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Author: engineering

Pre-Submit Integration Tests For Ads-Serving

Nishant Roy | Ads Serving Introduction & Background The ads-serving platform is the highest-scale, highest-complexity, and highest-velocity recommendation service at Pinterest. Our ads business is growing and expanding, and the ads engineering team is iterating quickly to continue to improve the system. Therefore, it is vital to keep the system healthy, in order to protect Pinner experience, business health, and maintain a high developer velocity. Ever since the first ad was shown on Pinterest, all our ads-serving backend services have been…

Pointed tips on aluminum ‘octopods’ increase catalytic reactivity — ScienceDaily

Points matter when designing nanoparticles that drive important chemical reactions using the power of light. Researchers at Rice University’s Laboratory for Nanophotonics (LANP) have long known that a nanoparticle’s shape affects how it interacts with light, and their latest study shows how shape affects a particle’s ability to use light to catalyze important chemical reactions. In a comparative study, LANP graduate students Lin Yuan and Minhan Lou and their colleagues studied aluminum nanoparticles with identical optical properties but different shapes.…

Will Biofuels Drive Innovations in Distributed Generation Equipment? (Part 1)

Can cow manure really help green the world’s electricity grids? Surprisingly, biogas produced from animal manure and other types of organic waste is already being used to generate substantial amounts of electricity and process heat along with other types of energy in Europe, India, and other parts of the world (Fig. 1). 1. Biogas-fueled CHP generating plants can turn nearly any organic waste stream into electricity and process heat. (Credit: GTP Solutions) Equally important, biogas-powered generating plants with outputs ranging…

Going Where No Valve Has Gone Before

At a Glance: The evolution of spacecraft valves has come a long way since they were used in liquid-fueled Saturn V rockets.  Today, spacecraft component manufacturers leverage vertical integration, 3D printing and manufacturing in larger volume to drive down costs of launch vehicle build and integration. For direct acting solenoid valves, the subcomponent designs remain largely unchanged. However, exotic materials are more readily accessible and allow the valves to operate at higher pressures and temperatures while also enabling additional fluid…

How Our Paths Brought Us to Data and Netflix | by Netflix Technology Blog | Sep, 2020

[Chris] Julie and I joined the Streaming DSE team at Netflix a few years ago and have been close colleagues and friends since then. At work, we regularly lean on each other for help based on our respective areas of expertise — I bring my breadth of big data tools and technologies while Julie has been building statistical models for the past decade. Outside of work, we share a love of good food and coffee, exchanging tips on making espresso.…

CEADA Annual Meeting Held – University of Missouri College of Engineering

CEADA scholarship winners Ross Buehre (top), Jake McFail (bottom left) and Shelby Hanes The MU Civil Engineering Academy of Distinguished Alumni (CEADA) held its annual meeting on Sept. 11. This organization is very active in its support of the Department of Civil and Environmental Engineering (CEE). The event was held virtually this year for the safety and health of participants. CEE Department Chair Praveen Edara began the meeting with a department update for the attendees. He mentioned the recent hire…

GMs’ Future EVs to Use Analog Devices’ Wireless Battery-Management System

Analog Devices (ADI) and General Motors have announced development and adoption of the automotive industry’s first wireless battery-management system (wBMS) for production electric vehicles. Set to debut on GM’s future Ultium-powered electric vehicles, the wBMS will be a primary driver of GM’s ability to ultimately power many different types of electric vehicles from a common set of battery components. ADI’s wBMS includes all integrated circuits, hardware, and software for power, battery management, RF communication, and system functions in a single system-level…

New design principles for spin-based quantum materials — ScienceDaily

As our lives become increasingly intertwined with technology — whether supporting communication while working remotely or streaming our favorite show — so too does our reliance on the data these devices create. Data centers supporting these technology ecosystems produce a significant carbon footprint — and consume 200 terawatt hours of energy each year, greater than the annual energy consumption of Iran. To balance ecological concerns yet meet growing demand, advances in microelectronic processors — the backbone of many Internet of…

Meeting the Demands of Today’s Test & Measurement Applications

As in other industries, digitalization is transforming electronic test and measurement. Advances in technologies such as 5G, the industrial Internet of Things (IIoT), Industry 4.0, cloud computing, advanced analytics, and more are driving this accelerating trend. For example, 5G technology plays an important role in virtualization and automation—two long-term trends in test and measurement (T&M). Along with these factors, increased adoption of modular equipment and consumer electronics makes the test and measurement industry more important than ever. As test and…

my intern project using eBPF

Cloudflare’s globally distributed network is not just designed to protect HTTP services but any kind of TCP or UDP traffic that passes through our edge. To this end, we’ve built a number of sophisticated DDoS mitigation systems, such as Gatebot, which analyze world-wide traffic patterns. However, we’ve always employed defense-in-depth: in addition to global protection systems we also use off-the shelf mechanisms such as TCP SYN-cookies, which protect individual servers locally from the very common SYN-flood. But there’s a catch:…