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Engineering News

Researchers work to add function to 3-D-printed objects

Credit: CC0 Public Domain In the movie Terminator 2, the T-1000 robot pours itself through the ceiling of an elevator. That scene started a flow of ideas for Purdue Polytechnic Institute professor Richard Voyles. “The point is, he’s computing while pouring,” said Voyles, a professor in engineering technology. “It may be fiction, but there’s sensing, computation and actuation that are all happening simultaneously while in that liquid state.” Purdue Polytechnic Institute and the College of Engineering faculty are working…

Body support device helps people learn to walk again after a stroke, trauma

Purdue University’s Xiumin Diao led a team to create a weight support system to help people suffering from walking disabilities after a stroke. Credit: Purdue University A Purdue University researcher with a passion to use engineering technology to improve health care has created a weight support system to help people suffering from walking disabilities after a stroke. The Centers for Disease Control and Prevention says about 795,000 people in the United States have a stroke each year, and it is…

our path to securing Internet Routing

This article will talk about our approach to network security using technologies like RPKI to sign Internet routes and protect our users and customers from route hijacks and misconfigurations. We are proud to announce we have started deploying active filtering by using RPKI for routing decisions and signing our routes. Back in April, articles including our blog post on BGP and route-leaks were reported in the news, highlighting how IP addresses can be redirected maliciously or by mistake. While enormous,…

The required cryptographic upgrade to BGP routing

We have talked about the BGP Internet routing protocol before. We have talked about how we build a more resilient network and how we can see outages at a country-level via BGP. We have even talked about the network community that is vital to the operation of the global Internet. Today we need to talk about why existing operational practices for BGP routing and filtering have to significantly improve in order to finally stop route leaks and hijacks; which are…

Transparent loudspeakers and mics that let your skin play music

Ultrathin, conductive, and transparent hybrid NMs can be applied to the fabrication of skin-attachable NM loudspeakers and voice-recognition microphones, which would be unobtrusive in appearance due to their excellent transparency and conformal contact capability. Credit: UNIST An international team of researchers affiliated with UNIST has presented an innovative wearable technology that turns the user’s skin into a loudspeaker. This breakthrough was led by Professor Hyunhyub Ko in the School of Energy and Chemical Engineering at UNIST. Created in part to…

Increased performance and lifetime of lithium batteries in renewable energy facilities

Credit: CC0 Public Domain In his Ph.D. thesis, Alberto Berrueta has investigated the physical mechanisms that govern the functioning of lithium batteries and their influence on a battery that functions when connected to a renewable facility. He also explored the way in which these batteries degrade, and has proposed a new management system. “The installing of renewable energy sources is becoming increasingly important across the world, and this trend is expected to continue over the coming years,” explained Alberto Berrueta-Irigoyen,…

Mathematicians propose to improve cellular network coverage by using UAVs

UAVs providing network coverage. Credit: Allen Dressen RUDN University mathematicians have simulated the work of a cellular network and modeled the use of unmanned aerial vehicles as additional transmitters. Most of the available communication systems have flat coverage and do not take into account the difference in altitude, which results in the appearance of the so-called “blind” zones. Flying drones could solve this issue. The work is published in the journal IEEE Transactions on Vehicular Technology. “Drones have become a…

Announcing Square Connect v2 Inventory API – Square Corner Blog – Medium

We are very pleased to announce the release of Inventory API to Connect v2. With this release, we’ve significantly upgraded functionality for the Inventory API. If you haven’t implemented the Connect v1 Inventory API, you’re coming in at the right time. If you’re a v1 user, read all about the exciting new features coming your way. We’re not the only ones excited, though — let one of our partners tell you: “Our merchants need real-time, accurate inventory data to effectively run their…

Research papers explain the transfer of radium during hydraulic fracturing for oil and gas — ScienceDaily

Radioactivity in fracking wastewater comes from the interaction between a chemical slurry and ancient shale during the hydraulic fracturing process, according to Dartmouth College research. The study, detailed in twin papers appearing in Chemical Geology, is the first research that characterizes the phenomenon of radium transfer in the widely-used method to extract oil and gas. The findings add to what is already generally known about the mechanisms of radium release and could help the search for solutions to challenges in…

New hurdle for developing immunotherapies — ScienceDaily

The body’s immune system is a valiant weapon against disease, and harnessing its power through a technique called immunotherapy is at the forefront of current research to treat cancer and other diseases. That’s why an unexpected finding by University of Notre Dame researchers and their collaborators, related to the way two distinctively different peptide antigens react with one T-cell receptor (TCR), tosses a new wrench into the process of building better molecules to develop immunotherapies. The surprising research showing peptide…