Results 1 to 10 of about 4,204 (206)
Protolysis Reaction on Pyrophyllite Surface Molecular Models: A DFT Study [PDF]
Understanding the mechanisms of mineral dissolution at the atomic scale is crucial for interpreting geochemical processes in soils and sediments, particularly those involving clay minerals.
María Bentabol +3 more
doaj +2 more sources
Vanadium occupation and its leachability differences in trioctahedral and dioctahedral mica. [PDF]
Vanadium in black shale prefers to locate in the octahedron of mica and can be more easily released from trioctahedral mica than dioctahedral mica.
Zheng Q, Zhang Y, Xue N, Liu T, Huang J.
europepmc +4 more sources
The structure, porosity, and functionality of synthesized chitosan-clay nanocomposites (NCs) are examined throughout this work in relation to the initial stoichiometry and octahedral cavity occupation of the clay fraction.
Wael Albouchi +3 more
doaj +1 more source
The dinuclear nickel(II) complex [Ni2LmClO4] + , where Lm represents a 24-membered macrocyclic hexaaza-dithiophenolate ligand, reacts with 5-(4-pyridyl)tetrazole (PyrCN4H) to give the dinuclear complex [Ni2Lm(PyrCN4)]+ . The new complex was both isolated
Sergei V. Voitekhovich +2 more
doaj +1 more source
Structural features of mineral carriers of medicinal substances [PDF]
The aim of the work is to investigation of the structural features of mineral carriers of medicinal substances. Tasks: conduct electron microscopy and study the structural features of mineral sorbents; develop a classification of sorption interaction ...
Bondarev Alexander +6 more
doaj +1 more source
Diagenesis of the Sedimentary Fe–Ni Deposits of Euboea: Evidence Based on Phyllosilicate Mineralogy
A set of samples with different textures from the sedimentary Fe–Ni deposits of Central Euboea, Greece, were studied with XRD and SEM-EDS to investigate the relationships between phyllosilicates present.
Spyros Cheliotis-Chatzidimitriou +2 more
doaj +1 more source
Investigation of Plug Rolling with Stub Mandrel Using the Finite Element Method [PDF]
The study proposed the model of “guide mark” defects formation on the internal surface of pipes, produced on PRM mills of PRP – 140. The research of pipe forming at plug rolling mill with stub mandrel has been carried out; regularities of the ...
D. Pavlov +3 more
doaj +1 more source
AN INVESTIGATION OF POLYCHROME RELIEFS FROM PTOLEMAIC RUINS IN UPPER EGYPT [PDF]
Multiple analytical techniques were applied to testing inorganic pigments and renders on the surviving ruins of the temple of Ptolemy XII (117‒51 BC) at Tell Atrib, Upper Egypt.
Amany BAKR +2 more
doaj +1 more source
Degradation of blue dye waste in Sarong Samarinda production using WO3-bleaching earth (BE) has been conducted. Structural and morphological characterization has conducted using X-ray diffraction (XRD), and Scanning electron microscopy-energy dispersive ...
Noor Hindryawati +5 more
doaj +1 more source
Organic Control of Dioctahedral and Trioctahedral Clay Formation in an Alkaline Soil System in the Pantanal Wetland of Nhecolândia, Brazil. [PDF]
Recent studies have focused on the formation of authigenic clays in an alkaline soil system surrounding lakes of the Nhecolândia region, Pantanal wetland.
Laurent Barbiero +5 more
doaj +1 more source

