2,091 research outputs found
A Study on the Effects of C060 Gamma-radiation on Steam-grown Sio2 MOS Structures
Cobalt 60 gamma radiation effects on Metal Oxide Semiconductors /MOS/ with p-type and n-type silicon substrate
Theoretical and experimental studies of radiation induced damage to semiconductor surfaces and the effects of this damage on semiconductor device performance Final report, 1 Mar. 1964 - 31 Aug. 1968
Radiation damage on semiconductor surfaces and effects on performanc
Geometric and projection effects in Kramers-Moyal analysis
Kramers-Moyal coefficients provide a simple and easily visualized method with
which to analyze stochastic time series, particularly nonlinear ones. One
mechanism that can affect the estimation of the coefficients is geometric
projection effects. For some biologically-inspired examples, these effects are
predicted and explored with a non-stochastic projection operator method, and
compared with direct numerical simulation of the systems' Langevin equations.
General features and characteristics are identified, and the utility of the
Kramers-Moyal method discussed. Projections of a system are in general
non-Markovian, but here the Kramers-Moyal method remains useful, and in any
case the primary examples considered are found to be close to Markovian.Comment: Submitted to Phys. Rev.
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Modelling the risk of failure in explosion protection installations
This paper proposes a new algorithm to compute the residual risk of failure of an explosion protection system on an industrial process plant. A graph theoretic framework is used to model the process. Both the main reasons of failure are accounted for, viz. hardware failure and inadequate protection even when the protection hardware functions according to specifications. The algorithm is shown to be both intuitive and simple to implement in practice. Its application is demonstrated with a realistic example of a
protection system installation on a spray drier
The optimal driving waveform for overdamped, adiabatic rocking ratchets
The optimal driving waveform among a wide class of admissible functions for an overdamped, adiabatic rocking ratchet is shown to be dichotomous. 'Optimum' is defined as that which achieves the maximum (or minimum negative) average particle velocity. Implications for the design of ratchets, for example in nanotechnological transport, may follow. The main result is applicable to a general class of adiabatic responses. Much scope exists for further studies of ratchet waveform optimization in other regimes
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