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Author: engineering

Mizzou Engineering lighting the way to safer driving

Faculty members Henry Brown, Carlos Sun and Praveen Edara and doctoral students Sandy Zhang and Zhu Qing combined field and simulator studies on the effectiveness of four light-color configurations — amber/white, green only, green/amber and green/white — in catching driver attention and preventing collisions. Photo courtesy of Henry Brown. Sometimes, it’s what you don’t find that turns out to be important. A team of MU Civil and Environmental Engineering researchers discovered as much when they studied response to different types…

Scaling Software Deployment Automation – Wayfair Tech Blog

Continuous Integration and Continuous Deployment (CI/CD) are industry standard, best practices for web-scale software engineering. Wayfair has practiced CI for well over a decade, although the ways in which we have performed it have changed over time. I’m here to share with you the system we have built to coordinate our deploys over the past few years, and how our processes have evolved for deploys at scale. As a consideration for this discussion, it’s worth noting that Wayfair has historically…

Not All Heroes Wear Capes

To kick-off Crypto Week 2019, we are really excited to announce a new solution to a long-standing problem in cryptography. To get a better understanding of the technical side behind this problem, please refer to the next post for a deeper dive. Everything from cryptography to big money lottery to quantum mechanics requires some form of randomness. But what exactly does it mean for a number to be randomly generated and where does the randomness come from? Generating randomness dates…

Inside the Entropy

Randomness, randomness everywhere;Nor any verifiable entropy. Generating random outcomes is an essential part of everyday life; from lottery drawings and constructing competitions, to performing deep cryptographic computations. To use randomness, we must have some way to ‘sample’ it. This requires interpreting some natural phenomenon (such as a fair dice roll) as an event that generates some random output. From a computing perspective, we interpret random outputs as bytes that we can then use in algorithms (such as drawing a lottery)…

Cutting potentially harmful chemicals like PFAS from consumer goods — ScienceDaily

Human exposure to unnecessary and potentially harmful chemicals could be greatly reduced if manufacturers add chemicals only when they are truly essential in terms of health, safety and functioning of society. That’s the conclusion of a study published today in Environmental Science: Processes & Impacts, a peer-reviewed journal published by the Royal Society of Chemistry. In this study, researchers propose a framework based on the concept of “essential use” to determine whether a chemical is really needed in a particular…

Tiny probe that senses deep in the lung set to shed light on disease

This hair-sized probe can measure key indicators of tissue damage deep in the lung. Credit: Michael Tanner, Herriot-Watt University and the University of Edinburgh. A hair-sized probe that can measure key indicators of tissue damage deep in the lung has been developed by scientists. The new technology could pave the way for accurate monitoring of tissue in areas where existing technologies cannot reach. Experts say the probe can pick up tiny changes in tissue health and could improve how patients…

Welcome to Crypto Week 2019

The Internet is an extraordinarily complex and evolving ecosystem. Its constituent protocols range from the ancient and archaic (hello FTP) to the modern and sleek (meet WireGuard), with a fair bit of everything in between. This evolution is ongoing, and as one of the most connected networks on the Internet, Cloudflare has a duty to be a good steward of this ecosystem. We take this responsibility to heart: Cloudflare’s mission is to help build a better Internet. In this spirit,…

Security Compliance at Cloudflare

Cloudflare believes trust is fundamental to helping build a better Internet. One way Cloudflare is helping our customers earn their users’ trust is through industry standard security compliance certifications and regulations. Security compliance certifications are reports created by independent, third-party auditors that validate  and document a company’s commitment to security. These external auditors will conduct a rigorous review of a company’s technical environment and evaluate whether or not there are thorough controls – or safeguards – in place to protect…

A free Argo Tunnel for your next project

Argo Tunnel lets you expose a server to the Internet without opening any ports. The service runs a lightweight process on your server that creates outbound tunnels to the Cloudflare network. Instead of managing DNS, network, and firewall complexity, Argo Tunnel helps administrators serve traffic from their origin through Cloudflare with a single command. We built Argo Tunnel to remove the burden of securing and connecting servers to the Internet. This new model makes it easier to run a service…

a scene-based complementary recommendation system

Eric Kim & Eileen Li | Visual Search On the Visual Search team at Pinterest, we’re constantly working on ways to help people discover new ideas visually, even when they don’t have the words to describe what they’re looking for. In a traditional image search system, the objective is to return results that are visually similar to a query image, however we’re working with a visual discovery engine where we need to identify and return visual components from a broader…