Category Physics

Wirelessly Powered Relay will help bring 5G Technology to Smart Factories

Figure 2 Prototype of the proposed relay transceiver The prototype of the proposed relay transceiver was fabricated with Si CMOS 65nm chips and 4×2 patch phased-array antenna board.
Prototype of the proposed relay transceiver
The prototype of the proposed relay transceiver was fabricated with Si CMOS 65nm chips and 4×2 patch phased-array antenna board.

The proposed innovative design leads to unprecedented power conversion efficiency and improved versatility. A recently developed wirelessly powered 5G relay could accelerate the development of smart factories, report scientists from Tokyo Tech. By adopting a lower operating frequency for wireless power transfer, the proposed relay design solves many of the current limitations, including range and efficiency. In turn, this allows for a more versatile and widespread arrangement of sensors and transceivers in industrial settings.

One of the hallmarks of the Information Age is the transformation of industries towards...

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Researchers improve Solid Oxide Fuel Cell Threefold

Threefold improvement of solid oxide fuel cell in 4 minutes
This image was selected as a front-inside cover of Advanced Materials illustrating the morphology evolution of oxide nano-catalyst over time during coating process. Credit: Korea Institute of Energy Research (KIER)

A research team has successfully developed a catalyst coating technology that significantly improves the performance of solid oxide fuel cells (SOFCs) in just four minutes.

Dr. Yoonseok Choi from the Hydrogen Convergence Materials Laboratory at the Korea Institute of Energy Research (KIER), in collaboration with Professor WooChul Jung from the Department of Materials Science and Engineering at KAIST and Professor Beom-Kyung Park from the Department of Materials Science and Engineering at Pusan National University, led the research.

Their findings were published in Adva...

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A New Large-Scale Simulation Platform to Train Robots on Everyday Tasks

A new large-scale simulation platform to train robots on everyday tasks
RoboCasa is a simulation framework for training generalist robot agents. Image credits: Yuke Zhu and Soroush Nasiriany.

The performance of artificial intelligence (AI) tools, including large computational models for natural language processing (NLP) and computer vision algorithms, has been rapidly improving over the past decades. One reason for this is that datasets to train these algorithms have exponentially grown, collecting hundreds of thousands of images and texts often collected from the internet.

Training data for robot control and planning algorithms, on the other hand, remains far less abundant, in part because acquiring it is not as straightforward...

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New Technique improves AI ability to Map 3D Space with 2D Cameras

time-lapse photograph shows blurred images of car lights moving in two different directions
Photo credit: Robin Pierre.

Researchers have developed a technique that allows artificial intelligence (AI) programs to better map three-dimensional spaces using two-dimensional images captured by multiple cameras. Because the technique works effectively with limited computational resources, it holds promise for improving the navigation of autonomous vehicles.

“Most autonomous vehicles use powerful AI programs called vision transformers to take 2D images from multiple cameras and create a representation of the 3D space around the vehicle,” says Tianfu Wu, corresponding author of a paper on the work and an associate professor of electrical and computer engineering at North Carolina State University...

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