منابع مشابه
Role of disinfection in the Infection Prevention Multibarrier System
The role of disinfection in infection prevention has been analyzed over the past 50 years both in the form of benefit-risk evaluations as well as in an epidemiological sense. This has served as the basis for not only national and international guidelines and recommendations, but has also created the legal and normative framework for regulation of infection control (and hence of disinfection) in...
متن کاملBand-gap structure and singular character of bounded one-dimensional multibarrier potential
The bounded one dimensional multibarrier potential shows signs of chaos, phase transition and a transmission probability of unity for certain values of its total length L and the ratio c of total interval to total width. Like the infinite Kronig-Penney system, which is arranged along the whole spatial region, the bounded multibarrier potential has a band-gap structure in its energy spectrum. Bu...
متن کاملPhase transitions in a one - dimensional multibarrier potential of finite range
We have previously studied properties of a one-dimensional potential with N equally spaced identical barries in a (fixed) finite interval for both finite and infinite N. It was observed that scattering and spectral properties depend sensitively on the ratio c of spacing to width of the barriers (even in the limit N → ∞). We compute here the specific heat of an ensemble of such systems and show ...
متن کاملA THEORY OF VACUUM TUNNELING MICROSCOPY1
A theory for tunneling between a real surface and a model probe tip, applicable to the "scanning tunneling microscope" is presented. The tunneling current is found to be proportional to the local density of states of the surface, at the position of the tip. It can be shown that the tunneling conductance has exponential dependence on the distance of the nearest approach to the surface
متن کاملNumerical modeling of tunneling induced ground deformation and its control
Tunnelling through cities underlain by soft soil, commonly associated with soil movement around the tunnels and subsequent surface settlement. The predication of ground movement during the tunnelling and optimum support pressure could be based on analytical, empirical or the numerical methods. The commonly used Earth pressure balance (EPB) tunneling machines, uses the excavated soil in a pressu...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2003
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.67.016609