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Author: engineering

Researcher collaborates with industry to create design tool for syntactic foams

Syntactic foams, which have been used for years in aerospace and marine applications, are being employed in a wider and wider array of products. Nikhil Gupta, NYU Tandon professor of aerospace and mechanical engineering has partnered with specialty chemical makers Dixie Chemical and Evonik to create a web-based tool that lets product manufacturers create the right kind of syntactic foam for a specific product. Credit: NYU Tandon School of Engineering With a foundation in aerospace and deep-sea applications, syntactic foams…

2017 Year in review: Better global networks | Engineering Blog | Facebook Code

This week we’re publishing a series of posts looking back at the technologies and advancements Facebook engineers introduced in 2017. Read the first part of the series about data centers here, and check back each day to learn about a different part of the stack. Part of what makes our data centers some of the most advanced facilities in the world is the idea of disaggregation — decoupling hardware from software and breaking down the technologies into their core components.…

– Airbnb Engineering & Data Science – Medium

A Structure for Scaling Service Development By Liang Guo, Frank Lin, Junjie Guan Airbnb is moving its infrastructure at an accelerated pace towards a SOA (Service-Oriented Architecture), but moving from a monolithic Rails service towards a SOA while building out new products and features is not without its challenges. In this post, we share what we have designed and built to scale the development of services — using the same number engineer-hours to build more backend services that are more robust, performant,…

Navigating the Engineering Interview Process at Uber & Beyond

As one of the world’s fastest growing companies, Uber is always looking for new engineers to help us make transportation safer and more reliable. To accomplish this, we are developing technologies—from machine learning algorithms and data visualization platforms, to mobile frameworks and self-driving vehicles—at an unprecedented scale. Up for the challenge? If so, your first step (after applying, of course) is to meet with our team and interview to determine if Uber is the right fit for you! Read on…

Distributing Content to Open Connect – Netflix TechBlog – Medium

By Mohit Vora, Andrew Berglund, Videsh Sadafal, David Pfitzner, and Ellen Livengood In previous posts we’ve talked about how we calculate, predict, and use content popularity for Open Connect to maximize the efficiency of our content delivery network and other data science challenges in this space. We also recently talked about improvements we made in the server throughput space. In this blog post, we will dig deeper into how we place content on Open Connect Servers, (also referred to as…

Submitting Your Links to Multiple Social Bookmarking Sites

To make the most of social bookmarking regarding building backlinks and increasing your site’s SEO, you need to be an active and contributing member of your network. There are times, though, when you simply cannot afford to manage your bookmarks or participate in discussions for several consecutive days, or even to write new articles since you may be leaving for vacation or having other offline issues keeping you busy. Thankfully, to an extent and for a limited period, your bookmarks…

Why Some Phishing Emails Are Mysteriously Disappearing

Phishing is the absolute worst. Unfortunately, sometimes phishing campaigns use Cloudflare for the very convenient, free DNS. To be clear –– there’s a difference between a compromised server being leveraged to send phishing emails and an intentionally malicious website dedicated to this type of activity. The latter clearly violates our terms of service. In the past, our Trust and Safety team would kick these intentional phishers off the platform, but now we have a new trick up our sleeve and…

Scientists design an instrument to identify unexploded artillery shells

Credit: University of Helsinki Society faces threats through the malicious use of chemical, biological, radiological, nuclear and/or explosive (CBRNE) materials. The detection of illicit trafficking or other criminal acts, as well as many security and safety applications, call for novel material analysis techniques and instruments. These detection systems should be non-destructive but still be able to detect and identify the threat objects, even from inside a shielding or masking enclosure. Active interrogation methods that use penetrative particle beams can reveal…

Scientists print 3-D models of children’s hearts for urgent operations

3-D model of a children’s heart. Credit: Tomsk Polytechnic University Scientists from Tomsk Polytechnic University are creating 3-D-printed models of children’s hearts based on magnetic resonance imaging (MRI) of real patients. These models are used as simulators for cardiac surgeons to plan forthcoming operations. The first 3-D-models of adult hearts were printed at TPU last summer. Now, TPU scientists will start 3-D printing of children’s hearts. Tomsk cardiologists have wide variety of patients, including elderly people who have lived to…