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Category: Mechanical Engineering

Drone Deliveries to Hospitals in Rwanda » Curious Cat Science and Engineering Blog

Drone Deliveries to Hospitals in Rwanda Posted on June 25, 2017  Comments (0) Partnering with the Government of Rwanda, Zipline serves 21 hospitals nation-wide. They provide instant deliveries of lifesaving blood products for 8 million Rwandans. Their drones are tiny airplanes (instead of the more common tiny helicopter model). Supplies are delivered using parachute drops from the drone. Landings are similar to landings on aircraft carriers (they grab a line to help slow down the drone) and, in a difference…

Getting to Know Qingbo Hu

Prior to joining LinkedIn as a full-time employee, Qingbo completed an internship with us on the Analytics Data Mining team. He has also interned with Walmart’s e-commerce unit on the SEO team. He holds a Ph.D. in computer science from the University of Illinois at Chicago.   What are some of the coolest projects that you and your team have been working on?Among all the projects my team and I have worked on, I want to highlight three of them.…

Equipping form with function

The mechanisms for a waving wind-up toy is adjusted to fit the shape of a turtle. Credit: IST Austria Common toys such as steerable cars or waving wind-up figures are available as 3D-printable models, which also contain their mechanical components. However, these mechanical structures are optimized to fit exactly one particular shape of the toy. If designers want to reuse such a mechanism with different shapes, the necessary manual adjustments to the individual components are often unmanageable for non-experts, in…

Researchers develop landmark achievement in walking technology

Human-in-the-loop optimization combines a software algorithm with versatile emulator hardware to automatically identify optimal assistance strategies for individuals. Credit: Kirby Witte, Katie Poggensee, Pieter Fiers, Patrick Franks and Steve Collins Researchers at the College of Engineering at Carnegie Mellon University have developed a novel design approach for exoskeletons and prosthetic limbs that incorporates direct feedback from the human body. The findings were published this week in Science. This technique, called human-in-the-loop optimization, customizes walking assistance for individuals and significantly improves…

Airbus and Boeing eye lucrative maintenance market

Airbus and Boeing are both looking to target the lucrative maintenance market in the coming years Airbus and Boeing wheeled out the usual round of order announcements at the Paris Air Show on Wednesday, but alongside the big ticket purchases, the aerospace rivals are also eyeing the lucrative maintenance and servicing market as they seek to boost growth. Boeing finalised an order for three 787 Dreamliners to Israeli carrier El Al and inked a memorandum of understanding with leasing company…

Join us for @Scale 2017! | Engineering Blog | Facebook Code

The 2017 @Scale Conference will take place on August 31 at the San Jose Convention Center. This year’s invite-only event will feature tech talks from leading companies building technology at scale — sharing innovative and scalable approaches to data management, developer tools, site reliability, video, machine learning, and more. Building applications and services that scale to millions or even billions of people presents a complex set of engineering challenges, many of them unprecedented. The @Scale community is focused on bringing…

EU unveils plans to regulate drones by 2019

The EU aims to have the regulatory framework for drone monitoring functioning by 2019, with basic services like registration and e-identification The EU unveiled a blueprint to safely regulate drone traffic in Europe by 2019 in order to tap the growing commercial potential for unmanned aircraft technology. The blueprint from the European Commission, the EU executive, covers allowing drones to operate in high density under the supervision of fleet operators. “Drones mean innovation, new services for citizens, new business…

Unlocking Test Performance — Migrating from Mocha to Jest

We’d been using Mocha at Airbnb since September 2013, but due to increasing growing pains, we’ve recently migrated from Mocha to Jest. The migration actually turned out to require minimal changes to our tests and infrastructure, and provided a myriad of benefits. Minimal Changes to Tests We’ve put significant effort into ensuring that our tests follow best practices and a fairly strict coding style. This has helped us to mitigate flakiness and enable cross team collaboration, because tests look the same…

Data @Scale 2017 Recap | Engineering Blog | Facebook Code

On Thursday June 8th, we welcomed 350 engineers to Seattle for the 3rd consecutive year of Data @Scale. In addition to focusing on the challenges of building services and solutions for large-scale storage systems and analytics, this year’s speakers from Facebook, Google, LinkedIn, Microsoft, Pinterest, Uber, and Yandex examined the ways in which Big Data is transforming machine learning, even as new machine learning techniques are leading to an evolution in infrastructure, hardware engineering, and data center design. In advance…

Introducing Highlights – Several People Are Coding

Since launching in 2013, Slack has helped millions of users across hundreds of thousands of teams communicate more efficiently, effectively, and transparently. But as Slack lowers the barriers to communicating internally, the volume of communication that results can be overwhelming. McKinsey estimates that knowledge workers spend 28% of their time managing digital information; accordingly, proactively helping users combat information overload is one of the top priorities of Slack’s Search, Learning, and Intelligence (SLI) group in New York City. As a…