Abstract: In order to solve the real-time positioning problem of flexible wearable ultrasonic transducer array unit under dynamic conditions, a new transducer array based on button flexible structure ...

Imagine if our skies were always filled with a thick layer of opaque clouds. With no way to see the stars, or to view our planet from above, would we have ever discovered that the Earth is round? The ...

Since 2008, Stack Overflow has been an immensely helpful resource for developers, allowing them to crowdsource answers to their coding questions — and resulting in a vast online repository of coding ...

"With our metasurface tweezer array approach, we hope to scale neutral-atom arrays even further, perhaps even beyond 100,000 atoms." This scaling comes from a fundamentally new approach to generating ...

For quantum computers to outperform their classical counterparts, they need more quantum bits, or qubits. State-of-the-art quantum computers have around 1,000 qubits. Columbia physicists Sebastian ...

Electro-optical detectors are used to measure or sense the radiation emitted or reflected by objects within the detector’s optical field of view (FOV). Passive systems operate without any illumination ...

Abstract: This paper presents a two-dimensional (2D) wide-angle scanning phased array based on a pattern reconfigurable two-element subarray. The two-element subarray design method enables flexible 1D ...

Researchers are exploring MXenes, 2D materials that could transform air into ammonia for cleaner fertilizers and fuels. Their atomic structures can be tuned to optimize performance, making them ...

Despite the possibility of a government shutdown next week, the Education Department is slated to begin the complicated endeavor of determining how to carry out the sweeping higher ed changes in ...

When dealing with higher dimensions in geometry, it is often instructive to start with lower ones and work your way up. If we start with two points, which are by definition each of zero dimension, we ...