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Author: engineering

Migrating Messenger storage to optimize performance | Engineering Blog | Facebook Code

More than a billion people now use Facebook Messenger to instantly share text, photos, video, and more. As we have evolved the product and added new functionality, the underlying technologies that power Messenger have changed substantially. When Messenger was originally designed, it was primarily intended to be a direct messaging product similar to email, with messages waiting in your inbox the next time you visited the site. Today, Messenger is a mobile-first, real-time communications system used by businesses as well…

Collaborative aerial robotic workers

Credit: AEROWORKS With the innovative aerial robotic team developed by the EU-funded AEROWORKS project, users can safely inspect infrastructure and perform maintenance tasks using autonomous drones. The ageing infrastructure found in both developing and developed countries, coupled with the gradual expansion of distributed installations, means the costs of inspection and repair has grown incessantly. To address this critical need, highly automated, efficient and reliable solutions are required to not only reduce costs, but also minimise risks to personnel and the…

Electronic wool to take wearable tech from the catwalk to your wardrobe

Sandwiching doped zine sulphide between graphene in textiles can create glowing clothes. Credit: Dr Elias Torres Alonso, University of Exeter Engineers are threading circuitry into clothes to create comfortable devices that could make electronic fashion the future of the textiles industry. Smart textiles, where electronics are incorporated into fabrics, have been around for some time, from sensor-laden shirts that keep you cool, to dresses packed with LEDs. Despite these innovations, even the most determined shopper would struggle to find this…

The discrepancy between mathematical proofs, algorithms, and their implementations in control systems

Engineers work in quantifiable realism—an object exists and can be measured. Sometimes, though, the certainty of the object and how it will behave wavers. Researchers from the Automatic Control and System Dynamics Laboratory at the Technische Universität Chemnitz in Germany are starting to close the gap between reality and mathematical uncertainty. They published an analysis of the discrepancy between mathematical proofs, algorithms, and their implementations in control systems with real, measurable outcomes. Their work appears in the July issue of…

A new way to improve automated systems

Researchers from Zhejiang University in China have developed a new way to boost the performance of automated systems such as energy plants, airplanes and electronics. The researchers published their method in the July issue of IEEE/CAA Journal of Automatica Sinica (JAS), a joint publication of the Institute of Electrical and Electronic Engineers (IEEE) and the Chinese Association of Automation (CAA). Automated systems employ model predictive control to efficiently use power. The method analyzes current behaviors and time frames to predict…

Russian space experiments lead to a new 3-D bioprinting technique

Schematic image of an experimental setup with a “magnetic well” trap for holding bio-objects. Credit: Vladislav A Parfenov et al // Biofabrication, 2018 Thanks to magnetic levitation research in conditions of microgravity, scientists have developed a new technology for 3-D printing of biological tissues. In the future, this technology will help to create radiation-sensitive biological constructs and repair damaged tissues and human organs. The results are published in Biofabrication. There are many methods of 3-D bioprinting. Most of them use…

Engineer to combine math, machine learning and signal processing to lay groundwork for high-resolution microscope

Engineers at Washington University in St. Louis are investigating new techniques that could lead to better, more precise microscopes. Credit: Washington University in St. Louis Like our eyes, microscopes are limited in what they can see because of their resolution, or their ability to see detail. The detail, or information, from the object is there, but some of it gets lost as the light reflecting off of the object moves through the air. Ulugbek Kamilov, an engineer in the School…

Migrating Messenger storage to optimize performance – Facebook Code

More than a billion people now use Facebook Messenger to instantly share text, photos, video, and more. As we have evolved the product and added new functionality, the underlying technologies that power Messenger have changed substantially. When Messenger was originally designed, it was primarily intended to be a direct messaging product similar to email, with messages waiting in your inbox the next time you visited the site. Today, Messenger is a mobile-first, real-time communications system used by businesses as well…

Major series of review articles outlines past, present, and future of searching for life on other planets — ScienceDaily

If you’re looking for a manual on the hunt for alien life, you’re in luck. Some of the leading experts in the field, including a UC Riverside team of researchers, have written a major series of review papers on the past, present, and future of the search for life on other planets. Published in Astrobiology, the papers represent two years of work by the Nexus for Exoplanet Systems Science (NExSS), a NASA-coordinated research network dedicated to the study of planetary…

lessons from using external libraries at Coursera

By Yash Kshirsagar, Austin Greene In this post, we’ll look at why it sometimes make sense to buy new features rather than build them ourselves, and our key takeaways for other engineering teams who are weighing this decision. At Coursera, we aspire to build technologies that lead to innovative pedagogical experiences and transformative learning. Most recently, the Partner Experience Engineering team has built several high-touch UI features on the course authoring platform to provide our partners with a better authoring…