Results 21 to 30 of about 28,933 (187)
W Hya : molecular inventory by ISO-SWS [PDF]
, 2004 Infrared spectroscopy is a powerful tool to probe the inventory of solid state and molecular species in circumstellar ejecta. Here we analyse the infrared spectrum of the Asymptotic Giant Branch star W Hya, obtained by the Short and Long Wavelength ...
A. G. G. M. Tielens +58 more
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Composite Hydrogels with Included Solid-State Nanoparticles Bearing Anticancer Chemotherapeutics
Gels, 2023 Hydrogels have many useful physicochemical properties which, in combination with their biocompatibility, suggest their application as a drug delivery system for the local and prorogated release of drugs. However, their drug-absorption capacity is limited
Alexandar M. Zhivkov +2 more
doaj +1 more source
Sol–gel synthesis and characterization of barium (magnesium) aluminosilicate glass sealants for solid oxide fuel cells [PDF]
, 2011 Solid oxide fuel cells (SOFC) correspond to efficient energy conversion systems coupled with low emissions of pollutants. In the aim to fabricate high temperature planar SOFC, glass and glass-ceramic sealants are developed to associate several criteria ...
Ansart, Florence +4 more
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Understanding the biochar's role in ameliorating soil acidity
Journal of Integrative Agriculture, 2019 Extensive acidic soils, which suffer from accelerated soil acidification, are found in southern China. Soil acidity, aluminum toxicity, and nutrient deficiencies severely limited crop productivity in acidic soils.
Ren-yong SHI +3 more
doaj +1 more source
Silicate Removal in Aluminum Hydroxide Co-Precipitation Process [PDF]
Materials, 2014 The removal mechanisms of silicate using an aluminum hydroxide co-precipitation process was investigated and compared with an adsorption process, in order to establish an effective and validated method for silicate removal from wastewater. Adsorption isotherms, XRD and FT-IR analyses showed that silicate uptake occurred by adsorption to boehmite for ...
Chiharu Tokoro +3 more
openaire +2 more sources
Tracing the development of dust around evolved stars: The case of 47 Tuc [PDF]
, 2006 We observed mid-infrared (7.5-22 mum) spectra of AGB stars in the globular cluster 47 Tuc with the Spitzer telescope and find significant dust features of various types. Comparison of the characteristics of the dust spectra with the location of the stars
Dorschner J. +12 more
core +2 more sources
Materiales de Construccion, 2016 K-based geopolymer binder was prepared by reacting metakaolin with alkaline solutions having different potassium contents and by water curing at room temperature and 80 °C as well as steam curing at 150 and 180 °C. The phase formation, microstructure and
A. Tawfik +4 more
doaj +1 more source
Известия высших учебных заведений: Проблемы энергетики, 2022 THE PURPOSE. Determination of the qualitative composition of deposits on the inner surface of the superheater tubes of the Aksuskaya GRES and CHPP stations of Aluminum Kazakhstan JSC located in the Republic of Kazakhstan. METHODS.
N. D. Chichirova +3 more
doaj +1 more source
Dusty wind of W Hya. Multi-wavelength modelling of the present-day and recent mass-loss [PDF]
, 2015 Low- and intermediate-mass stars go through a period of intense mass-loss at the end of their lives in a phase known as the asymptotic giant branch (AGB). During the AGB a significant fraction of their initial mass is expelled in a stellar wind.
Cox, N. L. J. +7 more
core +3 more sources
Comet dust as a mixture of aggregates and solid particles: model consistent with ground-based and space-mission results [PDF]
, 2009 The most successful model of comet dust presents comet particles as aggregates of submicron grains. It qualitatively explains the spectral and angular change in the comet brightness and polarization and is consistent with the thermal infrared data and ...
Kimura, H., Kolokolova, L.
core +2 more sources