electro-, electr-, electri-

In electronics, the generation of a DC voltage in a crystal or in a metallic material, due to acoustic waves traveling along the surface of the material.

The use of acoustic energy to create electromagnetic waves, usually with crystals or metals that react when bombarded with acoustic waves, and the processing of such waves prior to reproduction of the original sound.

1. Of or pertaining to electrical phenomena produced in living organisms; such as, that which is generated by muscle and nerve tissue.
2. The presence of electric current within muscular and neural tissue.
3. The production of electric power directly from biomass.

The use of techniques, tools, and knowledge gained in the study of the electrochemistry and physiology of living organisms.

Electrical production by living organisms.

A reference to the production of electricity by organisms.

1. In medicine, a reference to the application of electronic devices to living organisms for clinical testing, diagnosis, and therapy.
2. Relating to the study of electron transfer reactions as they occur in biological systems.

1. The study of the role of intermolecular transfer of electrons in biological regulation and defense.
2. The science of electronic effect and control of living organisms.

An electric phenomena associated with material flow and deformation in living systems or the flow of materials derived directly from such systems.

1. The science concerned with electromagnetic phenomena in ionized media encountered in interstellar space, in stars, and above the atmosphere.
2. The physics of the interactions of moving, charged particles and magnetic fields in planetary atmospheres, stars, and interstellar and intergalactic space.

A field of engineering that studies the design and functioning of electronics systems, circuits, and devices at temperatures approaching absolute zero (0 Kelvin or -270 degrees Celsius); especially as applied to the phenomenon of superconductivity.

An electron microscopic technique that involves freezing the biological sample in order to view the sample with the least possible distortion and the fewest possible artifacts. Abbreviated as cryo-EM.

In cryoelectron microscopy, the freezing of the sample is done in ethane slush to produce vitreous, or non-crystalline, ice. The frozen sample grid is then kept at liquid nitrogen temperature in the electron microscope and digital micrographs are collected with a camera.

The advantages of cryo-EM over traditional EM techniques include the preservation of the sample in a near-native hydrated state without the distortions from stains or fixatives needed for traditional EM. With image processing and averaging of multiple images, cyroelectron microscopy provides high resolution information (below 10 angstroms).

An angstrom is a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation.

An indication of the loss in dielectric property of a material.

This becomes very important at high drive levels for transducers, as it indicates the amount of heat generation one can expect in a piezoelectric device.

A method of storing data on microchips.

Usually bytes can be erased and reprogrammed individually. RFID tags that use EEPROM are more expensive than factory programmed tags, where the number is written into the silicon when the chip is made, but they offer more flexibility because the end user can write an ID number to the tag at the time the tag is going to be used.