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Engineering News

Automated Canary Analysis at Netflix with Kayenta – Netflix TechBlog – Medium

by Michael Graff and Chris Sanden Today, in partnership with Google, we have open sourced Kayenta, a platform for Automated Canary Analysis (ACA). Kayenta leverages lessons learned over the years of delivering rapid and reliable changes into production at Netflix. It is a crucial component of delivery at Netflix as it reduces the risk from making changes in our production environment. In addition, Kayenta has increased developer productivity by providing engineers with a high degree of trust in their deployments.…

Tumblr Engineering — A Big New Beautiful Future for the Web at Tumblr

As a platform that prides itself on being a home for artists and creatives alike, it only makes sense that we allow our users to fully customize their Tumblrs to fully express themselves. Here at Tumblr, the world is your oyster not only in terms of looks but also in how you create your theme. I wanted to demonstrate how you too can develop a theme using Redux and React. Since there are plenty of docs and tutorials on how…

Researchers develop more comprehensive acoustic scene analysis method

Predictions of sounds were achieved by an improved method developed by an international team of researchers. Credit: IEEE/CAA Journal of Automatica Sinica Researchers have demonstrated an improved method for audio analysis machines to process our noisy world. Their approach hinges on the combination of scalograms and spectrograms—the visual representations of audio—as well as convolutional neural networks (CNNs), the learning tool machines use to better analyze visual images. In this case, the visual images are used to analyze audio to better…

Testing our Confidence: Scaling Software Quality with Automated Testing

As Wayfair’s business has scaled, so too has the size of our engineering teams – not to mention the complexity of the software features we’re building. At the same time, moving quickly in the global tech landscape has never mattered more. As a modern tech company, one simply cannot afford to slow down the rate of feature delivery. While it’s fairly easy to rollback and recover from a broken build, it’s not entirely without pain. As we have more and…

CFRP recycling—into the battery instead of the garbage

The Fraunhofer ICT uses recycled, small chopped carbon fibers (top) to produce bipolar plates (bottom) for batteries and fuel cells. Credit: Fraunhofer ICT Carbon fiber-reinforced plastics are gaining importance as components of aircraft. The trend is increasing the need for sustainable recycling concepts. At the ILA from April 25 to 29, 2018 in Berlin, Fraunhofer will present a technology that converts recycled carbon fibers into materials for batteries and fuel cells. This saves costs, improves the CO2 balance and opens…

Automated lightweight construction reduces weight and costs

The Fraunhofer ENAS manufactures printed circuit boards in screen printing on a flexible plastic film. The tracks transmit electrical impulses – for example, to make LEDs glow. Credit: Fraunhofer ENAS The aircraft of the future flies electrically and autonomously, is feather-light and can be conveniently produced in a fully automated manner. While the electrification and permanent autopilot are still in their infancy, lightweight construction is already indispensable today. Digital manufacturing processes are about to be applied. Fraunhofer will present new…

Fly with individually air-conditioned seats

The Aviation Double Seat features a combination of seat ventilation by means of fans and thermal regulation by seat heating. Credit: Gentherm GmbH In cooperation with its partner Gentherm, Fraunhofer has developed an air-conditioned business class seat (Aviation Double Seat). The seat features a combination of seat ventilation by means of fans and thermal regulation by seat heating. This leads to an optimal temperature control of the seat surface as well as a continuous moisture removal. The result is a…

Sensors in public spaces can help create cities that are both smart and sociable

Overflowing bins are one way to spoil the amenity of public space, but sensors can now alert councils when bins need emptying. Credit: Wikimedia How are smart cities meant to meet citizen needs? Big data from a network of sensors can give managers and planners a real-time, big-picture overview of traffic flows, public transport patronage, and water and power use. However, the needs of people in the city must be met at both the meta and micro levels. To do…

First dynamic spine brace—robotic spine exoskeleton—characterizes spine deformities

The Robotic Spine Exoskeleton consists of two six-degrees-of-freedom parallel-actuated modules connected in series, each with six actuated limbs. Each module controls the translations/rotations or forces/moments of one ring in three dimensions with respect to the adjacent ring. Credit: Sunil Agrawal/Columbia Engineering Spine deformities, such as idiopathic scoliosis and kyphosis (also known as “hunchback”), are characterized by an abnormal curvature in the spine. The children with these spinal deformities are typically advised to wear a brace that fits around the torso…

Adding DNS-Over-TLS support to OpenWRT (LEDE) with Unbound

If you want to skip ahead to instructions, scroll to the next section. But I, like a TLS handshake, am very verbose so please enjoy this opener. Imagine this scenario – I’m at a restaurant and need to have a private phone conversation but unfortunately my phone’s battery is drained. To get around this problem, I borrow my friend’s phone and dial the number – to protect my privacy I walk outside. When I’m done with the call, I come…