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In an international collaboration including EPFL, scientists have achieved giant nonlinearity of UV hybrid light-matter states up to room temperature in a waveguide made of AlInGaN, a wide bandgap semiconductor. The achievement paves the way for new devices in ultrafast chemical and biochemical spectroscopy.
COVID-19 caused a 30% fall in electronic and electrical equipment sales in low- and middle-income countries but only a 5% fall in high-income countries, intensifying the north-south digital divide, the UN says. Sales of heavy appliances like refrigerators fell hardest (6-8%) while laptops, cell phones and gaming equipment defied the general trend, rising in high-income countries and on a global basis, but dropping in low- and middle-income countries.
Credit: Tokyo Tech Thermotherapy or heat treatment can help in treating lesions and other tissue injuries. For example, chemotherapy or radiotherapy, when combined with thermotherapy, kills tumorous cells more effectively. Thermotherapy is considered a promising approach for treating internal lesions, but the advancement in the field depends on the availability of patient-friendly heat-inducing devices capable of rapidly increasing the temperature of target tissues. Current clinical practices around thermotherapy majorly employ heat-generating devices that are probed inside the human body or ...
Credit: Carnegie Mellon University and Northeastern University Batteries have come a long way since Volta first stacked copper and zinc discs together 200 years ago. While the technology has continued to evolve from lead-acid to lithium-ion, many challenges still exist--like achieving higher density and suppressing dendrite growth. Experts are racing to address the growing, global need for energy-efficient and safe batteries. The electrification of heavy-duty vehicles and aircraft requires batteries with more energy density. A team of researchers believes a paradigm shift is necessary to mak...
Credit: SUTD Researchers from the Singapore University of Technology and Design (SUTD) have developed novel techniques, known as Automated Fibre Embedding (AFE), to produce complex fibre and silicone composite structures for soft robotics applications. Their work was published in IEEE Robotics and Automation Letters. Many soft robot components, including sensors and actuators, utilise embedded continuous fibres within elastomeric substrates to achieve various functionalities. However, manual embedding of continuous fibres in soft substrates is challenging due to the complexities involved in ...