Sentences with phrase «electric fields»

After removing one of the atom's electrons, researchers trapped the atom using electric fields and cooled it to less than a thousandth of a degree above absolute zero -LRB--- 273.15 ° Celsius) by hitting it with laser light.

With Peidong Yang, Rohit Karnik, Rong Fan and their co-workers, Majumdar found that channels less than 100 nanometers across are tiny enough to enable electric fields to breach this shielding.

We know electric fields can be used to push the microrobots in any direction, like a boat carried by the ocean's currents, but in this paper we're exploring how those same fields can be used to help the robot detect obstacles and navigate around them,» Kim said.

Drexel University researchers have developed a way to use electric fields to control microrobots in a fluid and allow them to automatically sense obstacles and adjust their course en route to their destination.

A team of engineers at Drexel University might have done just that, according to research recently published in IEEE Transactions on Robotics about using electric fields to direct the robots in a fluid environment.

Weiss and colleagues at Penn State aim for a 30-fold improvement over the ACME result by creating a trap with lasers rather than electric fields.

For decades researchers have tried to control such mixing and separation by, among other things, applying electric fields.

In this way, the robots are using electric fields both as a mode of transportation and as a means of navigation.

The real push comes from two perpendicular electric fields that turn the fluid into an electrified grid.

«During regeneration, development, and cancer suppression, body patterning is subject to the influence of physical forces, such as electric fields, magnetic fields, electromagnetic fields, and other biophysical factors.

Electric fields can only be sensed from a distance of 10 cm or so, so they're not very useful for large animals like ourselves.

By swimming backwards such fish can identify the characteristic electric fields of their prey (Environmental Biology of Fishes, vol 36, p 157).

«With the same sensor you could measure magnetic fields, electric fields and now temperature, all with the same probe in the same place at approximately the same time,» he said.

They use electric fields to accelerate a beam of positively charged xenon gas ions, which shoot out of the spacecraft at speeds of up to 90,000 mph.

Researchers remotely control this DNA device, described in the Jan. 19 Science, with electric fields that tug on charged molecules in...

As a huge mass of displaced seawater — the start of a tsunami — moves through the Earth's magnetic field, electric fields are generated, which in turn induce secondary magnetic fields.

The resulting electric fields cause charged ions in the...

• The rapid discovery of fluoride - based multiferroic materials, which could allow for generating electric fields that would support more efficient electronic devices or be electronic responsive under a magnetic field.

The algorithm can also be used to explore how external electric fields can catalyze and control chemical reactions.

In the last few years, several experimental groups have shown that individual particles in fluid — when coaxed to spin by magnetic or electric fields — can form interesting collective structures.

Biologists control the electric fields around fake flowers (purple disks) to test how bees use them while navigating.

In the MMS mission, each of the four identical spacecraft has numerous instruments measuring magnetic and electric fields as well as the motion of ions and electrons.

This feature means the molecules can be controlled with electric fields and can interact strongly, even when far apart.

A high voltage is then applied across the gap, and the resulting electric fields convert the area between the electrode and the skin into non-thermal plasma.

Researchers remotely control this DNA device, described in the Jan. 19 Science, with electric fields that tug on charged molecules in its arm.

In the absence of magnetic and electric fields, zirconium pentatelluride has an even split of right - and left - handed quasiparticles.

Those electric fields help the nanomachine's arm move much more quickly than previous DNA robots, which relied on chemical interactions between DNA molecules to move (SN: 9/11/10, p. 18).

But adding parallel magnetic and electric fields introduces a chiral preference: The magnetic field aligns the spins of the positive and negative particles in opposite directions, and the electric field starts the oppositely charged particles moving — positive particles move with the electric field, negative ones against it.

Electric fields at the boundary should stop electrons falling into holes, allowing Majoranas to form.

TeslaTouch re-creates the sensation of texture by varying the electric fields on a touch screen.

They trap or isolate the ions from the rest of the environment using electric fields; once trapped, the ions strongly interact with each other.

All animals generate weak electric fields from the activity of their muscles and nerves.

Until now it hasn't been obvious how one could control magnetic domain walls reversibly and predictably using electric fields.

The findings may have implications in a variety of applications, he says, such as painting, producing synthetic fibers, and performing mass spectrometry, to name a few that depend on the precise control of tiny droplets of liquid augmented by electric fields.

Ute Neugebauer, who works at Leibniz - IPHT and the University Hospital Jena points to tiny electrodes that are fixed on the surface of a stamp - sized chip: «Electric fields secure bacteria in a very small area.»

The waves can also be controlled with electric fields and heat.

At a meeting of the Materials Research Society here yesterday, scientists described a pair of techniques for wiring up nano - sized chips — one that uses electric fields, the other DNA.

The kilometric radiation, he adds, is thought to result from electrons accelerated by electric fields in the planet's magnetosphere, and those electric fields also contribute to the generation of the polar auroras.

But Hayabusa has been hobbling home without the full use of its four ion engines, which ionise xenon gas and then use electric fields to accelerate the ions, providing a steady — though weak — thrust.

Working closely with his colleague in Singapore, the team experimented with electric fields and temperature to see how charge flows through different molecular diodes.

«Charge controls the ability to transport particles that are interacting with cells and other objects that possess electric fields,» he said.

Using applied electric fields and buffer chemistry, the researchers discovered several new levers that control peptide attachment.

Neural activity is detected through the highly localised electric fields generated when neurons fire, so densely packed, ultra-small measuring devices is important for accurate brain readings.

The feat opens up new possibilities in silicon carbide because its nanoscale defects are a leading platform for new technologies that seek to use quantum mechanical properties for quantum information processing, sensing magnetic and electric fields and temperature with nanoscale resolution, and secure communications using light.

In the promising reactor type tokamak, unwanted electric fields could jeopardise the entire process.

Once there, oscillating electric fields trapped the flakes in mid-air.

In their laboratory, Jonathan Home, professor of experimental quantum optics and photonics, and his colleagues catch a single electrically charged calcium ion in a tiny cage made of electric fields.

This photo shows a strontium atom suspended in electric fields.

Bumblebees can detect and make sense of electric fields using the tiny hairs on their body.

In the past two years David Awschalom and his colleagues at the University of California at Santa Barbara have demonstrated new and ultrafast means for generating, transporting, and manipulating spins in semiconductors at up to 100 GHz using electric fields.