نتایج جستجو برای: input excesses

تعداد نتایج: 222928  

Journal: :Proceedings of the National Academy of Sciences 1974

Journal: :Journal of Geochemical Exploration 2023

High concentrations of heavy metals and other pollutants in river sediments can have detrimental effects on the ecosystem humans. The composition throughout drainage basins therefore provides important information for environmental monitoring. An obvious first step using sediment compositions monitoring is to quantify natural baseline concentrations. Once baselines been quantified, it straightf...

2002
Michael C. Liu

We present some results from a systematic survey for disks around spectroscopically identified young brown dwarfs and very low mass stars. We find that ≈75% of our sample show intrinsic IR excesses, indicative of circum(sub)stellar disks. The observed excesses are well-correlated with Hα emission, consistent with a common disk accretion origin. Because the excesses are modest, conventional anal...

2007
E. C. Hopewell M. J. Barlow J. E. Drew Y. C. Unruh Q. A. Parker M. J. Pierce A. A. Zijlstra

We report the discovery of 5 massive Wolf-Rayet (WR) stars resulting from a programme of follow-up spectroscopy of candidate emission line stars in the AAO/UKST Southern Galactic Plane Hα survey. The 6195-6775 Å spectra of the stars are presented and discussed. A WC9 class is assigned to all 5 stars through comparison of their spectra with those of known latetype WC stars, bringing the known to...

2002
STEPHEN SIMONS Jonathan M. Borwein

We explore the connection between the concepts “excess” and “duality gap” from epigraphical analysis and optimization, and the functional analytic concepts of weak* and weak compactness. We also discuss briefly the connection with R. C. James’s “sup theorem”.

2009
Anne-Laure Fougères Philippe Soulier

We investigate conditions for the existence of the limiting distribution of a bivariate random vector when one component becomes large. We revisit the existing literature on the topic, and present some new sufficient conditions. We focus on conditions which can be expressed in terms of geometric properties of the level curves of the density of the random vector. When the limiting conditional di...

2016
Maurizio Giannotti Igor Irastorza Javier Redondo Andreas Ringwald

Several stellar systems (white dwarfs, red giants, horizontal branch stars and possibly the neutron star in the supernova remnant Cassiopeia A) show a mild preference for a non-standard cooling mechanism when compared with theoretical models. This exotic cooling could be provided by Weakly Interacting Slim Particles (WISPs), produced in the hot cores and abandoning the star unimpeded, contribut...

Journal: :Hokkaido Mathematical Journal 2004

Journal: :Symposium - International Astronomical Union 1987

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