source:NatureAn array of 30 lasers that acts as a single light source represents a key step towards the development of large-scale, high-powered lasers on a microchip1.Microchip lasers are tiny devices found in items ranging from computer mice to mobile phones. The power emitted by a single such laser is low. Arrays of lasers are typically more powerful than individual ones, but it has been difficult to produce an array of chip-based lasers that emit light waves that oscillate in step. Such synchronized, or ‘coherent’, light is a key property of a laser beam.Mordechai Segev at the Technion–Isr...
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2021
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source:Mirage NewsCase Western Reserve scientists lead National Science Foundation-funded investigation into novel process for recovering critical metals from phosphate miningA Case Western Reserve University chemical engineer is leading a team investigating novel methods to mine valuable metals from an unexpected source: phosphate ore used for fertilizer and other products.These metals, known as rare earth elements and found in phosphate and other rocks, are a vital component in wind turbines, electric vehicles and smart phones, but are now mostly imported from China.The United States mines a...
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2021
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source:financial postLONDON and VANCOUVER, British Columbia, Sept. 23, 2021 (GLOBE NEWSWIRE) — Mkango Resources Ltd (AIM / TSX-V: MKA) (the “Company” or “Mkango”), is pleased to announce that the management team of Mkango, as well as leading Malawian geotechnical engineering firm, Geoconsult Limited, and Zutari Limited, a geotechnical engineering firm which is based in South Africa, are on site at the Songwe Hill Rare Earths development project to commence a major geotechnical drilling and pitting program.The geotechnical test work program will obtain samples from approximately 150 five-metre-...
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2021
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source:EurekAlertAn electrochemical approach developed at KAUST produces molecular-sieving membranes that could enable a cheap energy-efficient separation of light hydrocarbons, such as olefins and paraffins. This separation, critical for the petrochemical industry, usually relies on extremely energy-intensive processes, such as distillation.Membrane-based strategies have emerged as promising alternatives to heat-driven separation approaches. Existing polymer-based membranes are not selective enough for hydrocarbon separation and also undergo plasticization, a structural change that alters the...
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2021
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