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Category: Civil Engineering

Construction using concrete reinforced with renewable materials

Plain-woven flax fabric. Credit: Jana Winkelmann Tomorrow’s building material is here today. Textile-reinforced concrete (TRC) is durable, formable in diverse shapes and suitable for lightweight construction. As the name suggests, conventional TRC is reinforced with carbon or glass-fiber fabrics rather than steel. A research team at the Fraunhofer Institute for Wood Research, Wilhelm-Klauditz-Institut WKI is now replacing these fabrics with eco-friendly natural fibers. These alternatives rival conventional concrete’s performance, but leave a smaller carbon footprint, and cost less to make.…

Seven Months Later – Wayfair Tech Blog

It’s been seven months since Dan Uhl reflected on our conversion to React and Redux at Wayfair. The article was written right after the Product Detail Page (or PDP – you might know it as the page you see when you’re ready to purchase a product here at Wayfair) was converted entirely to React and Redux. It took a process of shaping our data for our new data store and working down the tree of components on our page, converting…

Improving Driver Communication through One-Click Chat, Uber’s Smart Reply System

Imagine standing curbside, waiting for your Uber ride to arrive. On your app, you see that the car is barely moving. You send them a message to find out what’s going on. Unbeknownst to you, your driver-partner is stuck in traffic en route to your pick-up location. They receive your message and want to reply back. This scenario is something Uber driver-partners tell us is a pain point. So we began thinking, what if it were possible for people who…

Engineers search for cause in cracked beam at transit hub

Traffic backs up on Fremont Street and is diverted around the closed Salesforce Transit Center Wednesday, Sept. 26, 2018, in San Francisco. A second beam in San Francisco’s celebrated new $2 billion transit terminal shows signs of cracking, an official said Wednesday, a day after a crack in a nearby support beam shut down the building that opened just last month. The first crack found by workers installing roof tiles Tuesday spans a beam holding up a park over the…

Enabling Product Innovation Through Technical Innovation

At Coursera, millions of learners use search to discover courses. For learners with a specific intent, we need relevant results. For learners with less concrete goals, we need to give a feeling of serendipity by injecting novelty and diversity into the results. In this blog post, we detail how our new search system, powered by Algolia, allows us to iterate toward this future. Previous Search System Search at Coursera has undergone two major revamps. Our initial approach was to return all…

Netflix’s Production Technology = Voltron – Netflix TechBlog – Medium

by Chris Goss Change management is hard. In everyday production, there are numerous factors working against embracing change. Limited preparation time, whole new show = whole new crew, innumerable planning variables, and the challenge of driving an operational plan based on creative instincts. These are problems that technology is not yet built to solve. Time, training, and education can and will make a dent in our efforts, but creative planning is nuanced, and by nature, human. So, where do we…

Mehta shines at Independence Power & Light

MU Mechanical and Aerospace Engineering senior Shivan Mehta spent the summer in an internship with Independence Power & Light (IP&L). Photo courtesy of Shivan Mehta. MU Mechanical and Aerospace Engineering senior Shivan Mehta maximized his engineering and leadership skills this summer, landing an internship with Independence Power & Light (IP&L),  a municipal electric utility established in 1901 to provide the residents and businesses of Independence, Mo., with safe, reliable and affordable electric service. Learn a little more about his internship…

Introducing Petastorm: Uber ATG’s Data Access Library for Deep Learning

In recent years, deep learning has taken a central role in solving a wide range of problems in pattern recognition. At Uber Advanced Technologies Group (ATG), we use deep learning to solve various problems in the autonomous driving space, since many of these are pattern recognition problems. Many of our models require tens of terabytes of training data acquired from numerous sensors, including cameras, lidars, and radars. Researchers and engineers at Uber ATG are actively pushing the state of the…

Introducing HaloDB, a fast, embedded key-value…

By Arjun Mannaly, Senior Software Engineer  At Oath, multiple ad platforms use a high throughput, low latency distributed key-value database that runs in data centers all over the world. The database stores billions of records and handles millions of read and write requests per second at millisecond latencies. The data we have in this database must be persistent, and the working set is larger than what we can fit in memory. Therefore, a key component of the database performance is…

Scalable User Privacy | Labs

At Spotify, we have a complex and diverse data processing ecosystem. Our backend infrastructure handles millions of requests per second, which are processed by over a thousand (micro)services. Our batch pipeline environment is equally complex and diverse; we run thousands of jobs written in a variety of frameworks such as Scio, BigQuery, Apache Crunch and Spark. The data processed by these services and pipelines power critical parts of our organization. We use data to calculate royalties, run A/B tests, process…