Ciencia Noticias

Las autoridades japonesas dijeron que se vieron obligadas a abandonar el jueves sus planes de enviar drones por segundo día para sondear uno de los reactores dañados en la planta de energía nuclear de Fukushima Daiichi debido a una falla en el equipo.

Difficult-to-cut materials such as titanium alloys, high-temperature alloys, metal/ceramic/polymer-matrix composites, hard and brittle materials, as well as geometrically complex components such as thin-walled structures, micro channels and complex surfaces, are widely used in aerospace community.

Transforming base materials into gold was one of the elusive goals of the alchemists of yore. Now Professor Raffaele Mezzenga from the Department of Health Sciences and Technology at ETH Zurich has accomplished something in that vein. He has not of course transformed another chemical element into gold, as the alchemists sought to do. But he has managed to recover gold from electronic waste using a byproduct of the cheesemaking process.

In March 2023, the US government announced an ambitious new course for its national bio strategy. It’s aptly named “Bold Goals for U.S. Biotechnology and

Un conocimiento sólido de la mecánica y el comportamiento del suelo es uno de los pilares fundamentales de la ingeniería geotécnica.La estabilidad y resiliencia de muchas estructuras geotécnicas modernas, incluidos cimientos de edificios, presas, puentes y terraplenes, dependen de un modelado apropiado basado en mediciones precisas de las propiedades del suelo.

A ship powered by renewable energy, including hydrogen produced onboard, is docked in the southeastern US state of Florida this week as it prepares to finish the last leg of a voyage around the world.

Ya sea que se fume, se coma o se vaporice, el consumo de cannabis se asocia con un mayor riesgo de enfermedad cardíaca, ataque cardíaco y accidente cerebrovascular, según una nueva investigación publicada en la revista revisada por pares de la Asociación Estadounidense del Corazón.

El mundo avanza rápidamente hacia un futuro de energía renovable.Para apoyar la transición, debemos preparar suministros de energía de respaldo para momentos en que los paneles solares y las turbinas eólicas no produzcan suficiente electricidad.

Un equipo de investigación dirigido por los Profs.Zhang Zhefeng y Zhang Zhenjun, del Instituto de Investigación de Metales de la Academia de Ciencias de China, han propuesto una estrategia innovadora para fabricar una aleación de titanio impresa en 3D antifatiga regulando por separado su microestructura y defectos, denominada preparación de fabricación con aditivos netos (NAMP).).

In order to prevent power grid failure in a society where electrification is supplied increasingly by variable sources like solar and wind, researchers in Sweden report the development of artificial intelligence algorithms intended to react swiftly when the network's voltage balance is threatened.

Your next router will know where you're sitting. A team of researchers from two Madrid universities—Polytechnic (UPM) and Carlos III (UC3M)—has developed a prototype router with high positioning accuracy that allows them to know the exact location of a mobile phone.

Federated learning (FL) has emerged as a popular machine learning paradigm which allows multiple data owners to train models collaboratively without sharing their raw datasets. It holds potential for a wide spectrum of analytics applications on sensitive data.

Solar-driven photocatalytic or photoelectrochemical water splitting holds great promise for direct solar-to-hydrogen energy conversion, especially in the context of the carbon-neutral initiative, while its practical applications hinge on significant advances in the scalable production of robust and efficient photoactive films.

Nuestro reciente artículo publicado en Nature Energy relata nuestro primer intento de desarrollar un sistema fotoelectroquímico (PEC) escalable para producir hidrógeno verde.

Multi-junction solar cells, solar cells comprised of many individual semiconductor junctions stacked together, have the potential of outperforming single-junction solar cells both in terms of efficiency and stability. In recent years, material scientists and engineers have been trying to identify viable material combinations for fabricating these solar cells.

Perovskites, a broad class of compounds with a particular kind of crystal structure, have long been seen as a promising alternative or supplement to today's silicon or cadmium telluride solar panels. They could be far more lightweight and inexpensive, and could be coated onto virtually any substrate, including paper or flexible plastic that could be rolled up for easy transport.

Un dron lo suficientemente pequeño como para caber en la mano voló el miércoles dentro de uno de los reactores dañados en la destrozada planta de energía nuclear Fukushima Daiichi con la esperanza de poder examinar algunos de los restos de combustible fundido en áreas donde los robots anteriores no pudieron llegar.

Las baterías de zinc-aire son una alternativa potente y económica que se puede utilizar a pequeña escala para alimentar dispositivos electrónicos o a gran escala para vehículos eléctricos o almacenamiento de energía.Estas baterías funcionan cuando el oxígeno del aire oxida el zinc, pero la dificultad en la activación del oxígeno, que degrada el rendimiento de la batería, ha impedido su amplia adopción comercial.

International flights can transport us to most of the world's major cities within a day or two and later bring us home—often for less than a thousand dollars per seat. This jet-setting, however, comes with a heavy carbon emissions cost. Flying coach from Los Angeles to London adds more carbon into the atmosphere than the average lifetime carbon contribution of those living in many of the world's developing countries.

Imagine wearing a thin flexible sticker that can turn your hand or finger movement into communication without you having to say a word or tap a touch screen. Researchers have developed a new type of wearable sensor that can accomplish this futuristic feat and could open new possibilities for rehabilitation applications and help those with disabilities to communicate more easily.