Results 51 to 60 of about 99,379 (196)

Mid amphibolite facies metamorphism of harzburgites in the Neoproterozoic Cerro Mantiqueiras Ophiolite, southernmost Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2003
Valuable information is retrieved from the integrated investigation of the field relationships, microstructure and mineral compositions of harzburgites from the Neoproterozoic Cerro Mantiqueiras Ophiolite. This important tectonic marker of the geological
HARTMANN LÉO A., CHEMALE-JÚNIOR FARID
doaj  

Determination of physicochemical indicators of magma, tectonic setting and mineralization potential of the Cheshmeh Ghasaban gabbro massif, Hamedan

open access: yesJournal of Economic Geology
The formation and mineralization conditions of the Cheshmeh Gasaban gabbroic massif in Hamedan have been studied using the chemistry of biotite and clinopyroxene minerals.
Adel Saki   +2 more
doaj   +1 more source

Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents

open access: yesAdvanced Functional Materials, EarlyView.
A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster   +11 more
wiley   +1 more source

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

open access: yesAdvanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao   +6 more
wiley   +1 more source

Advancements in Hypersaline Wastewater Treatment: The Promise of Quasi‐Liquid Surfaces to Reduce Salt Scaling

open access: yesAdvanced Functional Materials, EarlyView.
Durable quasi‐liquid polymer brush surfaces provide an anti‐scaling strategy for hypersaline brine evaporation and zero‐liquid‐discharge desalination. The smooth, liquid‐like QLS interface suppresses substrate‐side salt nucleation, promotes compact crystallization and dewetting, reduces crystal–surface contact area, and enables low‐adhesion salt ...
Mohammed Imran Khan, Bei Fan
wiley   +1 more source

Sustainable method to extract potassium from K-feldspar using limestone flotation tailings

open access: yesAcademia Engineering
This study explores the potential use of limestone flotation tailings (LFT) for recovering potash values from K-feldspar (K2O, 11.4 wt.%). High-temperature leaching tests of potassium-enriched feldspar powder using various mineral acids reveal
Sandeep Kumar Jena   +3 more
doaj   +1 more source

Mechanically Mutable Matrices: A Hierarchical Investigation of Decellularized Sea Cucumber Collagen as an Adaptable Scaffold Material

open access: yesAdvanced Functional Materials, EarlyView.
Sea cucumber mutable collagenous tissue (MCT) is a remarkable collagen‐based material which can rapidly undergo large changes in stiffness through transiently bound effector proteins. Here, we investigate the hierarchical structure and mechanical response of MCT from Cucumaria frondosa across length scales with a wide range of methods, also exploring ...
Nathalie R. H. Singh   +7 more
wiley   +1 more source

Polymer Substrates for Flexible Sensors: Advances and Contributions to Smart Agriculture

open access: yesAdvanced Functional Materials, EarlyView.
This review comprehensively summarizes recent advances in polymer‐based flexible sensors for smart agriculture, focusing on polymer substrate design, interface engineering, and applications in soil, plant, animal, aquaculture, and post‐harvest monitoring.
Yihui Li   +12 more
wiley   +1 more source

Approach of automatic 3D geological mapping: the case of the Kovdor phoscorite-carbonatite complex, NW Russia

open access: yesScientific Reports, 2017
We have developed an approach for automatic 3D geological mapping based on conversion of chemical composition of rocks to mineral composition by logical computation. It allows to calculate mineral composition based on bulk rock chemistry, interpolate the
A. O. Kalashnikov   +3 more
doaj   +1 more source

Chemical reactivity of alliin and its molecular interactions with the M proteasepro of SARS-CoV-2 [PDF]

open access: yesJournal of the Serbian Chemical Society
In the present work, a computational study of the chemical reactivity of alliin at the X/DGDZVP level of theory (where X is B3LYP, M06, M06L or wB97XD) was performed.
López-Orozco Wendolyne   +4 more
doaj   +1 more source

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