نتایج جستجو برای: star identification
تعداد نتایج: 483510 فیلتر نتایج به سال:
We combine imaging data from the Advanced Camera for Surveys (ACS) with VLT/FORS optical spectroscopy to study the properties of star-forming galaxies in the z = 0.837 cluster CL0152-1357. We have morphological information for 24 star-forming cluster galaxies, which range in morphology from late-type and irregular to compact early-type galaxies. We find that while most star-forming galaxies hav...
Marine saponins are naturally glycosides compounds which possess important biomedical properties such as anti-cancer, antioxidant and anti-inflammatory. Nevertheless, no systematic studies on the anti-inflammatory potential of brittle star saponin and its underlying mechanisms have been reported. In this study, Ophiocoma erinaceus extracted saponin was investigated for its in vitro anti-inflamm...
Over the past decade, most important observations of interstellar medium have been made in infrared and radio regions electromagnetic radiation. Of particular interest were GLIMPSE (Galactic Legacy Infrared Midplane Survey Extraordinaire), MIPSGAL WISE (Wide-field Explorer) surveys several areas star formation. Distinctive features view Galactic disk at wavelengths from 3.4 μm to 22 include ion...
سابقه و هدف: گرلین به طور عمده از معده، در زمان گرسنگی ترشح می شود. این نوروپپتید در تخمدان نیز وجود دارد. با این که اثر کاهش وزن و محدودیت غذایی بر سیستم تولید مثلی اثبات شده است اما مکانیسم دخیل در این فرایند کاملا مشخص نیست. بنابراین هدف از این آزمایش بررسی اثر بالانس انرژی منفی بر بیان گرلین، رسپتور گرلین و ژن های درگیر در استروئیدوژنز تخمدان در فازهای مختلف جنسی می باشد. مواد و روش ها: 48 ...
In this paper a novel night sky star pattern recognition and precise centroiding approaches are proposed. Precision and computation time of image processing algorithm paly a great role in spacecraft in which the night sky star images are utilized for attitude determination. Star pattern recognition and centroiding are the most important steps of image processing algorithm in such attitude deter...
The algorithm for star identification is a crucial technology determining the orientation of spacecraft using sensors. Traditional algorithms achieve matching by seeking unique or few optimal solutions. However, in high-noise environments, some solutions may be lost, which could result failure. A new lost-in-space architecture aimed at rapid under high position noise conditions directly positio...
The idea of integral sum graphs was introduced by Harary (1994). A graph G is said to be an integral sum graph if its nodes can be given a labeling f with distinct integers, so that for any two distinct nodes u and v of G, uv is an edge of G if and only if f(u) + f(v) = f(w) for some node w in G. A tree is said to be a generalized star if it can be obtained from a star by extending each edge to...
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