Uncertainty analysis is an unavoidable risk assessment task (for instance for natural hazards, or for environmental issues). In situations where data are scarce, incomplete or imprecise, the systematic and only use of probabilities can be debatable. Over the last years, several alternative mathematical representation methods have been developed to handle in a more flexible manner the lack of knowledge related to input parameters of risk assessment models. This article presents an R package HYRISK dedicated to jointly handling different mathematical representation tools, namely probabilities, possibility distributions and probability functions with imprecise parameters, for the different stages of uncertainty treatment in risk assessments (i.e. uncertainty representation, propagation, sensitivity analysis and decision-making). We support the description using the case study of a dike stability analysis. The package is available at: https://cran.r-project.org/web/packages/HYRISK/index.html.
In this article, we introduce a new approach for Electro Thermal modeling of power LDMOS transistor. The electrical description of each intrinsic component is done with 3D Bi-Cubic Splines. The electrical model is coupled to a 3D thermal model stemming from FEA simulation. This full 3D Electro Thermal model is used with the ADS circuit simulator. L INTRODUCTIONThe growth of wireless communication requires to design base station low cost, linear, and high efficiency RF power amplifiers. The Power required for these amplifiers sometimes exceeds 120 W with a supply voltage lower than 30 V. The silicon LDMOS technology provides a good solution to these requirements. The design of RF power amplifiers is best achieved through the usage of non-linear electro thermal model, integrated in a circuit simulator. Several Electro thermal models have been developed, however none of them include the full thermal response of intrinsic components. In this article, we propose a new approach based on electric and thermal response of intrinsic components coupled to a thermal circuit stemming from FEM simulator A n~s , reduced by the Ritz's vector method proposed by IRCOM. U. STATEOFTHE.ART[l]
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.