Results 21 to 30 of about 71,461 (340)

Resistance to Chemical Attack of Hybrid Fly Ash-Based Alkali-Activated Concretes

open access: yesMolecules, 2020
The environmental impacts related to Portland cement production in terms of energy consumption, the massive use of natural resources and CO2 emissions have led to the search for alternative cementitious materials.
William G. Valencia-Saavedra   +1 more
doaj   +1 more source

Shear Response of Lime/GGBS-Stabilised High-Sulphate-Bearing Clay under Consolidated-Undrained Conditions

open access: yesApplied Sciences, 2022
This study investigated the consolidated undrained shear behaviour of a stabilised high-sulphate soil system. Lime was used to stabilise the soil with the inclusion of ground granulated blast furnace slag (GGBS) as an ettringite suppressor.
Eyo Eyo, Samuel Abbey
doaj   +1 more source

Chemical composition and minerals in pyrite ash of an abandoned sulphuric acid production plant [PDF]

open access: yes, 2012
The extraction of sulphur produces a hematite-rich waste, known as roasted pyrite ash, which contains significant amounts of environmentally sensitive elements in variable concentrations and modes of occurrence.
de Brum, Irineu A.S.   +8 more
core   +2 more sources

GENESIS OF THE THERMAL-MINERAL WATERS OF ILIDŽA, BOSNIA AND HERZEGOVINA

open access: yesRudarsko-geološko-naftni Zbornik, 2019
The springs of thermal-mineral waters (TMWs) of Ilidža near Sarajevo appear at the transition of the Central and Inner Dinarides of Bosnia and Herzegovina, at the overthrust front of the Bosnian Flysch and the far southeastern part of Sarajevo-Zenica ...
Tatjana Vlahović, Ferid Skopljak
doaj   +1 more source

The Potential Biotechnological Applications of the Exopolysaccharide Produced by the Halophilic Bacterium <em>Halomonas almeriensis</em>

open access: yesMolecules, 2012
We have studied the extracellular polysaccharide (EPS) produced by the type strain, M8<sup>T</sup>, of the halophilic bacterium <em>Halomonas almeriensis</em>, to ascertain whether it might have any biotechnological applications ...
Victoria Béjar   +4 more
doaj   +1 more source

Controlled Hydrodynamic Cavitation for Reduction of Toxic Metals in Metallurgical Residual Effluents

open access: yesChemical Engineering Transactions, 2023
Wastewater must be treated before being disposed in receiving bodies, in order not to cause negative impacts on the environment. The goal of this research was to determine the effectiveness of treating metallurgical industry wastewater with controlled ...
Harold Matos Maldonado   +1 more
doaj   +1 more source

Heparinase selectively sheds heparan sulphate from the endothelial glycocalyx [PDF]

open access: yes, 2008
A healthy vascular endothelium is coated by the endothelial glycocalyx. Its main constituents are transmembrane syndecans and bound heparan sulphates. This structure maintains the physiological endothelial permeability barrier and prevents leukocyte and ...
Becker, Bernhard F.   +6 more
core   +1 more source

Chondroitin sulphate and keratan sulphate are almost isosteric [PDF]

open access: yesBiochemical Journal, 1991
Keratan sulphate and chondroitin sulphate (KS and CS) in the 2-fold helical configurations that are prevalent in solution are of very similar tacticity. The chiral centres, anionic sites and hydrophobic patches are in identical conformations. Only the position of the acetamido group varies from CS to KS, but part of its intramolecular H-bonding ...
openaire   +3 more sources

Removal of sulphates from waste waters by sulphate-reducing bacteria [PDF]

open access: yesActa Montanistica Slovaca, 2002
are present in almost all types of water, usually as a simple anion SO42-. The sulphates together with hydrogencarbonates and chlorides are principal anions in natural waters.
Luptáková Alena
doaj  

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