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Engineering News

A smart, portable and miniaturized system that can analyze sweat

Credit: EPFL / Alain Herzog EPFL researchers have teamed up with startup Xsensio to develop a tiny, fully portable system that can encapsulate and analyze biomarkers in a person’s sweat. The low-power system, which fits on a chip measuring under 1 cm2, was presented this week at the International Electron Devices Meeting (IEDM) in San Francisco. The miniature chip was developed by researchers at EPFL’s Nanoelectronic Devices Laboratory (Nanolab), headed by Professor Adrian Ionescu, working in association with startup Xsensio.…

Exploring fluid dynamics in virtual reality

Anything that moves through water or air leaves behind an invisible wake of swirls and waves. Flow visualization makes these “flow field” patterns visible to allow researchers to study them. Credit: Syracuse University Virtual reality has grown beyond the gaming world and is increasingly being used for a variety of applications—including education. Researchers in Assistant Professor Melissa Green’s Flow Visualization Lab in the College of Engineering and Computer Science are developing a way to apply it to their work. This…

Things You Should Know About Arc Flashing at High Voltages

Arc flashing is a serious issue in electrical systems involving medium and high AC voltages. Any time there is a electrical system that utilizes high voltages, the design of the wires must include thick enough insulation to prevent a flash over from occurring. Unfortunately, preventing this from occurring does not end after the design. There are many reasons that arcing can happen. The following are a few things to understand about this phenomenon as well as a few things to…

IPvlan overlay-free Kubernetes Networking in AWS

Lyft is pleased to announce the initial open source release of our IPvlan-based CNI networking stack for running Kubernetes at scale in AWS. cni-ipvlan-vpc-k8s provides a set of CNI and IPAM plugins implementing a simple, fast, and low latency networking stack for running Kubernetes within Virtual Private Clouds (VPCs) on AWS. Background Today Lyft runs in AWS with Envoy as our service mesh but without using containers in production. We use a home-grown, somewhat bespoke stack to deploy our microservice…

Trickle-down is the solution (to the planetary core formation problem) — ScienceDaily

Scientists have long pondered how rocky bodies in the solar system — including our own Earth — got their metal cores. According to research conducted by The University of Texas at Austin, evidence points to the downwards percolation of molten metal toward the center of the planet through tiny channels between grains of rock. The finding calls into question the interpretation of prior experiments and simulations that sought to understand how metals behave under intense heat and pressure when planets…

NEST360’s low-cost jaundice detector passes first test in Africa

BiliSpec is a low-cost, battery-powered reader designed to diagnose jaundice by immediately quantifying serum bilirubin levels from a small drop of whole blood. Credit: Jeff Fitlow/Rice University The first clinical study of a low-cost, hand-held jaundice detector invented by Rice University students couldn’t have come at a better time for NEST360°, an international team of scientists, doctors and global health experts preparing for a Dec. 11 competition for $100 million from the MacArthur Foundation. The money would allow the team to…

With the right tools, we can mine cities

Cities like Melbourne are a store for such huge amounts of resources that they could be used as urban mines. Credit: Donaldytong (own work)/Wikimedia From 1900 to 2010, the amount of materials accumulated in buildings and infrastructure across the world increased 23-fold. We are depleting our resources at unprecedented rates. Instead of extracting dwindling raw materials from nature at ever-increasing cost, the time has come to start re-using materials from buildings and infrastructure in our cities. We have been working…

North Korea and the Paradox of Nuclear Weapons

On Tuesday, Nov. 28, North Korea launched a new type of intercontinental ballistic missile (ICBM).  Analysis of the flight path and other data indicates that the new model, called the Hwasong-15, can probably reach any point in the continental U. S.   And last September, Kim Jong-un ordered a successful underground test of a thermonuclear weapon whose yield exceeded 100 kilotons of TNT, the standard measure of nuclear-weapon power.  While North Korea has yet to demonstrate the ability to deliver nuclear…

Voyager 1 fires up thrusters after 37 years — ScienceDaily

If you tried to start a car that’s been sitting in a garage for decades, you might not expect the engine to respond. But a set of thrusters aboard the Voyager 1 spacecraft successfully fired up Wednesday after 37 years without use. Voyager 1, NASA’s farthest and fastest spacecraft, is the only human-made object in interstellar space, the environment between the stars. The spacecraft, which has been flying for 40 years, relies on small devices called thrusters to orient itself…

3-D-printed minifactories — ScienceDaily

There will soon be nothing that cannot be produced with 3D printing. However, the materials used for this process are still “dead matter” such as plastics or metals. A group of ETH researchers led by Professor André Studart, Head of the Laboratory for Complex Materials, has now introduced a new 3D printing platform that works using living matter. The researchers developed a bacteria-containing ink that makes it possible to print mini biochemical factories with certain properties, depending on which species…