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Engineering News

Avoiding material inclusions such as dross in wind turbines

Dross in thick-walled cast iron with spheroidal graphite: casting surface after the fluorescent magnetic powder test. Credit: Fraunhofer LBF Wind turbines rise into the sky on enormous feet. To ensure these giants can reliably generate electricity for many years to come, the iron processing industry must manufacture their massive components in a stable, resource-saving and yet cost-effective way. However, material inclusions such as dross are often unavoidable while casting. Fraunhofer researchers are currently working to detect and analyze such material…

Single cells lined up like ducks in a row

The new microhole chip can be populated with 200,000 single cells, each held in place in separate holes. Credit: Fraunhofer IBMT The higher the concentration of tumor cells in the bloodstream, the greater the risk of metastasis. The number of circulating tumor cells indicates how well a patient is responding to therapy. Fraunhofer researchers have developed a new microhole chip that enables cells to be identified and characterized reliably within minutes. The conventional method of FACS analysis (fluorescence-activated cell sorting)…

How Airbnb Democratizes Data Science With Data University

By Jeff Feng, Erin Coffman & Elena Grewal Introduction Data is essential to us at Airbnb. We characterize data as the voice of our users at scale. Thus, data science plays the role of an interpreter — we use data and statistics to understand our users and translate it to a voice that people or machines can understand. We leverage these quantitative insights, paired together with qualitative insights (e.g. in-person user research) to make the best possible decisions for both the business…

An Application-Level Edge Cache to Make Slack Scale

Professor Robin Dunbar, when studying Neolithic farming villages and primate troupes in the 90s, theorized that the maximum number of stable relationships we can keep is around 148, known popularly as Dunbar’s number. This upper bound is due to the mental dossier kept on individual’s relationships, but more importantly, the number of cross relationships between everyone else, whose number grows geometrically. Today, your Slack client is the window into your workplace, and teams have grown into the tens of thousands…

Wearable system helps visually impaired users navigate

New algorithms power a prototype system for helping visually impaired users avoid obstacles and identify objects. Credit: Massachusetts Institute of Technology Computer scientists have been working for decades on automatic navigation systems to aid the visually impaired, but it’s been difficult to come up with anything as reliable and easy to use as the white cane, the type of metal-tipped cane that visually impaired people frequently use to identify clear walking paths. White canes have a few drawbacks, however. One…

The Battle to be the Uber of the Skies

Many people dream of taking to the skies in a private jet, but this is often seen merely as a fantasy. Flying in a private jet is deemed to be an experience reserved exclusively for the rich and the famous, but this is now changing and it is becoming a realistic form of transportation for many. On-Demand Flights This is thanks to the rise of on-demand services in recent times. Using your smartphone to order food, arrange dates and book…

Simplify Your Marketing Workflow With a Single View Dashboard

Take the Next Step for a Clear and Holistic Customer Focus Single Customer View provides complete and simplified information, allowing you to understand your customers and meet their needs better than ever. These days, organisations accumulate more customer data than ever before. It comes from all manner of directions – orders, purchases, marketing communications, social media engagement, email exchanges, online reviews and many more. For many companies, all this information is gathered and stored by different systems in different locations.…

Which create less carbon pollution?

These heat maps show carbon dioxide emission differences between drone and truck deliveries as a drone’s energy requirements (measured in watt-hours per mile) and the number of stops on a route increase. Red areas reflect conditions in which drones emit less carbon dioxide than trucks (lighter packages, fewer stops), while blue areas denote conditions in which drones emit more (heavier packages, more stops). Credit: University of Washington Delivering packages with drones can reduce carbon dioxide emissions in certain circumstances as…