hole model

hole model

(electronics)
A model of semiconductor behaviour in which donors contribute a positive charge equal in magnitude to the charge of an electron, and acceptors contribute space for such a charge within the crystal lattice. Honored by history well before electrons were discovered and described, much of electronics, especially at the engineering level, continues to consider current as flowing from positive to negative.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
In this paper, LS-DYNA numerical simulation platform is proposed to establish a single hole model of air-medium uncoupled charging blasting and water-medium uncoupled charging blasting, as shown in Figure 15, and the decouple coefficients of two models are all 1.5.
This newer explanation, the so-called "direct collapse black hole model," suggests that very large gas clouds - of between 10,000 and 100,000 solar masses - collapsed directly to become the seeds of the black holes.
The 2D crack and hole model and 3D meshing schematic diagram of BEM are shown in Figures 4 and 6.
Due to the fact that the blast holes studied in this paper are small in size and large in amount, it is inconvenient to build the blast hole model through the method of explosion load exertion in three-dimensional model.
As a moral idea or belief, we cannot prove its correctness mathematically, but the truth for the principle of spacetime black hole equivalence can be justified and validated through explaining various observations of the universe, such as CMB and supernova measurements, etc., and overcoming cosmic problems, such as dark energy and inflation problems, etc., in accordance with the black hole model of the universe that is developed on the basis of this principle.
Not everyone buys the black hole model of a quark-gluon plasma.
The remaining competitor to a black hole model for the heavyweight centers of galaxies has been the superdense star cluster.
Woosley has championed the supernova-black hole model to explain gamma-ray bursts.
In accordance with the black hole model of the universe developed recently by [21-22], a black hole constructs an individual spacetime (spatially singular and temporally noncausal to the outside) and a spacetime encloses a black hole.
Some theorists suggested reviving the black hole model in the mid-1980s as improved ground-based, visible-light observations (though still lacking full resolution of the core) continued to indicate an intense spike of light coming from M15's center.
3 some open problems of the common black hole model are pointed out and their relationship with the corresponding historical findings is emphasized.
The second group comprises three principal model approaches: cell, lattice, and Simha-Somcynsky hole models. In contrast to the preceding cell and lattice models, the Simha and Somcynsky hole theory (1) allows for both vacant sites on a lattice and variable cell volume.