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Engineering News

Square’s Register API is now Point of Sale API – Square Corner Blog – Medium

We recently announced a new name for the Square Register app to better reflect everything it can do to help run your business: Square Point of Sale. You can use the app to take payments, track sales, manage customers and employees, and more — everything you need from a complete point of sale. As part of this broader change, we are also renaming Register API to Point of Sale API. The Square Point of Sale API uses inter-app communication to let your…

Selection Bias in Online Experimentation – Airbnb Engineering & Data Science – Medium

What Is It? As a statistician who moved to work in data science in industry less than two years ago, it is inspiring to see the almost universal adoption of experimentation to guide product and business decisions. Statistical inference and hypothesis testing are ingrained in our daily work, and an appreciation of randomness informs much of our decision making. However, the era of big data and A/B testing at scale present new challenges to our old methodologies. If you have experience…

Rattan Khosa highlighted by Chicago Booth

The Founder/President of AMSYSCO has been highlighted by The University of Chicago Booth School of Business for his charitable donations to his alumna mater.  The article can be read here.  It discusses his path starting from humble beginnings towards entrepreneurial success in the post-tensioning industry. ____________________________________________ Copyright © 2017 by AMSYSCO, Inc. All rights reserved. Source link…

Reducing Image File Size at Etsy

Serving images is a critical part of Etsy’s infrastructure. Our sellers depend on displaying clean, visually appealing pictures to showcase their products. Buyers can learn about an item by reading its description, but there’s a tangibility to seeing a picture of that custom necklace, perfectly-styled shirt, or one-of-a-kind handbag you’ve found. Our image infrastructure at its core is simple. Users will upload images, we convert them to jpegs on dedicated processing machines (ImgWriters) and store them in large datastores (Mediastores).…

Laser weapons could go from big screen to battlefield with engineers’ help

John Ballato, left, and Lin Zhu are taking two separate but complementary paths to creating lasers that can be deployed to the battlefield for defense purposes. Credit: Clemson Unviersity The rebels and the empire used laser cannons to shoot it out on the big screen in “Star Wars,” but the weapons could soon move to the battlefield with the help of two Clemson University engineers who are receiving a combined $3.2 million from the Department of Defense. John Ballato and…

A 3-D-printed rocket engine just launched a new era of space exploration

Credit: RocketLab The rocket that blasted into space from New Zealand on May 25 was special. Not only was it the first to launch from a private site, it was also the first to be powered by an engine made almost entirely using 3-D printing. This might not make it the “first 3-D-printed rocket in space” that some headlines described it as, but it does highlight how seriously this manufacturing technique is being taken by the space industry. The team…

Economic alternative for hexavalent chromium anticorrosive agent

With EHLA, metal protection layers can be applied at an extremely high speed. Credit: Fraunhofer ILT To prevent components from becoming corroded or worn, they are often coated using hexavalent chromium. Starting in September of 2017, though, this will only be permitted with exceptions. The extreme high-speed laser material deposition (EHLA) developed by Fraunhofer and RWTH researchers offers an economic alternative for the first time ever. Whether in the automotive industry, machinery and plant engineering or aerospace, numerous metallic components…

Tactile feedback adds ‘muscle sense’ to prosthetic hand

Test subjects were more than twice as likely to correctly discern the size of grasped objects grasped with a prosthetic hand when they received haptic feedback from a simple skin-stretch device on the upper arm. Credit: Jeff Fitlow/Rice University Engineers working to add “muscle sense” to prosthetic limbs found that tactile feedback on the skin allowed blindfolded test subjects to more than double their ability to discern the size of objects grasped with a prosthetic hand. The results will be…

New technology concept enables elderly people to live at home safely

What to do if you fall in your home? Many elderly people ask themselves these and similar questions; they want security without having to give up their own four walls. A new technology concept, developed by the Fraunhofer Institute for Experimental Software Engineering IESE in Kaiserslautern, Germany, now makes this possible – while also ensuring privacy. A communication tool integrates nursing care consultation and ensures social integration. Security? Absolutely – this is especially true for older people who live alone…

Holographic measurement technology at production speed

The system can measure centimeter-sized rough objects in fractions of a second with micrometer accuracy – even under disturbances, such as vibrations. Credit: Fraunhofer IPM Fault tolerance in automobile production is increasingly diminishing. Until recently, this presented suppliers with a problem: There were no sufficient methods for detecting micro defects during production. Visual inspection was the solution of choice, but this is not suitable for in-line measurements in the production process. By developing digital holography to become suitable for production,…