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Engineering News

Greykite: A flexible, intuitive, and fast forecasting library

Co-authors: Reza Hosseini, Albert Chen, Kaixu Yang, Sayan Patra, Rachit Arora, and Parvez Ahammad In this blog post, we introduce the Greykite library, an open source Python library developed to support LinkedIn’s forecasting needs. Its main forecasting algorithm, called Silverkite, is fast, accurate, and intuitive, making it suitable for interactive and automated forecasting at scale. We will start by describing a few applications, and then walk through the algorithm design and user experience. For more technical details, please refer to…

Breakthrough in reverse osmosis may lead to most energy-efficient seawater desalination ever

Graduate students Abhimanyu Das (left) and Akshay Rao adjust a piston tank, the key component to a new desalination process called “double-acting batch reverse osmosis.” Credit: Purdue University photo/Jared Pike Making fresh water out of seawater usually requires huge amounts of energy. The most widespread process for desalination is called reverse osmosis, which works by flowing seawater over a membrane at high pressure to remove the minerals. Now, Purdue University engineers have developed a variant of the process called “batch…

A highly dexterous robot hand with a caging mechanism

The Model W robotic hand incorporates a palm to achieve caging grasps. Credit: Walter G. Bircher, Andrew S. Morgan, Aaron M. Dollar A team of researchers at Yale University’s Department of Mechanical Engineering and Materials Science, has developed a robot hand that employs a caging mechanism. In their paper published in the journal Science Robotics, the group describes their research into applying a caging mechanism to robot hands and how well their demonstration models worked. As the researchers note, most…

People Behind the Product: Meet Jud Hoffman, Global Head of Community Operations

In the latest from our new Life at Pinterest series, People Behind the Product, get to know Jud Hoffman, Global Head of Community Operations at Pinterest and executive sponsor of Pinwheels, our Employee Community for LGBTQ+ Pinployees and their allies. First things first: how did you get your start in Community Operations? In 2010, I was leading a brand new product policy team at a technology company. The organization had a decentralized set of rules and norms for content, and…

Accounting for sleep disorders in highway safety

Praveen Edara, chair of the Department of Civil and Environmental Engineering People with shift work sleep disorder (SWSD) are three times more likely to crash or be in a near-crash than people without that condition. That’s the take-away from a study on accident causes and sleep disorders conducted by civil and environmental engineering (CEE) professors Praveen Edara and Carlos Sun. In addition, they found that people with sleep apnea or insomnia had a 30% greater chance of crashing or nearly…

Video: Reverse osmosis: How engineers save lives

We all know that water quality is very important when it comes to public health. How have engineers helped to make clean drinking water possible in the United States, and what about the rest of the world? Professor David Schaad talks about the process of reverse osmosis and how it can help to save lives with clean water. Credit: Duke University School of Nursing Breakthrough technology purifies water using the power of sunlight Provided by Duke University School of Nursing…

Turbine cooling turns night into day

Credit: Adigun Ampa on Unsplash Keeping turbines running efficiently during a hot Australian summer’s day can be hard work. But a new technology is drawing on the cold night air to make it easier. Gas turbines are at the heart of many power plants, but need substantial amounts of fossil or renewable fuels to keep running. Their energy efficiency also drops dramatically when it gets hot—by as much as 30 percent as the mercury passes 40 degrees Celsius. An invention…

Humanity wastes about 500 years per day on CAPTCHAs. It’s time to end this madness

Select all the buses. Click on bikes. Does this photo have traffic lights? As ridiculous as these questions are, you’re almost guaranteed to have seen one recently. They are a way for online services to separate humans from bots, and they’re called CAPTCHAs. CAPTCHAs strengthen the security of online services. But while they do that, there’s a very real cost associated with them. Based on our data, it takes a user on average 32 seconds to complete a CAPTCHA challenge.…

Scientists develop intelligent fault diagnosis method for nuclear power plants

Comparisons of average diagnostic error and complexity. Credit: GE Daochuan Recently, a research group from the Institute of Nuclear Energy Safety Technology of the Hefei Institutes of Physical Science (HFIPS) made new progress in intelligent fault diagnosis methods for complex systems of nuclear power plants (NPP), which provided theoretical and methodological support for fault diagnosis of the complex systems of NPP. Fault diagnosis technology is an important part of the nuclear power plant operation support system, which contributes to the…

New design for isolated power supply chip

Photo of Isolated power system package and chip. Credit: PAN Dongfang Recently, a research group led by Prof. Cheng Lin from School of Microelectronics, University of Science and Technology of China (USTC) of the Chinese Academy of Sciences has made achievements in the field of fully integrated isolated power chip design. The researchers proposed a chip based on glass fan-out wafer-level package (FOWLP), achieving 46.5% peak transformation efficiency and 50mW/mm2 power density. Compared with the traditional isolated power supply chip,…