Computer Sciences

Sound, vibration recognition boost context-aware computing

Smart devices can seem dumb if they don't understand where they are or what people around them are doing. Carnegie Mellon University researchers say this environmental awareness can be enhanced by complementary methods for ...

Energy & Green Tech

Battery-free 'smart' toys move closer to commercial reality

Rubber duckies could soon be at the forefront of an electronic revolution. In ACS Sustainable Chemistry & Engineering, scientists report they have used specialized nanogenerators that gather energy from mechanical vibrations ...

Engineering

3-D printed active metamaterials for sound and vibration control

Researchers have been pushing the capabilities of materials by carefully designing precise structures that exhibit abnormal properties that can control acoustic or optical waves. However, these metamaterials are constructed ...

Engineering

Mystery solved: The case of the slipping finger

Haptics researchers have long known that applying ultrasonic vibrations to a flat, featureless glass plate makes it feel slippery. But they have also long debated why this occurs.

Engineering

Lattice structure absorbs vibrations

Researchers at ETH Zurich have developed a lattice structure capable of absorbing a wide range of vibrations while also being useful as a load-bearing component—for example, in propellers, rotors and rockets. It can absorb ...

Engineering

Listening to engine blades to stop failures, disasters

The roar of a jet or race car engine can nearly take one's breath away. Now imagine trying to hear through all that noise to pinpoint a problem with the engine—and stop a potentially disastrous failure.

Engineering

Novel device to improve powder flow

Anyone who has tried to pour powdered sugar into a jar knows that sometimes beating the sides of the container or package is the only way to make it flow. That same process is used in making medicines and products such as ...

Wearable motion sensors could save unborn babies

The thump, thump of a baby's heartbeat is a milestone in any pregnancy. Now, researchers at Stevens Institute of Technology have developed a technique that could allow expectant parents to hear their baby's heartbeat continuously ...

Engineering

Fiber-optic vibration sensors could prevent train accidents

Researchers have developed new sensors for measuring acceleration and vibration on trains. The technology could be integrated with artificial intelligence to prevent railway accidents and catastrophic train derailments.

Internet

Using vibration to curb digital addiction

In his research on college students' productivity, Cornell Tech graduate student Fabian Okeke heard many accounts of time lost to social media, beginning with a click over to Facebook or YouTube for a quick distraction.

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