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Author: engineering

Mizzou Engineer Using Machine Learning to Translate Historical Script

What do you do with 200,000 handwritten historical records nobody can read? Call an engineer. That’s what Viviana Grieco did when she needed help decoding a collection of 17th Century notary records from Argentina. Now, she and Praveen Rao, an associate professor of electrical engineering and computer science and health management and informatics at Mizzou, are using machine learning to translate these texts. Grieco is an associate professor in history & Latin American and Latinx Studies at the University of…

Strengthen Li-Ion-Powered Product Safety with Enhanced Monitoring and Control

Download this article in PDF format. Lithium-ion batteries represent one of the best inventions of the 20th century. They have one of the highest energy-density specifications of any battery made (energy density is the quantity of energy stored in a given space or volume). Small size and high power make these batteries suitable for many portable applications. Cordless power tools, lawn equipment, and eBikes all use them. Hybrid and electric vehicles have adopted the Li-ion as their main power source, too. All this…

Storing energy in red bricks

Red brick device developed by chemists at Washington University in St. Louis lights up a green light-emitting diode. The photo shows the core-shell architecture of a nanofibrillar PEDOT-coated brick electrode. Credit: D’Arcy laboratory, Department of Chemistry, Washington University in St. Louis Imagine plugging in to your brick house. Red bricks—some of the world’s cheapest and most familiar building materials—can be converted into energy storage units that can be charged to hold electricity, like a battery, according to new research from…

Electronic components join forces to take up 10 times less space on computer chips — ScienceDaily

Electronic filters are essential to the inner workings of our phones and other wireless devices. They eliminate or enhance specific input signals to achieve the desired output signals. They are essential, but take up space on the chips that researchers are on a constant quest to make smaller. A new study demonstrates the successful integration of the individual elements that make up electronic filters onto a single component, significantly reducing the amount of space taken up by the device. Researchers…

Using Big Data to Improve Traffic Flow

Assistant Professor Yaw Adu-Gyamfi The digital sign flashes “Accident Ahead – Proceed With Caution” as drivers head along Interstate 70 in the St. Louis region. That usually means long delays for drivers as traffic builds up behind the accident. This also means a potentially serious accident that requires an immediate response from emergency personnel. However, those personnel may be the last to know about the accident. Because of how current systems operate, informing local emergency personnel, police, traffic management centers,…

MEMS-Like Accelerometer-Microphone Captures Lung, Cardiac “Vibe” for New Insight

Electronics for “personal” medical devices is an area of great research interest, especially when the device can be shrunk down to a minuscule size and is easily wearable. Pursuing a well-traveled objective but with a different tactic, a team based at the Georgia Institute of Technology (Georgia Tech) has gone after the “mechanical” and vibrational signals from the heart and lungs rather than more-common electrocardiogram (EKG or ECG) and pulse-related waveforms. The project recognizes that the mechano-acoustic signals originating from…

Improving our video encodes for legacy devices | by Netflix Technology Blog | Aug, 2020

by Mariana Afonso, Anush Moorthy, Liwei Guo, Lishan Zhu, Anne Aaron Netflix has been one of the pioneers of streaming video-on-demand content — we announced our intention to stream video over 13 years ago, in January 2007 — and have only increased both our device and content reach since then. Given the global nature of the service and Netflix’s commitment to creating a service that members enjoy, it is not surprising that we support a wide variety of streaming devices,…

PinnerSage: Multi-Modal User Embedding Framework for Recommendations at Pinterest | by Pinterest Engineering | Pinterest Engineering Blog | Aug, 2020

Aditya Pal | Applied Science, Chantat Eksombatchai | Applied Science, Yitong Zhou | User Understanding, Bo Zhao | User Understanding, Charles Rosenberg | Applied Science, Jure Leskovec | Applied Science As we build a visual discovery engine that powers 2B+ Pins, it’s crucial to understand user interests and preferences in order to serve relevant content. One standard approach to encode user preferences is via an embedding-based representation in a high dimensional space. Most prior methods tried at Pinterest infer a…

New Ways to Put the Wonderful Wiegand Wire to Work

At a Glance: What makes the Wiegand effect interesting is that the strength of this pulse is virtually constant. Tiny Wiegand sensors, packaged as SMD components, are commonly used in multi-turn encoders for gas and water meter applications. An R&D initiative, sponsored by sensor manufacturer Posital and the German ministry of science and technology, aims to significantly increase energy output of Wiegand sensors. A Wiegand wire is a small piece of ferromagnetic wire with a special—almost magic—characteristic: When a magnetized…

Multi-Modal User Embedding Framework for Recommendations at Pinterest

Aditya Pal | Applied Science, Chantat Eksombatchai | Applied Science, Yitong Zhou | User Understanding, Bo Zhao | User Understanding, Charles Rosenberg | Applied Science, Jure Leskovec | Applied Science As we build a visual discovery engine that powers 2B+ Pins, it’s crucial to understand user interests and preferences in order to serve relevant content. One standard approach to encode user preferences is via an embedding-based representation in a high dimensional space. Most prior methods tried at Pinterest infer a single…