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E-Mail IMAGE: SEM micrograph of vertically standing, flat micromirror array with an inset of magnified area. Credit: Hillmer et al. view more Credit: Hillmer et al. Buildings are responsible for 40 percent of primary energy consumption and 36 percent of total CO2 emissions. And, as we know, CO2 emissions trigger global warming, sea level rise, and profound changes in ocean ecosystems. Substituting the inefficient glazing areas of buildings with energy efficient smart glazing windows has great potential to decrease energy consumption for lighting and temperature control. Harmut Hillmer et al. of the University of Kassel in Germany demonstrate that potential in MOEMS micromirror arrays in smart windows for daylight steering, a paper published recently in the inaugural issue of the ....
E-Mail IMAGE: Consuming spoiled beef is dangerous, but there are currently no simple and efficient methods to assess beef freshness. view more Credit: Unsplash Although beef is one of the most consumed foods around the world, eating it when it s past its prime is not only unsavory, but also poses some serious health risks. Unfortunately, available methods to check for beef freshness have various disadvantages that keep them from being useful to the public. For example, chemical analysis or microbial population evaluations take too much time and require the skills of a professional. On the other hand, non-destructive approaches based on near-infrared spectroscopy require expensive and sophisticated equipment. Could artificial intelligence be the key to a more cost-effective way to assess the freshness of beef? ....
E-Mail IMAGE: a) Energy levels used to achieve SCC. b) A schematic diagram of SCC readout. c) The excitation spectrum of the nitrogen-vacancy (NV) center used here at cryogenic temperature of 8?K.. view more Credit: ZHANG Qi et al. The team led by Professor DU Jiangfeng and Professor WANG Ya from the Chinese Academy of Sciences (CAS) Key Laboratory of Microscale Magnetic Resonance of the University of Science and Technology of China put forward an innovative spin-to-charge conversion method to achieve high-fidelity readout of qubits, stepping closer towards fault-tolerant quantum computing. Quantum supremacy over classical computers has been fully exhibited in some specific problems, yet the next milestone, fault-tolerant quantum computing, still requires the accumulated logic gate error and the spin readout fidelity to exceed the fault-tolerant threshold. DU s team has resolved the first requirement in the nitrogen-vacancy (NV) center system [ ....
Grain boundaries (GBs) in perovskite solar cells (PSCs) have been found to be detrimental to the device performance. Scientists in Hong Kong developed a unique approach by modifying the perovskite GBs with flakes of high-mobility 2-D materials, which can conduct holes from the GBs to hole transport layers in the PSCs and make the GBs hole channels in the devices. This work presents a cost-effective strategy for improving the performance of PSCs by using high-mobility 2-D materials. ....
Aves silvestres presas em cativeiro são resgatadas em Piracicaba; autuação foi de R$ 3,5 mil globo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from globo.com Daily Mail and Mail on Sunday newspapers.