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The growth process of nanocrystalline copper particles into single crystals, induced by electron irradiation, has been observed by TEM, and Kikuchi lines exist in its electron diffiaction microphotograph, indicating that the thickness of the single crystal formed by electron irradiation is more than 100nm.

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In order to use electron beam in brazing of precise structures and thermo-sensitive materials,accommodating every kinds of curve brazing seams,a vacuum electron beam brazing temperature closed loop control system was developed using PID controller,electron beam scanning track editing and on-line adjusting technologies,real-time acquisition and handling of brazing temperature.

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It was found that in the DC bias electric field, when the relaxation time of the hot-electrons in the electron-electron and electron-phonon interaction process is longer than the carrier life, the photoconductivity oscillation can be caused by the change of mobility in the process of optoelectronic transport, which is the main cause for the output electrical pulse to show oscillations.

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It is in electricity can one kind form,including negative electricity and positive electricity two kinds, made up of electron and proton they respectively, may be made up of the electron and positive electron too, usually with the static unit such as the static Coulomb(C or the tolerance of electromagnetic unit such as Coulomb(C , from the frictional electricity thing

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Under anaerobic condition, bacteria could respire with diverse noxious substances as terminal electronic acceptor. Electrons were transferred in the electron transport chain from electron donor to electron acceptor and formed trans-member proton concentration gradient, and were furthermore conserved into energy for metabolism.

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According to the fluorescence quenching and the fluorescence changing of mixed solution with irradiation time it was indicated that the photo-induced electron transfer between triazine as an electron acceptor and intra-molecular charge tranfer compounds as an electron donor have occurred in these systems.

通過熒光猝滅和體系熒光隨時間的變化可看到作為電子受體的三嗪分子和作為電子給體電荷轉移化合物間的光誘導電荷轉移作用。

When a valence electron leaves its bond to become a free electron, the hole left behind attracts a nearby electron.

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