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Machine learning & AI

Novel 'pruning' technique shows promise for reducing AI bias without harming performance

A method known as "model pruning" can be used to pinpoint and remove neurons that consistently contribute to biased responses, say researchers at the Stanford Law School and the Stanford Institute for Human-Centered AI.

Engineering

Improving wireless charging: New tech can enhance efficiency via dynamic frequency adaptation

Wireless power transfer (WPT) enables device charging without direct physical or wired connections. Resonant circuits are key components of WPT systems that optimize energy transfer from the transmitter to the receiver. In ...

Energy & Green Tech

Waste-based perovskite solar cell achieves 21.39% energy efficiency

A team of materials scientists and solar engineers at Nanyang Technological University in Singapore, working with a colleague from Polytechnique Hauts-de-France, has developed a perovskite solar cell using a biomass-based ...

Energy & Green Tech

3D-printed coffee and mushroom mix offers compostable plastic alternative

Only 30% of a coffee bean is soluble in water, and many brewing methods aim to extract significantly less than that. So of the 1.6 billion pounds of coffee Americans consume in a year, more than 1.1 billion pounds of grounds ...

Energy & Green Tech

Tiny grooves reshape future of solar cell manufacturing

Flexible solar cells that do not contain any rare earth metal are paving the way for the development of low-cost, efficient solar energy, according to new research by the University of Sheffield.

Robotics

Leafbot: A soft robot that conquers challenging terrains

Soft robotics is an emerging field in the robotic world with promising adaptability in navigating unstructured environments. Where traditional robots struggle with unpredictable terrains, soft robots are advancing in their ...

Engineering

Encoding many properties in one material via 3D printing

A class of synthetic soft materials called liquid crystal elastomers (LCEs) can change shape in response to heat, similar to how muscles contract and relax in response to signals from the nervous system. 3D printing these ...

Machine learning & AI

OpenAI announces new 'deep research' tool for ChatGPT

US tech giant OpenAI on Monday unveiled a ChatGPT tool called "deep research" that can produce detailed reports, as China's DeepSeek chatbot heats up competition in the artificial intelligence field.

Robotics

Engineers help multirobot systems stay in the safety zone

Drone shows are an increasingly popular form of large-scale light display. These shows incorporate hundreds to thousands of airborne bots, each programmed to fly in paths that together form intricate shapes and patterns across ...