Sentences with phrase «by applying an electric field»

Ferroelectrics are materials that exhibit a spontaneous electric polarization that can be reversed by applying an electric field.

In this technique, known as DNA translocation measurements, strands of DNA in a salt solution are driven through an opening in a membrane by an applied electric field.

By applying an electric field within the rat's brain, they found that they could get the transplanted stem cells to swim «upstream» against the fluid flow and natural cues and head for other locations within the brain.

In physical rehabilitation, therapeutic ultrasound heats deep tissues and can be used to improve the extensibility of connective tissues, decrease pain and muscle spasms, promote tissue healing, and improve the quality of scar tissue.30 Therapeutic ultrasound units generate an ultrasound wave by applying an electric field to an array of piezoelectric crystals located on the transducer surface.

Not exact matches

By applying a voltage across a carbon nanotube — a rolled - up sheet of carbon atoms — the team can generate a powerful electric field.

«By applying an intensity of 100 trillion watts per cm2, we were able to go beyond the Death Valley threshold and trap the electron near its parent atom in a cycle of regular oscillations within the electric field of the laser,» Jean - Pierre Wolf says enthusiastically.

The team used the strain induced by an electric field applied to a piezoelectric material (which deforms mechanically in response to an electric field) to manipulate the chirality of the domain wall.

By choosing a suitable metal and applying an electric field, the concentration of charge carriers in graphene and thus the conduction through the graphene can be influenced.

When a slimy smear of the bacteria is applied to a substrate, in this case a square chip of photosensitive material called SU - 8, you get a negatively charged microrobot that can move around in a fluid by riding the waves of an electric field.

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

Information is written by applying an external electric field, which changes the direction of the ferroelectric's polarization vector, and this in turn changes the shape of the potential barrier.

They pointed out that if magnetic or electric fields that varied over space were applied to atoms, the scattering force caused by the laser light would not necessarily be proportional to the light intensity.

AB - stacking of two layers of graphene leads to the formation of a material with semiconducting properties by applying an external electric field.

The recent prediction and experimental realization of standard type - I Weyl fermions in semimetals by two groups in Princeton and one group in IOP Beijing showed that the resistivity can actually decrease if the electric field is applied in the same direction as the magnetic field, an effect called negative longitudinal magnetoresistance.

Dielectrophoresis (DEP) is a scalable technique to electronically trap and manipulate biological cells, biomolecules and nanoparticles using electric field gradients that can be generated by applying a voltage bias between two electrodes.

Once a positive electric field is applied, the white particle moves to the top of the microcapsule becoming visible to the leader by making the ereader screen white at that specific location and once a negative electric field is applied the black particle behaves the same but making the screen appear darker at that location.

The matrix is initialized and refreshed by applying voltage to all conductors of the array of FETs simultaneously, thus using the plate having the FETs as one of the two electrodes for impressing an electric field over the gyricon medium.

The science behind epaper is called electrophoresis, and an electrophoretic display is basically the rearranging of charged pigment particles by applying a small electric field to them.

An electrophoretic display forms images by rearranging charged pigment particles with an applied electric field.