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Search results for impedance matching

Ecology Jan 16, 2024

Largest-ever study of ocean DNA creates comprehensive catalog of marine microbes

The ocean is the world's largest habitat, yet much of its biodiversity is still unknown. A study published in Frontiers in Science marks a significant breakthrough, reporting the largest and most comprehensive database of ...

General Âé¶¹ÒùÔºics Nov 8, 2023

Researchers realize water-air acoustic communication based on broadband impedance matching

With increasing demand for exploration and utilization of marine resources, achieving direct and efficient communication between water and air has been an urgent need. Sound waves, as the only propagation way with low attenuation ...

Nanophysics Oct 10, 2023

Novel framework promotes efficient electromagnetic wave absorption

A research team led by Prof. Wang Junfeng from the Hefei Institutes of Âé¶¹ÒùÔºical Science of the Chinese Academy of Sciences has developed a bio-inspired metal-organic framework (Bio-MOF) to achieve efficient absorption of ...

Optics & Photonics Sep 20, 2023

New method makes microcombs 10 times more efficient

Microcombs can help us discover planets outside our solar system and track new diseases in our bodies. But current microcombs are inefficient and unable to reach their full potential. Now, researchers at Chalmers University ...

Nanomaterials Jul 13, 2023

Scientists presents a one-step laser synthesis method for fabricating wideband microwave absorption metamaterial

Scientists from Chinese Academy of Sciences Ningbo Institute of Materials Technology and Engineering, National Âé¶¹ÒùÔºical Laboratory (U.K.), The University of Manchester (U.K.) and National University of Singapore have developed ...

Analytical Chemistry Jun 26, 2023

Solving the strength-toughness dilemma in superhard ceramics with a chemically tuned solid solution approach

Materials with superior mechanical strengths are crucial to many areas of modern industries and the scientific enterprise by providing cutting and drilling tools, structural components, protective coatings, and abrasives ...

Superconductivity Feb 14, 2023

Elusive transition shows universal quantum signatures

There are stark differences between metals, through which electrons flow freely, and electrical insulators, in which electrons are essentially immobile. And despite the obvious difficulties in finding a way to switch back ...

Social Sciences Feb 9, 2023

Twitter cut off in Turkey amid earthquake rescue operations: The danger of losing the service in times of disaster

Twitter was blocked in Turkey on Feb. 8, 2023, according to internet monitoring service NetBlocks. The outage came amid the massive rescue operation and humanitarian crisis in the aftermath of the earthquakes in southern ...

Earth Sciences Nov 11, 2022

Understanding how extreme river flows and sea levels could provide early flood warning

A research paper in Estuaries and Coasts provides the first step in improving coastal flood risk by analyzing in detail, how long different UK rivers take to discharge to the coast following heavy storm rainfall.

Analytical Chemistry Oct 3, 2022

Optimizing efficient perovskite photovoltaics

Developing low-cost and stable metal electrodes is crucial for mass production of perovskite solar cells (PSCs). As an earth-abundant element, Cu becomes an alternative candidate to replace noble metal electrodes such as ...

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