نتایج جستجو برای: 099 and r2 094
تعداد نتایج: 16831796 فیلتر نتایج به سال:
Introduction: Acfer 094 is one of the most primitive chondrites, which appears to have escaped thermal metamorphism above 300°C [1] and can potentially provide important clues to primary, undisturbed by parent body processes, abundances of short-lived ra-dionuclides in its components. Krot et al. [2] have recently described mineralogy and petrography of the Al-rich chondrules and refractory inc...
In recent years there has been much pressure placed on system designers to verify their designs with computer simulations before committing to actual printed circuit board layouts and hardware. Simulating complex digital designs is extremely beneficial, and very often, the prototype phase can be eliminated entirely. The same is not true for most analog circuits. While simulation can give a grea...
The High Energy Stereoscopic System (H.E.S.S.) observatory has carried a deep survey of the Galactic plane, in course which existence significant number ($\sim$ 78) TeV $\gamma$-ray sources was confirmed, many remain unidentified. HESS J1828-099 is point-like (Gaussian stand. dev. $<$ 0.07$^{\circ}$) unidentified source among 17 confirmed H.E.S.S. Plane Survey (HGPS) catalog. This also unique b...
We present high resolution radio observations of the nuclear radio emission in a sample of eight radio galaxies having Megaparsec sizes, using the European VLBI network at 18 cm. At a resolution of 25 mas we detect all the giant radio galaxies from our sample. Among themDA 240 and 1331−099 were imaged for an extended period. These observations reveal a twin-jet structure for DA 240 and one-side...
پژوهش حاضر با هدف تعیین رابطه فراشناخت و اهداف پیشرفت با یادگیری درحد تسلط ریاضی در دانشجویان دانشگاه یزد انجام شده است. روش نمونه گیری در این پژوهش، نمونه گیری دردسترس بوده و جامعه ی آماری این پژوهش شامل دانشجویان رشته های مختلف دانشگاه یزد بود که در مقطع کارشناسی در نیم سال دوم تحصیلی 91-90 مشغول به تحصیل و گذراندن درس معادلات دیفرانسیل بودند. از این میان تعداد 276 نفر،153 مرد و 123 زن به عنو...
Alba Arboix i AlióBarcelona. Esglésies construcció de la ciutatBarcelona: Ajuntament Barcelona y Església Arxidiocesana Barcelona. Barcelona, 2018, 208 p. Idioma: catalán. Tapa blanda. 20 €ISBN: 978-84-9156-094-4
fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...
We present the results of a recent reverberation-mapping campaign undertaken to improve measurements of the radius of the broad line region and the central black hole mass of the quasar PG2130+099. Cross correlation of the 5100 Å continuum and Hβ emission-line light curves yields a time lag of 22.9 −4.3 days, corresponding to a central black hole mass MBH = (3.8 ± 1.5)×10M⊙. This value supports...
BackgroundAngiotensin converting enzyme 2 (ACE2) protein serves as the host receptor for SARS-CoV-2, with a critical role in viral infection. We aim to understand population level variation of nasopharyngeal ACE2 transcription people tested COVID-19 and relationship between SARS-CoV-2 load, while adjusting expression of: (i) complementary protease, Transmembrane serine protease (TMPRSS2), (ii) ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید