Buscar
Mostrando ítems 1-10 de 497
A geometrical view of scalar modulation instability in optical fibers
(IEEE Photonics Society, 2017-09)
Full models of scalar modulation instability (MI) in optical fibers available in the literature usually involve complex formulations. In this paper, we present a novel approach to the analysis of MI in optical fibers by ...
Pectoral girdle and forelimb variation in extant Crocodylia: the coracoid–humerus pair as an evolutionary module
(Wiley Blackwell Publishing, Inc, 2013)
To date, all statements about evolutionary morphological transformation in Crocodylia have essentially been based on qualitative observations. In the present study, we assessed the morphological variation and covariation ...
Hyperbolic Geometrically Uniform Codes and Ungerboeck Partitioning on the Double Torus
(2022-03-01)
Current research builds labelings for geometrically uniform codes on the double torus through tiling groups. At least one labeling group was provided for all of the 11 regular tessellations on the double torus, derived ...
A geometric approach to 1-singular gelfand-tsetlin gln -modules
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE MATEMÁTICAUFMG, 2018-02)
Este artigo é dedicado a uma nova construção elementar de módulos de Gelfand – Tsetlin de 1 singular usando geometria complexa. Introduzimos um anel universal Dv junto com o espaço vetorial S = S (Dv) com base Bv = B (Dv) ...
Parkinson's disease effect on autonomic modulation: an analysis using geometric indices
(Assoc Arquivos Neuro- Psiquiatria, 2021-02-01)
Background: Parkinson's disease (PD) produces autonomic changes, indicating lower parasympathetic modulation and global variability, but these changes need further studying regarding geometric methods. Objective: To ...
A Geometric Approach for Turbo Decoding of Reed-Solomon Codes in QAM Modulation Schemes
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2009)
This work studies the turbo decoding of Reed-Solomon codes in QAM modulation schemes for additive white Gaussian noise channels (AWGN) by using a geometric approach. Considering the relations between the Galois field ...
Uma introdução à álgebra geométrica e aplicações em detecção de objetos em imagens
(BrasilDepartamento de MatemáticaPrograma de Pós-Graduação em MatemáticaUEMMaringá, PRCentro de Ciências Exatas, 2019)
Estratégias de modulação para conversores multiníveis em cascata sob faltas
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2012-01-20)
Multilevel converters are being increasingly employed nowadays, specially in mediumand
high-voltage industrial applications. Even though these converters are able to
synthesize output line-to-line voltages with a high ...