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Fault-tree analysis is a useful analytic tool for the reliability and safety of complex system. However, fault tree is not suitable for repairable system. In this paper, we will propose a new method called TTF (time to failure) and TTM (time to maintenance) to analyze repairable system. Nevertheless, Monte Carlo simulation may be time consuming. In order to reduce simulation time, a parallel algorithm...
In the field of reliability and safety, Fault-tree analysis proved to be a useful analytic tool. Aimed at static or dynamic FTs, Monte Carlo simulation based on time-to-failure (TTF) may be an effective way to calculate FTs. Through computing the TTF of bottom events of FTs, the TTF of the system can be calculated easily. However, Monte Carlo simulation based on TTF is time-consuming because modern...
We present the Global View Resilience (GVR) system, a library that enables applications to add resilience in a portable, application-controlled fashion using versioned distributed arrays. We briefly describe GVR's interfaces for distributed arrays, versioning, and cross-layer error recovery. We illustrate how GVR can be used for rollback recovery and a wide range additional error recovery techniques...
Project evaluation in the process of investment decision-making is of great significance. This paper makes use of Ibbotson extension method to calculate the risk discount rate, and then evaluates NPV of the project. It puts forward an improved method aiming at the lack of real options and resorts to Monte Carlo for the volatility simulation of option, and finally realizes the sensitivity analysis...
A dopant-segregated Schottky barrier MOSFET is simulated by Monte Carlo method in this paper. The feature that dopant-segregated structure can improve on-current is revealed. The influence of dopant-segregated structure parameters on device performance is investigated, and the guideline for device design optimization is that the dopant-segregated region should overlay the whole Schottky barrier region...
This work employs single particle Monte Carlo method to calculation the electron mobility in graphene nanoribbons including phonon scattering (acoustic and optical) and line edge roughness scattering. Mobility as high as 2 times 104 cm2/Vs is obtained and when the GNRs width is 2 nm, the mobility reduces to only about 200 cm2/Vs. These results agree well with experiment results. Also the effect of...
In this paper, we demonstrate a Monte Carlo simulator for ambipolar Schottky barrier MOSFETs which includes tunneling and thermal emission of electrons and holes and the appropriate treatment of carrier transport at nano-scale. The ambipolar characteristic of SB MOSFETs is reproduced by this simulator. The four operation modes in both n and p SB MOSFETs are revealed. Based on these simulations, it...
In this paper, we performed a simulation on a 45-nm UTB SOI Schottky Barrier MOSFETs using our two dimensional Ensemble full band Monte Carlo simulator to evaluate the effect of scattering in Schottky Barrier MOSFETs (SB FETs). The carrier transport details for both ballistic case and scattering case are simulated and analyzed. The scattering plays a less important role on the performance in SB FETs...
The impact of gate misalignment on the performance of dopant-segregated Schottky Barrier MOSFET (DS SBTs) and on the carrier transport is investigated by Monte Carlo method. The simulation results show that gate misalignment with dopant-segregated structure (DSS) has less significant impact on drain current than that without DSS. The influence of gate misalignment with DSS becomes notable only when...
The copper interconnect comes into nanometers with the scaling down of device dimension. At the same time, the resistivity is increasing and the characteristic gets worse. In our paper, an optimal aspect ratio (AR) for Cu-line is found by Monte-Carlo (MC) method so that we can get the optimized electric conductivity and improve the performance of interconnection.
Nodes localization in mobile sensor networks can be dealt as a problem of mobile object tracking. The particle filters algorithm which is based on Bayesian estimation and Monte Carlo method is an effective tool to deal with these problems. The particle filters algorithm adopts a series of weighted particles to represent the possible position of a mobile object, and then makes use of the present observation...
Recently a novel device structure called dopant-segregated Schottky barrier MOSFETs (DSS SBTs) has been proposed where the Schottky barrier height can be significantly reduced thus achieving much larger drain currents. Although quite a few experimental studies have been performed on this structure, further investigation on the carrier transport mechanism is required for the optimization of device...
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