Results 21 to 30 of about 636,981 (307)

Catalytic Activity of Thermolyzed [Co(NH3)6][Fe(CN)6] in CO Hydrogenation Reaction

open access: yesMolecules, 2021
Currently, the processes of obtaining synthetic liquid hydrocarbons and oxygenates are very relevant. Fischer-Tropsch synthesis (FTS) is the most important step in these processes. The products of thermal destruction in argon of the mixture [Co(NH3)6][Fe(
Alevtina N. Gosteva   +5 more
doaj   +1 more source

The impact of space flight on survival and interaction of Cupriavidus metallidurans CH34 with basalt, a volcanic moon analog rock [PDF]

open access: yes, 2017
Microbe-mineral interactions have become of interest for space exploration as microorganisms could be used to biomine from extra-terrestrial material and extract elements useful as micronutrients in life support systems.
Bo Byloos   +9 more
core   +2 more sources

Extraction of Bioactive Components from Chamaenerion angustifolium (L.) Scop. with Choline Chloride and Organic Acids Natural Deep Eutectic Solvents

open access: yesMolecules, 2022
Chamaenerion angustifolium (L.) Scop. (fireweed) is a perennial herbaceous plant of the Onagraceae family widely used in folk and scientific medicine. It is a promising source of bioactive components.
Nikita Tsvetov   +3 more
doaj   +1 more source

Geochemistry of As-, F- and B-bearing waters in and around San Antonio de los Cobres, Argentina, and implications for drinking and irrigation water quality [PDF]

open access: yes, 2011
Spring, stream and tap waters from in and around San Antonio de los Cobres, Salta, Argentina, were sampled to characterize their geochemical signatures, and to determine whether they pose a threat to human health and crops.
Aiuppa   +55 more
core   +1 more source

Clay minerals and sedimentary basin history [PDF]

open access: yes, 2005
Clay minerals in the mud and soil that coat the Earth's surface are part of a clay cycle that breaks down and creates rock in the crust. Clays generated by surface weathering and shallow diagenetic processes are transformed into mature clay mineral ...
Merriman, Richard J.
core   +1 more source

Thermal insulation materials on the basis of microsilica [PDF]

open access: yesVestnik MGTU, 2015
The main areas of silica application have been examined in the paper. It has been found that microsilica can be used in manufacture of wollastonite-containing ceramic matrixes and composite materials with expanding shale and nepheline-process waste as ...
Suvorova O.V.   +2 more
doaj  

Screening and Breeding Utilization of Wheat Germplasm Resources Rich in Beneficial Mineral Elements

open access: yesLiang you shipin ke-ji, 2021
Beneficial mineral elements are one of the indispensable nutrients in human body.With the adjustment of diet structure,people’s demand for mineral elements in wheat is becoming stronger and stronger.Therefore,screening wheat germplasm resources with low ...
WANG Wei   +7 more
doaj   +1 more source

Approaches to Active Tourism in the Urals and in Perm Krai [PDF]

open access: yes, 2016
Located in the south of Ural, Perm Krai, apart from mineral resources and well-developed industry, can boast vast areas that lend themselves to active and qualified tourism, with the quality of an amateur sport.
Korolev, Andriej Y.   +3 more
core   +1 more source

Mineral Element Insiders and Outliers Play Crucial Roles in Biological Evolution

open access: yesLife, 2022
The geosphere of primitive Earth was the source of life’s essential building blocks, and the geochemical interactions among chemical elements can inform the origins of biological roles of each element.
Eli K. Moore   +4 more
doaj   +1 more source

COMPUTER MODELLING OF ORDERING OF STRUCTURAL UNITS AND CLUSTERS IN LITHIUM NIOBATE CRYSTALS. [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2011
Modeling of the processes occurring at formation energetically equilibrium oxygen-octahedral clusters in the ferroelectric phase of stoichiometrical of lithium niobate crystal (LiNbO3) is executed at qualitative level.
O.R. Starodub   +4 more
doaj  

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