Results 101 to 110 of about 454,449 (380)

Summary of the Nature and Contents of “The Origin of Rocks and Mineral Deposits – Using Current Physical Chemistry of Small Particle Systems”

open access: yesSubstantia, 2017
The book referred to in this title is a comprehensive interdisciplinary scientific treatise that introduces revolutionary new knowledge achieved by competent use of the scientific method.
John Elliston
doaj   +1 more source

The chemistry and genesis of opaque minerals in kimberlites

open access: yesInternational Kimberlite Conference Extended Abstracts: 1973, 1975
Abstract Detailed electron-microprobe analyses of zonal trends in the spinel mineral group in kimberlites show that the early formed spinels are either highly enriched in the series picrochromite-chromite, or alternatively in the series MgAl2O4FeAl2O4; in both compositional types, progressive enrichment trends induced by solid-liquid or solid-gas ...
openaire   +4 more sources

Sonochemical Functionalization of Glass

open access: yesAdvanced Functional Materials, EarlyView.
A new method for functionalizing glass using ultrasonication of aryl diazonium salts. Aryl radicals generated by ultrasounds react with glass, forming a stable, covalently bonded organic film. The functionalized glass adheres microorganisms such as microalgae, fungi, and bacteria, suggesting potential applications in enzyme production, filtration ...
Tiexin Li   +13 more
wiley   +1 more source

Acid blue 40 dye decolorization using magnetite nanoparticles with reduced graphene oxide and mesoporous silica as Fenton catalysts

open access: yesScientific Reports
Synthetic dyes are predominantly emitted into the eco-environment resulting, in harmful effects on the environment and human. This study presents a new perspective on the mesoporous silica (SBA-16) and reduced graphene oxide (rGO) obtained from rice husk
Nady Fathy   +3 more
doaj   +1 more source

Physical chemistry of charged interfaces: Multiscale modelling and applications to Energy [PDF]

open access: yesL'Actualit{\'e} Chimique, Soci{\'e}t{\'e} chimique de France, 2014, pp.21-28, 2018
We present the advantages of a multiscale modelling strategy for the understanding of systems with charged interfaces. On the one hand, one can simulate a complex system at different levels, depending on the relevant length and time scales for a given physical chemistry problem.
arxiv  

Differences and Commonalities in Physical, Chemical and Mineralogical Properties of Zanzibari Geophagic Soils [PDF]

open access: yes, 2010
The function of human geophagy has long been questioned. We sought to test hypotheses concerning its potential physiological effects through analysis of soils and patterns in geophagy behavior. Eleven samples of geophagic soils consumed by pregnant women
A Allen   +57 more
core   +3 more sources

Shape‐Stabilization of Phase Change Materials with Carbon‐Conscious Poly(hydroxy)Urethane Foams

open access: yesAdvanced Functional Materials, EarlyView.
Poly(hydroxy)urethane (PHU) foam, derivable from carbon dioxide (CO2) and bio‐based resources, is a promising material platform for shape‐stabilizing phase change materials (PCMs). We demonstrate the encapsulation of both paraffins and calcium chloride hexahydrate in PHU foam, achieving 48 stable thermal cycles by introducing 5 wt.% barium carbonate ...
Minjung Lee   +5 more
wiley   +1 more source

Activators of Luminescence in Speleothems as Source of Major Mistakes in Interpretation of Luminescent Paleoclimatic Records [PDF]

open access: yesInt. J. Speleol., 33 (1/4), 2004: 25-33, 2009
This work summarizes the main results of the operation of the International Program Luminescence of Cave Minerals of the commission on Physical Chemistry and Hydrogeology of Karst of UIS of UNESCO in the field of activators of speleothem luminescence.
arxiv  

Lunar igneous rocks and the nature of the lunar interior [PDF]

open access: yes
Lunar igneous rocks are interpreted, which can give useful information about mineral assemblages and mineral chemistry as a function of depth in the lunar interior.
Hays, J. F., Walker, D.
core   +1 more source

The origins and physical roots of life’s dual – metabolic and genetic – nature [PDF]

open access: yes, 2017
This review paper aims at a better understanding of the origin and physical foundation of life’s dual – metabolic and genetic – nature. First, I give a concise ‘top-down’ survey of the origin of life, i.e., backwards in time from extant DNA/RNA/protein ...
De Tiège, Alexis
core   +2 more sources

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