Results 31 to 40 of about 29,374 (300)

Thermal analysis of wood of the main tree species of Central Siberia [PDF]

open access: yesСибирский лесной журнал, 2015
Thermal decomposition of wood from coniferous and deciduous species of Siberia has been studied using thermogravimetry (TG) and differential scanning calorimetry (DSC).
S. R. Loskutov   +2 more
doaj   +1 more source

Synthesis of an active substance for microcapsules in a polymer composite with a self-healing effect [PDF]

open access: yesНанотехнологии в строительстве
Introduction. The aim of this study is to examine the properties of a synthesized epoxy resin hardener based on dicyclopentadiene and maleic anhydride. Materials and methods. The following chemical reagents were used for synthesis: dicyclopentadiene 98%
Natalia I. Cherkashina   +4 more
doaj   +1 more source

Gyroid Structured Globugraphite Carbon Foam With Hierarchical and Tailored Pore Size

open access: yesAdvanced Engineering Materials, EarlyView.
Secondary sacrificial templates were designed and printed to create a defined network within a porous carbon. Lattices thermally degrades during the sintering process. Lattices are imprinted into the ceramic template and transferred to the morphology of Globugraphite.
Christiane Roller   +6 more
wiley   +1 more source

SINGLE-STAGE AND SIMPLE FABRICATION OF PE FILMS DECORATED WITH HALLOYSITE NANOTUBES

open access: yesKPI Science News
Background. Environmental pollution with plastic waste is a global problem that requires the search for effective and safe ways of disposal or processing of secondary raw materials.
Iryna Kovinchuk   +2 more
doaj   +1 more source

Molybdenum(V), germanium(IV), aluminum(III) and nickel(II) adducts with ethyleneurea, ethylenethiourea and propyleneurea: some empirical correlations involving TG and IR data [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
The adducts MoCl5·2eu, MoCl5·2pu, GeCl4·2etu, AlCl3·2pu, AlCl3·3pu, NiCl2·2etu and NiCl2·4etu (eu = ethyleneurea, etu = ethylenethiourea and pu =propyleneurea) were synthesized and characterized by elemental analysis (C, H, N), infrared spectroscopy (IR)
ROBSON F. DE FARIAS, CLAUDIO AIROLDI
doaj  

Fracionamento químico da matéria orgânica e características de ácidos húmicos de solos com horizonte a antrópico da amazônia (Terra Preta) Chemical fractionation of organic matter and humic acid characteristic in anthropogenic dark earth soils of brazilian amazonic region

open access: yesActa Amazonica, 2007
Os solos da Amazônia que possuem horizonte A antrópico (Au) apresentam elevada fertilidade natural geralmente atribuída ao teor elevado de matéria orgânica e à sua elevada reatividade.
Tony Jarbas Ferreira Cunha   +7 more
doaj   +1 more source

CLASSIFICATION OF BOUND WATER FORMS IN KAOLINITIC CLAYS

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2021
Relevance. Water is the most important component of soils, as it influences the main geological processes. This is due to the peculiarities of its composition and structure.
Valery V. Seredin   +2 more
doaj   +1 more source

Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents

open access: yesAdvanced Functional Materials, EarlyView.
A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster   +11 more
wiley   +1 more source

Thermal stability and reduction of iron oxide nanowires at moderate temperatures

open access: yesBeilstein Journal of Nanotechnology, 2014
Background: The thermal stability of iron oxide nanowires, which were obtained with a hard template method and are promising elements of Li-ion based batteries, has been investigated by means of thermogravimetry, infrared and photoemission spectroscopy ...
Annalisa Paolone   +4 more
doaj   +1 more source

Thermal decomposition of peisleyite: a thermogravimetry and hot stage Raman spectroscopic study [PDF]

open access: yes, 2004
High resolution thermogravimetric analysis coupled with a gas evolution mass spectrometer was used to study the decomposition of peisleyite Na3 Al16(SO4)(PO4)10(OH)17•20H2O.
Erickson, Kristy L.   +2 more
core   +1 more source

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