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Keeping the costs of superconducting magnets down using ultrasound

 E-Mail IMAGE: Magnesium diboride is a promising superconducting material with various applications (see fig. on the left). Finding affordable ways to produce improved versions of it is essential. Ultrasonication of magnesium diboride. view more  Credit: Shibaura Institute of Technology Superconductivity already has a variety of practical applications, such as medical imaging and levitating transportation like the ever-popular maglev systems. However, to ensure that the benefits of applied superconductors keep spreading further into other technological fields, we need to find ways of not only improving their performance, but also making them more accessible and simpler to fabricate. In this regard, magnesium diboride (MgB

Pillarene hybrid material shows enhanced tunable multicolor luminescence and sensing ability

 E-Mail IMAGE: Schematic illustration of the synthesis of PHM, the proposed fluorescence tuning mechanisms, and the tunable luminescent responses of PHM toward different external stimuli. view more  Credit: ©Science China Press Organic luminescent materials have been highlighted as an exciting research topic owing to their prominent potentials in light-emitting diodes, fluorescent sensors, optoelectronic devices, in vivo imaging, anti-counterfeiting, data storage, and information encryption. However, applications of tunable fluorescent materials in the solid states have been largely hampered because these luminescent systems generally require time-consuming organic synthesis procedures and suffer from reduced photoluminescence (PL) owing to the notorious aggregation caused quenching. Aggregation-induced emission (AIE) has proved a powerful antidote for the universal self-quenching problems in the field of organic luminescent materials. Inspired by the enhanced luminesc

Experts reduce search times for novel high-entropy alloys 13,000-fold using Cuckoo Search

 E-Mail IMAGE: A major roadblock to computational design of high-entropy alloys has been removed, according to scientists at Iowa State University and Lehigh University. Engineers from the Ames Lab and Lehigh University s. view more  Credit: Ames Laboratory, U.S. Department of Energy A major roadblock to computational design of high-entropy alloys has been removed, according to scientists at Iowa State University and Lehigh University. Engineers from the Ames Lab and Lehigh University s Department of Mechanical Engineering and Mechanics have developed a process that reduces search time used for predictive design 13,000-fold. According to Ganesh Balasubramanian, an associate professor at Lehigh, the goal of the team s research was to accelerate the computational modeling of complex alloys. The tools available for creating random distribution of atoms in materials simulation models, he says, have been used for many, many years now and are limited in their reach for fast

Energy harvesting made possible with skin temperature

 E-Mail IMAGE: Conceptual illustration of a compliant TEG with soft electrodes and soft heat conductors (s-HCs) for self-powered circuit applications. The left inset is a photograph of bismuth telluride (Bi2Te3)-based thermoelectric (TE). view more  Credit: Korea Institute of Science and Technology(KIST) A thermoelectric device is an energy conversion device that utilizes the voltage generated by the temperature difference between both ends of a material; it is capable of converting heat energy, such as waste heat from industrial sites, into electricity that can be used in daily life. Existing thermoelectric devices are rigid because they are composed of hard metal-based electrodes and semiconductors, hindering the full absorption of heat sources from uneven surfaces. Therefore, recent studies were actively conducted on the development of flexible thermoelectric devices capable of generating energy in close contact with various heat sources such as human skins and hot w

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