bandeš, verbal noun of bastan "to shut, bind; to clot; to form seed buds," from Mid.Pers. bastan/vastan "to bind, shut," Av./O.Pers. band- "to bind, fetter," banda- "band, tie;" Skt. bandh- "to bind, tie, fasten;" PIE *bhendh- "to bind," cf. Ger. binden, E. bind. closure axiom   بنداشت ِ بندش   bondâšt-e bandešFr.: axiome de clôture   A basic rule in → group theory stating that if a and b are a group element then a * b is also a group element.→ closure; → axiom. closure phase   فاز ِ بندش   fâz-e bandešFr.: clôture de phase   In astronomical interferometry, a method using triplets of telescopes in an array to calculate the phase information and get over the effects of atmospheric turbulence. The method, used in high-resolution astronomical observations, both at radio and at optical wavelengths, allows imaging of complex objects in the presence of severe aberrations.→ closure; → phase.