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Engineering News

Mizzou Engineering, Benton Elementary team up on educational event

by Megan Schaltegger Two classes of Benton Elementary School fifth graders were invited to the MU transportation simulator lab recently for a morning of educational fun. The group experimented with a bicycle simulator, learning under the tutelage of graduate student Michael Schoelz. Photo courtesy of Praveen Edara. Benton’s STEM program partnered with ZouTrans, MU’s “vibrant undergrad and graduate research community,” in the College of Engineering, to bring approximately 50 students to the facility for a lesson on traffic safety, road…

Culture of Quality: Measuring Code Coverage at Etsy

In the summer of 2017, Etsy created the Test Engineering Strategy Team to define, measure, and develop practices that would help product engineering teams ship quality code. One of our first goals was to find a way to establish a quantifiable quality “baseline” and track our progress against this baseline over time. We settled on code coverage because it provides both a single percentage number as well as line-by-line detailed information for engineers to act on. With over 30,000 unit…

Smart and comfortable new textiles for high-tech clothing

Prof. Dr. Andreas Greiner (left) and Prof. Dr. Seema Agarwal (right) with equipment for electrospinning at the University of Bayreuth. With backlighting, one can see the thin fibres from which nonwoven materials are formed. Credit: Christian Wißler Uncomfortable, rigid, with low air permeability: textile materials capable of conducting electricity can be awkward for day-to-day use. However, researchers at the University of Bayreuth, Donghua University in Shanghai, and Nanjing Forestry University have now developed new nonwoven materials that are electrically conductive…

Integrated design strategy lowers the mass and costs of motors that move objects nanometers at a time

An integrated nanopositioning device can achieve high precision with a simpler and less expensive design than typically used. Credit: IEEE. Reprinted, with permission, from Ref 1.  Probing intricate cells or high-tech microchip components requires ‘nanopositioners’ that can scan large areas with extremely small steps. Normally, these positioners have separate fine- and coarse-movement stages, but A*STAR researchers have introduced a parallel-actuated system that integrates the two units for improved energy efficiency. When engineers design bearings for guiding moving parts, they typically…

Merge assistant for trucks takes over from the driver

PhD candidate Jan Loof in the electric Lupo in which he tested his merge assistent. Credit: Bart van Overbeeke Merging on the motorway or changing lanes: this may quite literally become an automatism for truck drivers in the long term. Jan Loof, mechanical engineer at Eindhoven University of Technology, has developed a system that can take over the steering and enable a vehicle to automatically merge in traffic. However, the driver will always exercise control of the steering wheel. First…

A magnetic method for polishing metals enables mold templates with microscale features

A microfluidic chip injection mold. Credit: A*STAR Singapore Institute of Manufacturing Technology Injection molding enables large-scale production of polymer and plastic materials with micrometer-sized features. Now, A*STAR scientists have developed a method for creating mold templates with high precision and few defects. A fluid behaves very differently when it is confined to micrometer-scale channels. This phenomenon already has several applications such as enabling the analysis of small samples of blood. These microfluidic systems are small and portable, easy to…

What do you get when you cross an airplane with a submarine?

Bryant, Weisler and Stewart (from left to right), with a prototype of the EagleRay. Credit: North Carolina State University Researchers from North Carolina State University have developed the first unmanned, fixed-wing aircraft that is capable of traveling both through the air and under the water – transitioning repeatedly between sky and sea. The EagleRay XAV, which was developed with funding and assistance from Teledyne Scientific, holds promise for use in applications such as tracking and observing wildlife. “Maintaining aerial surveillance…

10 Best Ideas for Cryptocurrency Blog

If you are acquainted with bloggers and writers, you know that such creative people are always in quest of new inspiration sources – from art objects to the latest technological releases. This year, blogs are growing in popularity, and many of them are devoted to blockchain ledger, virtual money, and cryptocurrencies. And you still have a chance to join this movement! So, if you want to write about Bitcoin, Ethereum, Ripple, or other digital currencies, it’s high time to present…

The antibiotic cocktail produced by symbiotic bacteria changed very little in the course of evolution and its antipathogenic effect remained unaltered — ScienceDaily

The discovery of penicillin about 90 years ago and the widespread introduction of antibiotics to combat infectious diseases have revolutionized human medicine. However, in recent decades, the increase in multidrug-resistant pathogens has confronted modern medicine with massive problems. Insects have their own antibiotics, which provide natural protection against germs. A team of scientists from the Johannes Gutenberg University in Mainz and the Max Planck Institute for Chemical Ecology in Jena have now found that beewolves, unlike humans, do not face…

Chrome’s plan to label sites as “Not Secure”

Google just announced that beginning in July 2018, with the release of Chrome 68, web pages loaded without HTTPS will be marked as “not secure”. More than half of web visitors will soon see this warning when browsing unencrypted HTTP sites, according to data from Cloudflare’s edge that shows 56.62% of desktop requests originate from Chrome. Users presented with this warning will be less likely to interact with these sites or trust their content, so it’s imperative that site operators…