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Mostrando ítems 1-10 de 2001
Formulation of the standard model in terms of spinor fields
(SPRINGER, 2009)
We propose an alternative formulation of the Standard Model which reduces the number of free parameters. In our framework, fermionic fields are assigned to fundamental representations of the Lorentz and the internal symmetry ...
The top right coupling in the aligned two-Higgs-doublet model
(Springer Verlag, 2017)
We compute the top quark right coupling in the aligned two-Higgs-doublet model. In the Standard Model the real part of this coupling is dominated by QCD-gluon-exchange diagram, but the imaginary part, instead, is purely ...
Fermion helicity flip and fermion oscillation induced by dynamical torsion field
(IOP Publishing, 2019-07)
We show that in theories of gravitation based in affine geometries the torsion field, that takes a dynamical character, produces the non-conservation of the helicity of fermion particles (spin precession). Such effect is ...
Introduction to the special issue on DSGE models for the Brazilian economy
(Sociedade Brasileira de Econometria, 2015-03-03)
Dynamic Stochastic General Equilibrium (DSGE) models have become thestandard framework for quantitative macroeconomic analysis in the world. Naturally,there is now a growing literature on DSGE models designed to study ...
Automatic detection of volcano-seismic events by modeling state and event duration in hidden Markov models
(Elsevier, 2016)
In this paper we propose an automatic volcano event detection system based on Hidden Markov Model (HMM) with state and event duration models. Since different volcanic events have different durations, therefore the state ...
SAMBA: stochastic analytical model with a Bayesian approach
(Sociedade Brasileira de Econometria, 2015-03-03)
We develop and estimate a DSGE model for the Brazilian economy as part of the macroe-conomic modeling framework of the Central Bank of Brazil. The model combines the building blocks of standard DSGE models (e.g., price and ...
Sideward movement
(M I T PressCambridgeEUA, 2001)
Temporal analysis of 911 emergency calls through time series modeling
(Springer, 2020)
We present two techniques for modeling time series of emergency events using data from 911 emergency calls in the city of Cuenca-Ecuador. We study state-of-the-art methods for time series analysis and assess the benefits ...
Multistage reliability-based expansion planning of AC distribution networks using a mixed-integer linear programming model
(2022-06-01)
A new mathematical model for the multistage distribution network expansion planning problem considering reliability is proposed in this paper. Decisions related to substation and branch expansion are driven by the minimization ...