Search results for " ANA"
showing 10 items of 30612 documents
The Use of Stable Isotope Ratio Analysis to Trace European Sea Bass (D. labrax) Originating from Different Farming Systems
2020
This study aimed to determine whether isotopic ratio mass spectrometry (IRMS) can discriminate farmed European sea bass according to different farming systems and geographic origins. Dicentrarchus labrax of commercial size from three different rearing systems (concrete tank inland, sea cages, and extensive methods in valleys or salt works) were collected at the trading period (autumn&ndash
Uniform rectifiability and ε-approximability of harmonic functions in Lp
2020
Suppose that E⊂Rn+1 is a uniformly rectifiable set of codimension 1. We show that every harmonic function is ε-approximable in Lp(Ω) for every p∈(1,∞), where Ω:=Rn+1∖E. Together with results of many authors this shows that pointwise, L∞ and Lp type ε-approximability properties of harmonic functions are all equivalent and they characterize uniform rectifiability for codimension 1 Ahlfors–David regular sets. Our results and techniques are generalizations of recent works of T. Hytönen and A. Rosén and the first author, J. M. Martell and S. Mayboroda. peerReviewed
On continua whose hyperspace of subcontinua is σ-locally connected
1999
Abstract We provide a structural characterization of all continua X whose hyperspace C ( X ) of all subcontinua is the countable union of Peano continua. Applying this result we prove that there exists a uniformly path connected continuum X with no continuous mapping from C ( X ) onto X.
Алгебра и дискретная математика
1986
Сборник содержит результаты исследований по теоретической кибернетике и алгебре, предназначен для научных работников и аспирантов, работающих в области алгебры и теории автоматов. Часть работ связана с приложениями алгебры.
Алгебра и дискретная математика: прикладные вопросы информатики
1989
Сборник содержит результаты исследований в области информатики, прикладной алгебры и дискретной математики.
Beam-induced and cosmic-ray backgrounds observed in the ATLAS detector during the LHC 2012 proton-proton running period
2016
This paper discusses various observations on beam-induced and cosmic-ray backgrounds in the ATLAS detector during the LHC 2012 proton-proton run. Building on published results based on 2011 data, the correlations between background and residual pressure of the beam vacuum are revisited. Ghost charge evolution over 2012 and its role for backgrounds are evaluated. New methods to monitor ghost charge with beam-gas rates are presented and observations of LHC abort gap population by ghost charge are discussed in detail. Fake jets from colliding bunches and from ghost charge are analysed with improved methods, showing that ghost charge in individual radio-frequency buckets of the LHC can be resol…
Высшая математика
1920
Teksta litogrāfija, matemātiskās formulas rakstītas ar roku.
Уравнения математической физики и теория алгоритмов
1972
Сборник включает научные работы по краевым задачам для дифференциальных уравнений в частных производных, по стохастическим дифференциально-функциональным уравнениям, а также по теории алгоритмов.
Теоретические и численные исследования краевых задач
1989
Сборник содержит 17 научных статей, написанных представителями различных вузов страны. В статьях изучаются актуальные вопросы теории нелинейных краевых задач обыкновенных дифференциальных уравнений. Исследован ряд конкретных прикладных задач, возникающих в различных отраслях естествознания.