source:Compuscript LtdSemiconductor quantum dots (QDs) materials have shown great potential for applications in lighting and display fields due to their wide color gamut, adjustable emission wavelength, high quantum efficiency, high color saturation, and low processing cost. For example, QD materials based on cadmium and perovskite have made remarkable progress, but the use of toxic Cd and Pb has limited their further application.The Restriction of Hazardous Substances (RoHS) regulation clearly limits the use of Cd and Pb in electronic products to less than 100 ppm and 1,000 ppm, respectively....
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2024
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source:EosDrylands cover over 40% of the Earth’s land surface and house more than 2 billion people, many of whom rely on drylands for subsistence needs. Vegetation dynamics in drylands are often characterized by rapid shifts between different vegetation states, with the transitions driven by external pressures such as drought or grazing. Internal feedbacks are important for stabilizing vegetation states, such as when fires in grasslands kill shrub seedlings, thus leaving room and resources for more fire-promoting grasses. Indeed, the conversion of grasslands, frequently stabilized by this fire...
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2024
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source:NININGVolcanoes with iron-rich magmas may hold significant concentrations of rare earth elements (REEs), according to a study published in Geochemical Perspectives Letters.As reported by Eos magazine, laboratory experiments have shown that volcanic pressures and temperatures cause iron oxide-apatite (IOA) deposits to form, splitting magmas into two immiscible melts, one of which is highly enriched in REEs — up to 200 times more concentrated than in the silicate-rich melts.Shengchao Yan, a doctoral student at the Chinese Academy of Sciences and lead researcher on the study, explained tha...
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2024
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source:SMALL CAPSDreadnought Resources (ASX: DRE) is the latest Australian minerals explorer to uncover significant niobium potential as the market sharpens its focus on the critical metal.New exploration undertaken by Dreadnought at the Stinger discovery in Western Australia has confirmed oxide and fresh bedrock niobium mineralisation over approximately 1.2 kilometres of strike that remains open in all directions.The Stinger zone is part of the highly-targeted Gifford Creek carbonatite contained within Dreadnought’s 100%-owned Mangaroon project in WA’s Gascoyne region.Multiple commoditiesCarb...
Release time:
2024
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