NGC5471B has been suggested to contain a hypernova remnant because of its extraordinarily bright X-ray emission. To assess its true nature, we have obtained high-resolution images in continuum bands and nebular lines with the Hubble Space Telescope, and high-dispersion long-slit spectra with the Kitt Peak National Observatory 4-m echelle spectrograph. The images reveal three supernova remnant (...

The K−/K+ ratio in heavy-ion collisions at GSI is studied including the properties of the participating hadrons in hot and dense matter, paying a particular attention to the in-medium properties of antikaons at finite temperature. The determination of the temperature and chemical potential at freeze-out conditions compatible with the ratio K−/K+ is very delicate, and depends on the approach ado...

This work presents the hydrogen production from steam gasification of palm kernel shell (PKS) at 700 C in the presence of 5% Ni/BEA and 5% Fe/BEA as catalysts. The steam gasification was performed in two-staged reactors to evaluate the effect of calcinations temperature and the steam to biomass ratio on the product gas composition. The catalytic activity of Ni/BEA catalyst decreases with increa...

It has been proposed that the discrepancy between the partially-conserved axialcurrent prediction and the nuclear shell-model calculations of the ratio CP/CA in the muon-capture reactions can be solved in the case of Si by introducing effective transition operators. Recently there has been experimental interest in measuring the needed angular correlations also in Ne. Inspired by this, we have p...

Mill load is an important equipment index which is closely related to operating efficiency, product quality and energy consumption of grinding process. Due to high dimension and collinearity of spectral data, mill load model has high complexity, poor interpretability and generalization. A soft sensor modeling method of mill load parameters is proposed based on frequency spectrum feature using S...

A Yagi-Uda-like optical nanoantenna concept using resonant core-shell plasmonic particles as its “reflectors” and “directors” is studied numerically. Such particles when placed near an optical dipole source in a certain arrangement may exhibit large induced dipole moments, resulting in shaping the far-field radiation pattern, analogous to the far field of classical Yagi-Uda antennas in the micr...

Thorough understanding of the behaviour core–shell microparticles with a liquid core is essential for determining their performance in applications under different operation conditions. This paper reports particles thermal and mechanical loads. First, we formulated an analytical model heating process microparticle core. Next, utilised axisymmetric elastic spherical shell upon compression to des...

Reducing the retention time in carbohydrate analysis is crucial to development of resins for application high-performance liquid chromatography (HPLC). In order solve this problem a new core-shell ion-exchange resin with thin shell layer consisting an ion-exchanging porous on hard polymer core was prepared use HPLC. The effect degree cross-linking (10–55%) shell, wherein core/shell monomer weig...

Buckling of soft matter is ubiquitous in nature and has attracted increasing interest recently. This paper studies the retractile behaviors of a spherical shell perforated by sophisticated apertures, attributed to the buckling-induced large deformation. The buckling patterns observed in experiments were reproduced in computational modeling by imposing velocity-controlled loads and eigenmode-aff...