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Category: Mechanical Engineering

Engineers identify key to albatross’ marathon flight

Engineers at MIT have developed a new model to simulate dynamic soaring, and have used it to identify the optimal flight pattern that an albatross should take in order to harvest the most wind and energy. They found that as an albatross banks or turns, it should do so in shallow arcs, keeping almost to a straight, forward trajectory. Credit: Massachusetts Institute of Technology The albatross is one of the most efficient travelers in the animal world. One species, the…

Researchers point to early warning signs in military vehicle structural ‘wellness’

Atomic force microscope image of a residual indent. Credit: U.S. Army Research Laboratory Researchers from the U.S. Army Research Laboratory have shown that early fatigue damage behavior in structures may be predicted through the study of the microscale mechanical behavior of the material. The findings are an important result for the structural health monitoring (SHM) community and may lead to new sensing techniques for predicting the service life of critical components. ARL researchers Daniel Cole, Ed Habtour, Tomoko Sano, Sean…

Car Infotainment Distractions Can Be Deadly

A study just released by the AAA Foundation for Traffic Safety shows that many 2017-model cars have infotainment features that can dangerously distract drivers.  Such distractions may be an important reason why, after declining for years, the annual car-fatality rate in the U. S. rose in 2016. A report in the Washington Post describes how University of Utah researcher David Strayer led a study involving about 30 different 2017-model vehicles, ranging from a Ford F250s to a Tesla Model S. …

Using neural networks to predict customers’ needs – Square Corner Blog – Medium

Deep learning for browsing and path analysis. Square provides a powerful analytics tool called Seller Dashboard that gives our sellers insights into, and tracking of, their businesses. Using this tool, Square sellers can view their daily sales summary, manage inventory, confirm deposits, and do much more to untangle complicated tasks they face every day. The primary goal of the Seller Dashboard team here at Square is to promptly address our sellers’ problems when they arise, while also continuing to enhance…

Getting to Know David Max

Before joining LinkedIn in the New York City office in February 2015, he worked at Google on ad serving for about two years. Before that, he spent about 10 years working in financial technology for various financial firms, such as Barclays and Goldman Sachs. David received his bachelor’s degree in computer science from Caltech and his master’s degree from New York University. What are your favorite kinds of engineering stories to read on the blog?My favorite kinds of engineering stories…

Optimum drill geometry for creating deep, narrow holes is determined using a computational model

Computational fluid dynamic simulations of a chip falling through a fluid enables optimization of gundrill design. Credit: A*STAR Singapore Institute of Manufacturing Technology Improving the design of drills capable of excavating deep holes should increase their performance and longevity. Scientists from A*STAR develop a computational model that can determine the ideal drill design, achieving significant savings. In designing a drill, a crucial consideration is the effective removal of material, known as chips. A standard drill bit, the part of the…

You’re amazing just the way you are – Wealthfront Engineering Blog

Abstraction is a technique for arranging computer systems in such a way as to reduce the complexity of interacting with them. The system makes a certain complexity level available for other systems to interact with, while suppressing some of the inner workings. Programming languages, for example, are abstractions over assembly languages, which are abstractions over machine-level languages. Efficient use of abstraction is essential to writing maintainable, extendable software. Identifying when to abstract or when to incorporate an existing abstraction requires…

Wearable device that tracks indoor and outdoor air quality

MIT-France student intern Annie Dai (seated) says of her summer at Plume Labs: “This was probably the best summer I’ve had in my life and I think that was partially because it’s the most responsibility I’ve been given on a project.” Credit: Lillie Paquette/School of Engineering This past June, Grace Li ’17 stepped off a plane in Paris ready to spend her summer tracking down a silent killer. Now Li, her former teammates, and the flock of trained pigeons who…

Drones controlled with brain-computer interface

Panagiotis Artemiadis, professor of mechanical and aerospace engineering at Arizona State University, with two drones in his Human-Oriented Robotics and Control (HORC) Lab at the ASU Tempe campus. Credit: Deanna Dent/ASU Now Single unmanned autonomous vehicles (UAVs) directed by joysticks, radio controllers, and mobile phones are already accomplishing a variety of useful tasks, such as aerial photography and security patrols. But using multiple drones requires multiple human operators, and this presents a coordination problem. Now a single operator using emerging…

Building a Network of Tunnels Underground to Ease the Flow of Traffic » Curious Cat Science and Engineering Blog

Building a Network of Tunnels Underground to Ease the Flow of Traffic Posted on October 1, 2017  Comments (0) “Roads must go 3D” – Elon Musk The Boring company plans to build the network of tunnels under the ground in order to combat traffic congestions all over United States. As seen in their presentation video, the idea is to construct a system of tunnels in which electric vehicles autonomously zip around cars, people and cargo transport in high speed under…