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Category: Telecommunications Engineering

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…

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…

Cloudflare Automatically Blocks Botnet DDoS Attack Topping At 654 Gbps

On July 3, Cloudflare’s global DDoS protection system, Gatebot, automatically detected and mitigated a UDP-based DDoS attack that peaked at 654 Gbps. The attack was part of a ten-day multi-vector DDoS campaign targeting a Magic Transit customer and was mitigated without any human intervention. The DDoS campaign is believed to have been generated by Moobot, a Mirai-based botnet. No downtime, service degradation, or false positives were reported by the customer. Moobot Targets 654 Gbps towards a Magic Transit Customer Over…

Secondary DNS – Deep Dive

How Does Secondary DNS Work? If you already understand how Secondary DNS works, please feel free to skip this section. It does not provide any Cloudflare-specific information. Secondary DNS has many use cases across the Internet; however, traditionally, it was used as a synchronized backup for when the primary DNS server was unable to respond to queries. A more modern approach involves focusing on redundancy across many different nameservers, which in many cases broadcast the same anycasted IP address. Secondary…

Throughput autoscaling: Dynamic sizing for Facebook.com

Facebook’s web tier is one of the main services that handle HTTP requests from people using our services each time they interact with Facebook. It is a massive global service distributed across multiple data centers throughout the world. Since we have people from all over the world using our services, the load on the web tier varies throughout the day, depending on the number of people using our service at any given time. To manage the load on our services,…

5 Development Platform Keys for Easy Real-Time Audio System Design

Download this article in PDF format. What you’ll learn The importance of a cross-platform design environment How to manage real–time priorities How to optimize performance and debug errors in real-time   Audio systems in consumer electronics and automotive infotainment systems have become increasingly complex because of consumers’ rising demand for premium audio experiences. From perfectly tuned sound to flawless voice recognition, consumer expectations have forced brands to develop new product-differentiating audio features at a pace and scale we’ve never seen…

Production testing with dark canaries

The internet software industry has moved away from long development cycles and dedicated quality assurance (QA) stages, toward a fast-paced continuous-integration/continuous-delivery (CI/CD) pipeline, where new code is quickly written, committed, and pushed to user-facing applications and services. Doing so has dramatically increased iteration speeds, and at LinkedIn, it is not uncommon for new code to be committed and pushed to production within an hour, multiple times a day. While this has been incredibly successful—it has improved developer productivity by allowing…

Migrating cdnjs to serverless with Workers KV

Cloudflare powers cdnjs, an open-source project that accelerates websites by delivering popular JavaScript libraries and resources via Cloudflare’s network. Since our major update in December, we focused on remodelling cdnjs for scalability and resilience. Today, we are excited to announce how Cloudflare delivers cdnjs—a migration to a serverless infrastructure using Cloudflare Workers and its distributed key-value store Workers KV! What is cdnjs and why do I care? For those unfamiliar, cdnjs is an acronym describing a Content Delivery Network (CDN)…