Results 91 to 100 of about 55,835 (345)
Symbiotic Nova PU Vul - 33 Years of Observations
Open Astronomy, 2012 We present UBVRI light curves of the symbiotic nova PU Vul after its outburst in 1978. Three observed eclipses of the hot component by the cool one were used to determine the ephemeris of the binary system as JD (Min I) = 2444550(15) + 4897(10) × E days.
Shugarov S., Chochol D., Kolotilov E.
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Novas tecnologias, novas sensibilidades
Comunicação & Educação, 2000 O artigo discute as mudanças na cultura contemporânea, advindas do processo de globalização, e como essas mudanças têm suscitado a discussão sobre as crises de identidade, principalmente aquelas calcadas no Estado nacional, evidenciando novas formas de se vivenciar a identidade de pertencimento a um território. Isso se dá ao mesmo tempo em que as novas
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Advanced Materials Interfaces, EarlyView.This study highlights the importance of designing photoanode architectures for solar water splitting that align intrinsic material properties with functional interfaces to optimize the extraction of photogenerated charges. The incorporation of NiOx surface layers in LaTiO2.5N0.5 (LTON) thin film photoanodes exemplifies this approach by leveraging band ...
Eric Burns +4 more
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A Composite Light Curve Model of the Symbiotic Nova PU Vul (1979)
Open Astronomy, 2012 PU Vul (1979) is a symbiotic nova that shows a long-lasting flat optical peak followed by a slow decline. We made a quasi-evolution model for outbursts on a 0.6 M⊙ white dwarf consisting of a series of static solutions with optically-thin winds.
Kato M., Mikołajewska J., Hachisu I.
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The Nova Rate in M94 (NGC 4736)
, 2010 A multi-epoch H$\alpha$ survey of the early-type spiral galaxy M94 (NGC 4736) has been completed as part of a program to establish the galaxy's nova rate.
A. W. Shafter +23 more
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Advanced Materials Interfaces, EarlyView.A superior double‐cladding optical fiber temperature sensor (OFTS) is fabricated by utilizing a bright and stable near‐pure green UC phosphor NaLu(WO4)2:Er3+/Yb3+ as sensing material. The OFTS exhibits a high temperature measurement accuracy of 0.155°C at 303 K, excellent measuring repeatability and chemical stability, along with strong resistance to ...
Jing Lyu +4 more
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The UBV Color Evolution of Classical and Symbiotic Novae
Acta Polytechnica CTU Proceedings, 2015 We identified a general course of classical nova outbursts in the B − V vs. U − B diagram. It has been reported that novae show spectra similar to A–F supergiants near optical light maximum.
I. Hachisu, M. Kato
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NOVAS TECNOLOGIAS, NOVAS COMPETÊNCIAS
Revista Diálogo Educacional, 2002 Este artigo demonstra que a era da informação e das novas tecnologias requer uma profunda revisão do sistema educativo, especificamente neste, dos professores, tendo em vista que a cultura que envolve um povo e seus modos de viver alteram seus sistemas de valores e crenças, seus instrumentos de trabalho, seus tipos de organização social, seja ela ...
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Swift X-ray Observations of Classical Novae
, 2007 The new gamma-ray burst mission Swift has obtained pointed observations of several classical novae in outburst. We analyzed all the observations of classical novae from the Swift archive up to 30 June, 2006.
A. Retter +19 more
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Advanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.This article demonstrates that encasing a hyperelastic balloon in an inextensible sleeve greatly increases its burst pressure. This simple mechanical behavior can be used to produce an asymmetric inflation‐deflation sequence for coupled balloons with different thicknesses so they could serve as a soft robot's rear and front anchors when driven from a ...
Ifat Gertler, Katherine J. Kuchenbecker
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