Search results for impedance matching

Optics & Photonics Jan 15, 2021

Towards applications: ultra-low-loss on-chip zero-index materials

A refractive index of zero induces a wave vector with zero amplitude and undefined direction. Therefore, light propagating inside a zero-index medium does not accumulate any spatial phase advance, resulting in perfect spatial ...

Analytical Chemistry Jan 14, 2021

Lab-on-a-chip test has potential to detect COVID-19 immune response faster than current antibody testing

A new antibody test being developed by a team that includes two SMU researchers has the potential to detect the presence of antibodies generated in response to COVID-19 faster and with more accuracy than current antibody ...

Condensed Matter Nov 10, 2020

Bioinspired metagel with broadband tunable impedance matching

Impedance matching is a concept that can maximize energy transmission from a source through a media, and is established across electrical, acoustic and optical engineering. It is frequently necessary to match a load impedance ...

Plants & Animals Dec 01, 2020

New model predicts that larger fish suffer respiratory distress sooner

Large fish develop respiratory distress more quickly in warm water than smaller species, according to a new study involving researchers at Radboud University in collaboration with international researchers from McGill University ...

Archaeology Jul 08, 2015

Neutron tomography shows that the Pristerodon adapted to hear airborne sound 260 million years ago

A recent study by means of neutron tomography revealed that some forerunners of mammals were already able to hear airborne sound, because these animals already possessed an eardrum at the lower jaw, an impedance-matching ...

Nanophysics May 22, 2015

Physicists develop efficient method of signal transmission from nanocomponents

Physicists have developed an innovative method that could enable the efficient use of nanocomponents in electronic circuits. To achieve this, they have developed a layout in which a nanocomponent is connected to two electrical ...

Materials Science Jan 08, 2018

New model measures characteristics of carbon nanotube structures for energy storage and water desalination applications

Using electrodes made of carbon nanotubes (CNTs) can significantly improve the performance of devices ranging from capacitors and batteries to water desalination systems. But figuring out the physical characteristics of vertically ...

General Physics Feb 13, 2008

Desert Snake Hears Mouse Footsteps with its Jaw

Just a few decades ago, some scientists doubted that snakes could hear at all. Snakes lack an outer ear and external ear openings, making it difficult to understand how the reptiles receive acoustic vibrations.

General Physics Nov 14, 2018

Stretchable thermoelectric coils for energy harvesting in miniature flexible wearable devices

Miniaturized semiconductor devices with energy harvesting features have paved the way to wearable technologies and sensors. Although thermoelectric systems have attractive features in this context, the ability to maintain ...

General Physics Sep 16, 2015

Researchers achieve near-perfect absorption of sounds waves

(Phys.org)—A team of researchers at Hong Kong University of Science and Technology has found a way to create a material that is near perfect at preventing sound waves from passing through it. In their paper published in ...

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