Results 1 to 10 of about 225,314 (391)

Calcite-dissolving bacteria: promising approach as bio-fertilizer [PDF]

open access: yesFrontiers in Microbiology
Calcium (Ca) is an essential macronutrient and a secondary messenger for the proper growth and functioning of plants. It is essential for membrane stability, cell integrity, cell division, and elongation.
Christina Lemson Hambo   +4 more
doaj   +2 more sources

Investigation of Calcium and Magnesium Phosphate Crystals in Stones Treated with Diammonium Hydrogen Phosphate Conservation Product: Potential of Micro-Raman Spectroscopy

open access: yesCrystals, 2023
This study is aimed at investigating crystals (calcium and magnesium phosphates) formed due the interaction of an inorganic conservation treatment (diammonium hydrogen phosphate—DAP) with carbonatic (calcitic and dolomitic) stones through micro-Raman ...
Claudia Conti   +8 more
doaj   +1 more source

Ammonium N-(pyridin-2-ylmethyl)oxamate (AmPicOxam): A Novel Precursor of Calcium Oxalate Coating for Carbonate Stone Substrates

open access: yesMolecules, 2023
Ammonium N-(pyridin-2-ylmethyl)oxamate (AmPicOxam), synthesized from O-methyl-N-(pyridin-2-ylmethyl)oxamate, was spectroscopically and structurally characterized and assayed as a novel precursor for the protection and consolidation of carbonate stone ...
Anna Pintus   +14 more
doaj   +1 more source

Deep marine diagenesis, offshore Hawaii and Enewetak, with implications for older carbonates

open access: yesThe Depositional Record, 2023
Cenozoic limestones from Hawaii and Enewetak were studied to characterise diagenesis in deep sea water. Hawaii samples were from subsea outcrops of drowned Pleistocene reefs 150–1,505 m deep (maximum age 550–600 ka).
Arthur Saller, Charlotte Winterbottom
doaj   +1 more source

Effect of Fe3+ on Flotation Separation of Fluorite and Calcite in Sodium Silicate System

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of mineral processing engineering. Fluorite and calcite are calcium-bearing minerals with similar physical and chemical properties.
Jiangfeng Ning   +5 more
doaj   +1 more source

PVC mixtures’ mechanical properties with the addition of modified calcite as filler [PDF]

open access: yesHemijska Industrija, 2012
In this study mechanical properties of PVC mixtures (PVC, stabilizer, lubricant, filler) such as tensile strength, tensile elongation, breaking strength, and breaking elongation were investigated.
Vučinić Dušica R.   +4 more
doaj   +1 more source

Hydrophobic Carbonate Coatings on Pure Biodegradable Mg by Immersion in Carbonated Water: Formation Mechanism

open access: yesApplied Sciences, 2022
Mg is one of the few materials of choice for biodegradable implants, despite its rapid degradation when used without surface protection treatment. This study presents the effect of carbonation time on the formation of hydrophobic carbonate coatings grown
Monica Popa   +3 more
doaj   +1 more source

Validation by Molecular Dynamics of the Major Components of Sugarcane Vinasse, On a Surface of Calcium Carbonate (Calcite)

open access: yesMolecules, 2021
There is ongoing interest in the alcohol industry to significantly reduce and/or add value to the liquid residue, vinasse, produced after the distillation and rectification of ethanol from sugar cane.
Oscar Eduardo Rojas Álvarez   +3 more
doaj   +1 more source

Mineralogy of interior jewellery ammonites of the Samara region

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2022
Background. Ammonite products are increasingly gaining in popularity. Ammonites are characterised by a variety of colour shades, shapes and sizes, making them suitable for manufacturing a wide range of souvenir and jewellery products.
D. A. Petrochenkov, E. Yu. Baraboshkin
doaj   +1 more source

Application of ASTER Data for Differentiating Carbonate Minerals and Evaluating MgO Content of Magnesite in the Jiao-Liao-Ji Belt, North China Craton

open access: yesRemote Sensing, 2022
Numerous reports have successfully detected or differentiated carbonate minerals such as calcite and dolomite by using the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER).
Young-Sun Son   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy