نتایج جستجو برای: iron rich laterites

تعداد نتایج: 296373  

Journal: :Construction and Building Materials 2021

This paper presents the results of experimental evaluation curing conditions on microstructure and performance geopolymer binders developed from iron-rich laterite soils. Two calcined laterites namely LB600 LY600 were used as solid precursors in preparation binders. The samples cured at 20, 60 80 °C. FTIR, XRD, EDS DTA/TG to evaluate microstructural properties prepared products. binder was eval...

Journal: :Chemical Geology 2000

Despite the fact that Titanium material has been considered as difficult to cut material, its usage has been increasing day by day in all engineering sectors; wherever criticality is encountered. Many studies are going on in view of increasing tool life at high cutting speed to improve productivity. In this study, attempt has been made to see the effect of iron as a partial substitution  along ...

Journal: :Cleaner materials 2021

This paper investigates the direct transformation of laterites (natural iron-rich aluminosilicates) to cementitious composites with principal mineral phases being Gismondine and Stratlingite. The effects particles size distribution cement content (2 8 wt%) on mechanical properties microstructure laterite-cement are assessed. Four grades granulometry various percentages fine coarse were consider...

Journal: :Geological Magazine 1930

Journal: :Minerals 2022

Different techniques have been combined to identify the structure and chemical composition of siliceous breccia from a drill core nickel laterites in New Caledonia (Tiebaghi mine). XRD analyses show quartz as major phase. Micro-Raman spectroscopy confirmed presence reddish microcrystalline phase with inclusion microparticles iron oxides oxyhydroxide. Lithoclasts present are composed lizardite, ...

Journal: :medical journal of islamic republic of iran 0
hassan rezazadeh from the department of medical elementology and toxicology, hamdard university, new delhi- amir allameh the department of biochemistry, school of medical sciences, tarbiat modarres university, tehran, islamic republic of iran. mohammad athar from the department of medical elementology and toxicology, hamdard university, new delhi-

iron overload is known to occur in the west european and american population due to the consumption of iron-rich diets. on the other hand, genetic disorders leading to iron overload are also known. iron overload leads to increased peroxidation and disruptive disintegration of lipid-rich membranes, and predisposes humans for an enhanced risk of cancer induction. in experimental animals iron over...

Journal: :The Journal of biological chemistry 1981
A Bomford C Conlon-Hollingshead H N Munro

The protein shells of rat tissue ferritins consist of two subunit species (heavy (H) and light (L)) in proportions varying according to the tissue and its iron content. Rat liver and heart ferritins were resolved by electrofocusing into a series of charge isomers that change progressively in H:L subunit ratios along the PI gradient, suggesting that net surface charge is determined by the subuni...

Journal: :iranian journal of blood and cancer 0
somaye kalanaky alireza farsinejad saeede fakharzade mohammad ali karbasian morteza keshavarz azim mehrvar

abstract background: iron overload is a clinical consequence of repeated blood transfusions and causes significant organ damage, morbidity, and mortality in the absence of proper treatment. the primary targets of iron chelators used for treating transfusional iron overload are the prevention of iron ingress into tissues and its intracellular scavenging. the present study was aimed at elucidatin...

Alireza Farsinejad, Azim Mehrvar, Maryam Rahbar, Mohammad Ali Karbasian, Mohammad Faranoush, Morteza Keshavarz, Narjes Mehrvar, Saeede Fakharzade, Somaye Kalanaky,

Abstract Background: Iron overload is a clinical consequence of repeated blood transfusions and causes significant organ damage, morbidity, and mortality in the absence of proper treatment. The primary targets of Iron chelators used for treating transfusional Iron overload are the prevention of Iron ingress into tissues and its intracellular scavenging. The present study was aimed at elucid...

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