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Engineering News

Hazards of high oxygen concentration, mixing incompatible materials, and more in process safety newsletters

Posted By Jyllian Kemsley on Aug 1, 2017 in Accidents, Featured, Industry, Safety resources | From AIChE’s “Process Safety Beacon” newsletters: Hazards of high oxygen concentration – “Autoignition temperature (AIT) and minimum ignition energy (MIE) are lowered markedly by higher oxygen content. Substances ignite more readily, burn faster, generate higher temperatures, and are difficult to extinguish.” Mixing incompatible materials in storage tanks – “Understand potential hazardous interactions among different materials that you unload into your plant’s storage…

Micro-membrane diaphragm pump for delivering ambient air to gas sensors

The world’s smallest micromembrane pump measures just 25 square millimeters. Credit: Fraunhofer EMFT Particulate matter harms the heart and lungs. In the future, a smartphone with an inbuilt gas sensor could be used to warn of heavy exposure. To help the sensor respond quickly and provide accurate measurements, researchers at Fraunhofer have developed a powerful micro diaphragm pump for delivering ambient air to the sensor. “Our smart pump measures only 25 square millimeters, making it the world’s smallest pump. That…

Automated painting of individual pieces

Multi-physical simulation of a high-rotation atomizer with internal charging. In this example, the simulation is being used to calculate the drop trajectory on the car body of a Volvo V60. Credit: Fraunhofer FCC Reductions of 20 percent in paint use, 15 percent in energy consumption and 5 percent in production time – the SelfPaint automated painting system offers significant advantages compared to manual painting operations, which have previously been the preferred option. SelfPaint’s biggest advantage could well be that it…

Reliably determining and predicting attitude motion of defunct satellites

Fraunhofer FHR‘s space observation radar TIRA. Credit: Fraunhofer FHR Uncontrollable flying objects in the Earth’s orbit are an enormous risk for active satellites and for spacecraft in general. Since April 2012, the European environmental satellite ENVISAT has also been adrift in orbit. Now, the Fraun-hofer Institute for High Frequency Physics and Radar Techniques FHR has developed pioneering methods to precisely determine the attitude rotation of malfunctioning satellites and, thus, to support de-orbiting missions in the future. The ENVISAT environmental satellite…

Building Blockchain with Hyperledger : Developer’s Guide (Part 1)

In our previous post about blockchain, we described the basics and terminologies of blockchain technology and its success stories in various fields including supply chain management, prediction markets, identity management stock trading, governance, etc. As a quick recap of the blockchain, IBM is collaborating with other organizations with the aim of developing an open source implementation of the blockchain. The business use case is hosted by The Linux Foundation and is called the Hyperledger Fabric. Now that you are aware…

Biofeedback technology helping improve balance in Parkinson’s patients

Smarter Balance System. Credit: University of Houston University of Houston researchers in the Department of Health and Human Performance are helping patients with Parkinson’s disease regain stable balance and confidence in performing daily activities in their own homes. A research team is developing the Smarter Balance System (SBS), a smartphone-based biofeedback rehabilitation system that guides patients through a series of balance exercises using wearable technology. “Our overarching goal is to improve their quality of life by improving postural stability, reducing…

Building Migrations for Slack Enterprise Grid

by Eric Vierhaus and Todd Wirth “The Raygun Gothic Rocketship at Pier 14 on the Embarcadero” by Tom Hilton (cc-by) Slack Enterprise Grid lifted off in January 2017, allowing Slack to power the work behind even the largest and most complex companies in the world. To achieve this, our new product allows administrators to link multiple Slack teams together under one organization. When we set out to build the Enterprise product back in 2015, it was clear we’d need an entirely…

Artificial skin could allow robots to feel like we do

Researchers are running tests on pig skin to come up with an artificial alternative for robots. Credit: Dr Aisling Ni Annaidh at University College Dublin Artificial skin with post-human sensing capabilities, and a better understanding of skin tissue, could pave the way for robots that can feel, smart-transplants and even cyborgs. Few people would immediately recognise the skin as our bodies’ largest organ, but the adult human has on average two square metres of it. It’s also one of the…

Accelerating Services at Airbnb by Building a Blazing Fast Thrift Binding for Ruby

Achieving Bare-Metal Performance in Ruby Writing performant code in Ruby can be difficult due to its dynamic nature: unlike lower-level languages where the idiom is zero-cost-abstractions, pretty much everything in a dynamic language is expensive. As such, it was no surprise that the Ruby Thrift Binding took advantage of an important tool that is often used to improve the performance of libraries in dynamic languages: C extensions. As a kind of abstraction, C extensions hide all the detail of a performant implementation…

3-D printing technologies transport students to ancient greece

The use of 3-D printing technologies in Victoria University of Wellington’s Classics Museum has students using ancient Greek artefacts the way they were intended—from interacting with 3-D printed ancient objects to designing their own amphorae (storage jars). Dr Diana Burton, senior lecturer in Victoria’s School of Art History, Classics and Religious Studies, wanted students to have practical experiences with the objects in the Museum without risking damage to the historic pieces. “In Greek art, pretty much everything is functional—they…