Electron beams are used in welding, which allows energy densities up to across a narrow focus diameter of and usually does not require a filler material.

Electron densities are often be rendered in terms of an isosurface ( an isodensity surface ) with the size and shape of the surface determined by the value of the density chosen, or in terms of a percentage of total electrons enclosed.

Electron states are best represented by time-depending " mixtures " ( linear combinations ) of multiple orbitals.

There are at least 500 known games for the Electron and the true total is probably in the thousands.

FireTrack exploits a division in the way the Electron handles its display — of the seven available graphics modes, two are configured so that the final two of every ten scanlines are blank and are not based on the contents of RAM.

Notable enterprises which produced discs of such software are BBC PD, Electron User Group and HeadFirst PD.

( C ) 1983 Acorn Computers Ltd. Thanks are due to the following contributors to the development of the Electron ( among others too numerous to mention ):- Bob Austin, Astec, Harry Barman, Paul Bond, Allen Boothroyd, Ben Bridgewater, Cambridge, John Cox, Chris Curry, 6502 designers, Jeremy Dion, Tim Dobson, Joe Dunn, Ferranti, Steve Furber, David Gale, Andrew Gordon, Martyn Gilbert, Lawrence Hardwick, Hermann Hauser, John Herbert, Hitachi, Andy Hopper, Paul Jephcot, Brian Jones, Chris Jordan, Computer Laboratory, Tony Mann, Peter Miller, Trevor Morris, Steve Parsons, Robin Pain, Glyn Phillips, Brian Robertson, Peter Robinson, David Seal, Kim Spence-Jones, Graham Tebby, Jon Thackray, Topexpress, Chris Turner, Hugo Tyson, John Umney, Alex van Someren, Geoff Vincent, Adrian Warner, Robin Williamson, Roger Wilson.

Electron avalanches are essential to the dielectric breakdown process within gases.

There are a number of common, standard and manufacturer-driven numbering and coding schemes for diodes ; the two most common being the EIA / JEDEC standard and the European Pro Electron standard:

Electron microscopes are used to observe a wide range of biological and inorganic specimens including microorganisms, cells, large molecules, biopsy samples, metals, and crystals.

Electron microscopes are expensive to build and maintain, but the capital and running costs of confocal light microscope systems now overlaps with those of basic electron microscopes.

For discrete devices, for example, there are three standards: JEDEC JESD370B in United States, Pro Electron in Europe and Japanese Industrial Standards ( JIS ) in Japan.

Electron beam tomography is a specific form of CT in which a large enough X-ray tube is constructed so that only the path of the electrons, traveling between the cathode and anode of the X-ray tube, are spun using deflection coils.

Electron transport chains are the cellular mechanisms used for extracting energy from sunlight in photosynthesis and also from redox reactions, such as the oxidation of sugars ( respiration ).

Electron transport chains are major sites of premature electron leakage to oxygen, generating superoxide and potentially resulting in increased oxidative stress.

Solvent-based Inks, Water-based Inks, EB ( Electron Beam ) curing inks, UV ( ultraviolet ) Curing Inks and two-part chemically-curing inks ( usually based on polyurethane isocyanate reactions ), although these are uncommon at the moment.

Electron capture for almost all non-noble gas atoms involves the release of energy and thus are exothermic.

Electron lenses are designed to act in a manner emulating that of an optical lens, by focusing parallel rays at some constant focal length.

Electron lenses are manufactured from iron, iron-cobalt or nickel cobalt alloys, such as permalloy.

Electron beams are useful for treating superficial lesions because the maximum of dose deposition occurs near the surface.

Electron beam lithography ( often abbreviated as e-beam lithography ) is the practice of scanning a beam of electrons in a patterned fashion across a surface covered with a film ( called the resist ), (" exposing " the resist ) and of selectively removing either exposed or non-exposed regions of the resist (" developing ").

Electron emission that takes place in the field-and-temperature-regime where this modified equation applies is often called Schottky emission.

Electron deficient bonds are often better described as 3-center-2-electron bonds.

Electron lithograph is a device in which a very fine electron beam is used to create micro-structures in the resist that can subsequently be transferred to the substrate material, often by etching.

Electron beam lithography ( often abbreviated as e-beam lithography ) is the practice of emitting a beam of electrons in a patterned fashion across a surface covered with a film ( called the resist ), (" exposing " the resist ) and of selectively removing either exposed or non-exposed regions of the resist (" developing ").

Electron microscopy studies demonstrated that thermal antiphase boundaries ( APBs ) form during cooling through the ordering temperatures, as ordered domains nucleate at different centers within the crystal lattice and are often out of step with each other where they meet.

The Electron was developed during 1983 as a cheap sibling for the BBC Micro with the intention of capturing the low-cost Christmas sales market for that year.

Despite this, several features that would later be associated with BBC Master and Archimedes were first features of Electron expansion units, including ROM cartridge slots and the Advanced Disc Filing System — a hierarchical improvement to the BBC's original Disc Filing System.

An Acorn Electron with Plus 1 expansion unit attached

Notable popular games particularly associated with the Electron include: Crystal Castles ( video game ) | Crystal Castles is an example of a popular arcade game officially ported to the Electron ( US Gold ).

See also the list of Acorn Electron games for a fairly comprehensive list of games published for the machine and: Category: BBC Micro and Acorn Electron games for a list of games with information on Wikipedia.

Blu-Tack looked at with a Scanning Electron Microscope

# Electron in the initial state is represented by a solid line with an arrow pointing toward the vertex (→•).

# Electron in the final state is represented by a line with an arrow pointing away from the vertex: (•→).

During these movements, some electrons collide with a gaseous molecule to form a pair of an ion and an electron ( Electron ionization ).

Photomicrograph made with a Scanning Electron Microscope ( SEM ): Fly ash particles at 2, 000x magnification.

Electron capture is the primary decay mode for isotopes with a relative superabundance of protons in the nucleus, but with insufficient energy difference between the isotope and its prospective daughter ( with one less positive charge ) for the nuclide to decay by emitting a positron.

Electron capture also exists as a viable decay mode for radioactive isotopes with sufficient energy to decay by positron emission, where it competes with positron emission.

This was also the start of other " plug-in "- type experimental AMC vehicles developed with Gulton – the Amitron and the Electron.

* Quantum Computing with an Electron Spin Ensemble

PET scanning ( Positron Electron Tomography ) a study by Alan Zametkin shows a change in glucose metabolism in the brain in the condition Minimal Brain Dysfunction and the book " The Oxygen Revolution " by Paul Harch, MD shows how PET scanning helps in his evaluation of SCUBA divers with a type2 ( neurologic ) hit.

These cards are similar to closed system prepaid cards, but are endorsed by a retail electronic payments network such as Visa, Visa Electron, MasterCard, or Maestro and can, unlike gift cards, be used anywhere debit cards with the same logo may be used.