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Category: Computer Engineering

How a slender, snake-like robot could give doctors new ways to save lives

Professor Jessica Burgner-Kahrs Credit: Nick Iwanyshyn You might call it “zoobotics.” Jessica Burgner-Kahrs, the director of the Continuum Robotics Lab at U of T Mississauga, and her team are building very slender, flexible and extensible robots, a few millimeters in diameter, for use in surgery and industry. Unlike humanoid robots, so-called continuum robots feature a long, limbless body—not unlike a snake’s—that allows them to access difficult-to-reach places. Consider a neurosurgeon who needs to remove a brain tumor. Using a traditional,…

Improving iOS Intangibles with Tactical | by Alaina Kafkes | May, 2021

Photo by Arnel Hasanovic on Unsplash In the days of lore and legend that precede my employment, Medium operated under the decentralized organizational philosophy of holocracy. Though leadership has long since shifted to a more hierarchical structure, vestiges of holocracy lurk in unexpected places. One such remnant is iOS tactical, a (bi)weekly gathering of iOS engineers (for more details, jump to “What’s in a tactical?”). Despite its arcane origins, tactical is by no means obsolete: it remains instrumental to building…

Eco-friendly device detects real-time pipe damage

Dr Sarah Guerin, a postdoctoral researcher at the Department of Physics and the Bernal Institute in UL Credit: Sean Curtin/True Media A researcher at University of Limerick has developed a low-cost, environmentally friendly sensor that can detect damage in pipelines and could save water as a result. The damage detection sensor uses highly sensitive, eco-friendly crystals that generate an electrical signal in response to a leak. It is the first validation of these biological crystals for real world applications, according…

Highly available and highly scalable Cloudflare tunnels

Starting today, we’re thrilled to announce you can run the same tunnel from multiple instances of cloudflared simultaneously. This enables graceful restarts, elastic auto-scaling, easier Kubernetes integration, and more reliable tunnels. What is Cloudflare Tunnel? I work on Cloudflare Tunnel, a product our customers use to connect their services and private networks to Cloudflare without poking holes in their firewall. Tunnel connections are managed by cloudflared, a tool that runs in your environment and connects your services to the Internet…

Theoretical method can make objects invisible to a thermal camera, or mimic a different object — ScienceDaily

Can you feel the heat? To a thermal camera, which measures infrared radiation, the heat that we can feel is visible, like the heat of a traveler in an airport with a fever or the cold of a leaky window or door in the winter. In a paper published in Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, an international group of applied mathematicians and physicists, including Fernando Guevara Vasquez and Trent DeGiovanni from the University of…

Spotify Wins CNCF’s Top End User Award and Toots Own Horn About It : Spotify Engineering

May 11, 2021 Published by Dave Zolotusky, Principal Engineer & CNCF Technical Oversight Committee Representative Last week, Spotify won an award — and we’re not playing it cool. We tweeted. We bragged on LinkedIn. Our internal Slack is alive with emoji and exclamation points. We’re really very proud of this one. The award is Cloud Native Computing Foundation’s Top End User Award, announced at last week’s KubeCon + CloudNativeCon. Voted on by the 140+ organizations in…

Improving health by improving water filtration

Professor Baolin Deng A research team led by Mizzou Engineers recently published an article on how to potentially remove arsenic from ground water more efficiently with less expense for household use. Professor Baolin Deng, with lead author Zhengyang “Philip” Wang, an MU doctorial graduate, produced a proof-of-concept over-the-counter water filter that uses a new mass re-equilibrium process to remove arsenic from water. The filter uses two materials that allow toxic arsenic to more quickly transfer between iron-containing carbons that have…

Engineered noise to reduce bird-structure collisions

Timothy Boycott readies a drone for an Acoustic Lighthouse calibration flight. The two colored balls are a meter apart. He flew the drone and worked the digitized position of the balls into software that worked out real distances of birds approaching the communications tower. Credit: The College of William & Mary The Delmarva Peninsula, which includes Virginia’s Eastern Shore, is the avian version of a southbound interstate during the fall migration of raptors and songbirds. “It’s a geographic area that…

Designing the new Cloudflare Web Application Firewall

The Cloudflare Web Application Firewall (WAF) protects websites and applications from malicious traffic attempting to exploit vulnerabilities in server software. It’s a critical piece of the broader security posture of your application. With that in mind, we made sure improvements to the Web Application Firewall dashboard experience made it easier to enable the WAF and configure rules to match the specific requirements of an application. In this post, I’ll share parts of the process we followed and the rationale behind…

Shallow Mirror. Enhancement to Kafka MirrorMaker to… | by Pinterest Engineering | Pinterest Engineering Blog | May, 2021

Henry Cai | Software Engineer, Data Engineering Pinterest uses Kafka as the backbone for data transportation. As a part of our infrastructure, Kafka MirrorMaker v1 is used to replicate traffic among different Kafka clusters spread across multiple regions. Kafka MirrorMaker is a powerful tool to replicate/aggregate data between different Kafka clusters. Figure-1 shows a typical setup to use the MirrorMaker to replicate traffic between two or more regions. Figure-2 shows how one MirrorMaker v1 cluster works in a multi-node setup.…