First Stars VIII -- Enrichment of the neutron-capture elements in the early Galaxy [PDF]
Our aim is to measure accurate, homogeneous neutron-capture element abundances for the sample of 32 EMP giant stars studied earlier in this series, including 22 stars with [Fe/H] $< -$3.0. Based on high-resolution, high S/N spectra from the ESO VLT/UVES,
Abel +89 more
core +4 more sources
Flux penetration and a.c. losses in type II superconductors: I. Model calculations [PDF]
A numerical method is presented which allows the calculation of the a.c. response of type II superconductors under quasi-static conditions for arbitrary jc (B,x), Ben (Ba) and Bex (Ba) relations.
Gijsbertse, E.A. +2 more
core +2 more sources
Development of knowledge management infrastructure in organization [PDF]
The aim of the article. The aim of the article is to analyze development of knowledge management infrastructure (KM infrastructure) at various stages of knowledge management evolution at organization. The results of the analysis. KM infrastructure is an
N.I. Sytnik
doaj
Superconducting properties of Gd-Ba-Cu-O single grains processed from a new, Ba-rich precursor compound [PDF]
Gd-Ba-Cu-O (GdBCO) single grains have been previously melt-processed successfully in air using a generic Mg-Nd-Ba-Cu-O (Mg-NdBCO) seed crystal. Previous research has revealed that the addition of a small amount of BaO2 to the precursor powders prior to ...
D A Cardwell +6 more
core +1 more source
Effects of Different Concentrations of Plant Growth Regulators on Callus Induction and Shoot Regeneration in St. John’s Wort (Hypericum perforatum) [PDF]
Objective St. John’s wort belongs to Hypericaceae family and has been used since ancient Greeks as a herb for the treatment of anxiety, depression, wounds and burns.
Mehdi Soltanpour +2 more
doaj +1 more source
INFLUENCE OF BENZYLADENINE AND KRISTALON FERTILIZER TREATMENTS ON GROWTH AND CHEMICAL CONSTITUENTS OF LEMON CYPRESS (CUPRESSUS MACROCARPA L.) PLANT [PDF]
A pot experimental trial was carried out during 2017 and 2018 seasons, to study the effect of 16 treatments, which were represented by the combinations between four concentrations of benzyladenine (BA), i.e. 0, 50, 75 and 100 ppm and kristalon fertilizer
Y. Ghatas
doaj +1 more source
Chemical abundance analysis of 19 barium stars
We aim at deriving accurate atmospheric parameters and chemical abundances of 19 barium (Ba) stars, including both strong and mild Ba stars, based on the high signal-to-noise ratio and high resolution Echelle spectra obtained from the 2.16 m telescope at
Chen, Y. Q. +12 more
core +3 more sources
Aggregation in a mixture of Brownian and ballistic wandering particles
In this paper, we analyze the scaling properties of a model that has as limiting cases the diffusion-limited aggregation (DLA) and the ballistic aggregation (BA) models.
A.-L. Barabasi +4 more
core +1 more source
ASSESSMENT OF 16-YEAR-OLD FEMALE BASKETBALL PLAYERS WITH CHRONOJUMP SYSTEM [PDF]
In the basketball game, lower extremity strength plays a key role in various game actions. The jumping mat (Chronojump), an open-source (free software and open hardware), is available to the public on official servers, emphasizing peer review and ...
Mariana Borukova, Ivan Kalinov
doaj +3 more sources
Self-field effects upon the critical current density of flat superconducting strips
We develop a general theory to account self-consistently for self-field effects upon the average transport critical current density Jc of a flat type-II superconducting strip in the mixed state when the bulk pinning is characterized by a field-dependent ...
Ali A Babaei Brojeny +6 more
core +1 more source

