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Category: Computer Engineering

Technology increases the sensitivity of infrastructural sensors by more than 50 times

Technology from the Public University of Navarre monitors the structural health of infrastructure (bridges, viaducts, oil pipelines, gas pipelines, etc.) and can be used in intensity-based optical sensors that modify the amount of light in the system in the presence of physical as well as chemical changes, as explained in Sergio Rota’s Ph.D. thesis read at the Public University of Navarre (NUP/UPNA). “Ever since fibre optics burst onto the scene in telecommunications, many developments based on its properties have emerged,”…

Internet Security Isn’t Child’s Play

Full disclosure:  my wife and I have never had children.  The closest we have come to full-time responsibility for someone younger than 80 was when our ten-year-old nephew came to stay with us for part of the summer of 2013.  So what I have to say about the hazards of buying smart Internet-connected toys for your kids is, from my point of view, entirely hypothetical and untouched by the seasoning of personal experience.  Nevertheless, it’s a new kind of problem…

New gesture control technology that can turn everyday objects into remote controls could revolutionise how we interact with televisions, and other screens — ScienceDaily

Imagine changing the channel of your TV simply by moving your cup of tea, adjusting the volume on a music player by rolling a toy car, or rotating a spatula to pause a cookery video on your tablet. New gesture control technology that can turn everyday objects into remote controls could revolutionise how we interact with televisions, and other screens — ending frustrating searches for remotes that have slipped down the side of sofa cushions. In a paper — ‘Matchpoint:…

A New Cybersecurity Strategy for Europe

October is European Cybersecurity Month, an annual advocacy campaign to raise awareness of cyber risks among citizens and businesses, and to share best practices in cybersecurity. This year’s campaign was launched at an event in Estonia, a country which both holds the current Presidency seat of the European Council and is well known as being highly cyber aware and digitally savvy. It is fitting, therefore, that it is under Estonia’s Presidency that the European Commission announced a number of initiatives…

Serving 100 Gbps from an Open Connect Appliance – Netflix TechBlog – Medium

By Drew Gallatin In the summer of 2015, the Netflix Open Connect CDN team decided to take on an ambitious project. The goal was to leverage the new 100GbE network interface technology just coming to market in order to be able to serve at 100 Gbps from a single FreeBSD-based Open Connect Appliance (OCA) using NVM Express (NVMe)-based storage. At the time, the bulk of our flash storage-based appliances were close to being CPU limited serving at 40 Gbps using single-socket…

Physical abuse and punishment impact children’s academic performance — ScienceDaily

A Penn State researcher and her collaborator found that physical abuse was associated with decreases in children’s cognitive performance, while non-abusive forms of physical punishment were independently associated with reduced school engagement and increased peer isolation. Sarah Font, assistant professor of sociology and co-funded faculty member of the Child Maltreatment Solutions Network, and Jamie Cage, assistant professor in Virginia Commonwealth University’s School of Social Work, found that children’s performances and engagement in the classroom are significantly influenced by their exposure…

UV-irradiated amorphous ice behaves like liquid at low temperatures — ScienceDaily

Ice analogs mimicking interstellar ice behave like liquids at temperatures between -210°C and -120°C according to Hokkaido University researchers. This liquid-like ice may enhance the formation of organic compounds including prebiotic molecules and the accretion of dust to form planets. Molecular bonds in the ice are severed when irradiated by ultraviolet light inside interstellar molecular clouds, facilitating the formation of complex organic substances including prebiotic molecules. Thus, scientists believe interstellar ice to be “cradles” of organic compounds, but little has…

Let’s Encrypt & App Engine, pt. 2 – Square Corner Blog – Medium

The easier way to renew Let’s Encrypt certificates on an app engine site For more background on using Let’s Encrypt with Google’s App Engine, read the original post Setting up https for your website When it came time to renew my Let’s Encrypt certificates for Google’s App Engine, I wanted to see whether I could improve the process. For my first attempt, I tried out the DNS verification method. I updated the appropriate TXT records for my domain, but either wasn’t…

Analyzing distributed trace data – Pinterest Engineering – Medium

Brittany Herr | Pinterest engineering intern Naoman Abbas | Pinterest engineer, Visibility Earlier this year we open sourced Pintrace, a distributed tracing pipeline. A trace follows a request as it moves through a backend, tracking where and how it spends its time. Traces are made up of spans, each of which represents an operation. At Pinterest, there are tens of services and hundreds of network calls per-trace. The information from distributed tracing provides deep visibility into what goes on in our…

Handling System Failures during Payment Communication

Handling system failures during payment processing requires real-time identification of the issues in addition to offline detection, with the goal of eventual consistency. No matter what goes wrong, our top priority is to make sure that customers receive service for which they’ve been charged, and aren’t charged for service they haven’t received. Accurate payment processing is a crucial element in being worthy of trust, a core Dropbox company value. In a standard system of this kind, failures might result in…