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Search results for wave engineering

Environment Nov 6, 2023

Green spaces can save lives, according to urban big data

Against the backdrop of global climate change, extreme heat events are becoming hotter, longer, and more frequent. Such sustained extreme heat has severely impacted people's health all over the world.

Condensed Matter Nov 6, 2023

Detecting hidden defects in materials using a single-pixel terahertz sensor

In the realm of engineering and material science, detecting hidden structures or defects within materials is crucial. Traditional terahertz imaging systems, which rely on the unique property of terahertz waves to penetrate ...

Earth Sciences Nov 2, 2023

A monster eddy current is spinning into existence off the coast of Sydney—will it bring a new marine heat wave?

Right now, there's something big spinning off the coast from Sydney—a giant rotating vortex of sea water, powerful enough to dominate the ocean currents off south-eastern Australia.

Cell & Microbiology Nov 2, 2023

Imaging advance poised to provide new insights into reproduction and infertility

Researchers have developed a new optical coherence tomography (OCT) approach that can directly image coordination of tiny hair-like structures known as motile cilia in their natural environment. The ability to observe cilia ...

Condensed Matter Oct 16, 2023

Photonic crystals bend light as though it were under the influence of gravity

A collaborative group of researchers has manipulated the behavior of light as if it were under the influence of gravity. The findings, which were published in the journal Âé¶¹ÒùÔºical Review A on September 28, 2023, have far-reaching ...

Condensed Matter Oct 12, 2023

Phonon engineering for extended lasing beyond the fluorescence spectrum

The electron and phonon are two fundamental particles (quasi-particles) of condensed matter and their interplay in single crystals can create many interesting physical phenomena, such as polaritons, charge density waves and ...

Astronomy Sep 29, 2023

A search for links between two of the universe's most spectacular phenomena has come up empty—for now

Every so often, astronomers glimpse an intense flash of radio waves from space—a flash that lasts only instants but puts out as much energy in a millisecond as the sun does in a few years. The origin of these "fast radio ...

Biotechnology Sep 19, 2023

Novel approach to engineered cells may enable molecular medical imaging

A tiny molecular structure that looks like a bubble may be able to significantly improve medical imaging, according to a Penn State research team. Called gas vesicles (GVs), these structures are naturally produced by certain ...

Optics & Photonics Sep 14, 2023

A nonrelativistic and nonmagnetic mechanism for generating terahertz waves

Scientists and engineers keep developing ever faster and more powerful technological devices. But there is a need for even faster and more efficient electronics. A promising route is to take advantage of terahertz waves, ...

Condensed Matter Aug 29, 2023

Quantum-enhanced detection for chip-scale wireless communications

The demand for fast data sharing and processing has sparked a race for greater bandwidth in wireless communication systems. This is described by Edholm's Law, which states that bandwidth and data rates roughly double every ...

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