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Search results for fluid mechanics

Biochemistry Mar 18, 2025

Antibiotic-resistant bacteria more vulnerable under body-like fluid flow conditions, study finds

Some notoriously difficult-to-treat infections may not be as resistant to antibiotics as has been thought, according to new research using a microfluidic device that more closely duplicates the fluid flow found in the body ...

General Âé¶¹ÒùÔºics Mar 11, 2025

The dynamic acoustics of clapping: How hand shape affects sound

In a scene toward the end of the 2006 film, "X-Men: The Last Stand," a character claps and sends a shock wave that knocks out an opposing army. Sunny Jung, professor of biological and environmental engineering in the College ...

General Âé¶¹ÒùÔºics Feb 25, 2025

Bubbles that break rules: A fluid discovery that defies logic

A team led by researchers at UNC-Chapel Hill have made an extraordinary discovery that is reshaping our understanding of bubbles and their movement. Picture tiny air bubbles inside a container filled with liquid. When the ...

Molecular & Computational biology Feb 24, 2025

Single-cell RNA analysis reveals key immune mechanisms in lungs of pigs infected with reproductive and respiratory virus

Porcine reproductive and respiratory syndrome virus (PRRSV) infection in pigs is economically devastating for the global swine industry. The viral infection leads to reproductive disorder in sows and respiratory problems ...

Soft Matter Feb 21, 2025

High-speed videos show what happens when a droplet splashes into a pool

Rain can freefall at speeds of up to 25 miles per hour. If the droplets land in a puddle or pond, they can form a crown-like splash that, with enough force, can dislodge any surface particles and launch them into the air.

Biochemistry Feb 17, 2025

Engineers create new glue that mimics mussels and mucus to prevent bacterial buildup

Within the animal kingdom, mussels are masters of underwater adhesion. The marine mollusks cluster atop rocks and along the bottoms of ships, and hold fast against the ocean's waves thanks to a gluey plaque they secrete through ...

Polymers Feb 13, 2025

New 3D printing technique replicates nature's delicate fibers with precision

Researchers have been trying to find new ways to produce and replicate the various useful features observed in nature. Fine hairs and fibers, which are ubiquitous in nature, are useful for various applications ranging from ...

Cell & Microbiology Feb 13, 2025

Bacterial flagellar motors: Study sheds light on their ion-driven mechanisms

When speaking of motors, most people think of those powering vehicles and human machinery. However, biological motors have existed for millions of years in microorganisms. Among these, many bacterial species have tail-like ...

General Âé¶¹ÒùÔºics Feb 6, 2025

Study reveals how swimming speed alters foot vortex dynamics

When humans kick swim through water, vortices form around their legs, generating the force that propels them forward. However, the mechanisms underlying variations in the structure of these vortices with swimming speed remain ...

General Âé¶¹ÒùÔºics Jan 29, 2025

Unified model scales pressure fluctuation in an accelerated liquid

A research team from Japan has developed a unified model to scale the transitional pressure development in a one-dimensional flow. This achievement provides a better understanding of how pressure fields build up in the confined ...

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