Transfer Matrix
Mostrando 1-12 de 238 artigos, teses e dissertações.
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1. Temperature Dependent Emission Properties of ReI Tricarbonyl Complexes with Dipyrido-Quinoxaline and Phenazine Ligands
In this work, the emission properties of fac-[Re(CO)3(NN)(py)]+, NN = 1,10-phenanthroline (phen), dipyrido[3,2-f:2’,3’-h]quinoxaline (dpq) and dipyrido[3,2-a:2’3’-c]phenazine (dppz); py = pyridine were investigated in different temperatures, ranging from 80 to 300 K, and in different solvent mixtures and in polymethyl methacrylate. The changes observ
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Deduction of Electric Field Module in a Multilayer of Isotropic Materials to Detect Surface Plasmons with a Graphical User Interface
Abstract Electric field module for any isotropic multilayer thin film structure, is presented as analytical deduction. Analytic expressions for the electric field distribution are developed initially for a monolayer isotropic system based on Airy's formulae and boundary conditions, with an incident monochromatic source of light. The transfer matrix method 2�
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-03
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3. Calibration Strategies Applied to Laser-Induced Breakdown Spectroscopy: A Critical Review of Advances and Challenges
Over the years, laser-induced breakdown spectroscopy (LIBS) has been reported in the literature as an alternative to traditional methods of analysis, becoming well established among spectroanalytical techniques. LIBS is a technique widely used for qualitative approaches; however, it is necessary considerable effort for use in quantitative analysis, mainly du
J. Braz. Chem. Soc.. Publicado em: 2020-12
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4. Validation of a Standard Operating Procedure (SOP) for Forensic Soils Investigation in Brazil
ABSTRACT Soil traces are useful as forensic evidence due to their potential to transfer and adhere to different types of surfaces on a range of objects or persons. Several works have been developed in forensic soils, under different analytical approaches. However, in Brazil, only the researches from the Group of the Federal University of Paraná have develop
Rev. Bras. Ciênc. Solo. Publicado em: 09/09/2019
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5. Earliest identification of New Delhi metallo-β-lactamase 1 (NDM-1) in Acinetobacter pittii in Brazil
Abstract We report the occurrence in Brazil of the bla NDM-1 gene in Acinetobacter pittii, prior to the previously described first reports regarding the species Providencia rettgeri and Enterobacter hormaechei. Clinical isolates were investigated by polymerase chain reaction followed by bidirectional sequencing, and species was confirmed by 16S rDNA sequenci
Rev. Soc. Bras. Med. Trop.. Publicado em: 27/06/2019
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6. COMPETITIVENESS AND EFFICIENCY FOR THE RUBBER TREE PRODUCTION SYSTEM IN SOUTHERN BAHIA (BRAZIL) THROUGH BY THE POLICY ANALYSIS MATRIX (PAM)
RESUMO A presente pesquisa teve como objetivo analisar a competitividade e a eficiência econômica do sistema de produção da seringueira, no Sul do estado da Bahia, pela Matriz de Análise de Políticas (MAP). A análise foi dividida em quatro categorias: análise de lucratividade; análise de eficiência; análise de proteção e transferência líquida
Rev. Árvore. Publicado em: 11/02/2019
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7. A direct technique for the homogenization of periodic beam-like structures by transfer matrix eigen-analysis
Abstract To homogenize lattice beam-like structures, a direct approach based on the matrix eigen- and principal vectors of the state transfer matrix is proposed and discussed. The Timoshenko couple-stress beam is the equivalent continuum medium adopted in the homogenization process. The girders unit cell transmits two kinds of bending moments: the first is g
Lat. Am. j. solids struct.. Publicado em: 10/07/2018
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8. Free Vibration Characteristics of the Conical Shells Based on Precise Integration Transfer Matrix Method
Abstract Based on transfer matrix theory and precise integration method, precise integration transfer matrix method (PITMM) is advanced to research free vibration characteristics of the conical shells. The influences of the boundary conditions, the shell thickness and the semi-vertex conical angle on vibration characteristics are discussed. Based on Flügge
Lat. Am. j. solids struct.. Publicado em: 23/04/2018
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9. Enzymes immobilized in Langmuir-Blodgett films: Why determining the surface properties in Langmuir monolayer is important?
ABSTRACT In this review we discuss about the immobilization of enzymes in Langmuir-Blodgett films in order to determine the catalytic properties of these biomacromolecules when adsorbed on solid supports. Usually, the conformation of enzymes depends on the environmental conditions imposed to them, including the chemical composition of the matrix, and the mor
An. Acad. Bras. Ciênc.. Publicado em: 11/01/2018
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10. Fractographic and rheological characterizations of CF/PP-PE-copolymer composites tested in tensile
Abstract This work shows the fractographic study of fractured surfaces resulted from tensile tests of thermoplastic composites based on poly(propylene-co-ethylene) (PP-PE) and modified PP-PE copolymers reinforced with continuous carbon fibers (CF). The PP-PE matrix was modified with two agents called AM1 (based on maleic anhydride) and AM2 (containing an ela
Polímeros. Publicado em: 29/06/2017
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11. Entropy Generation Minimization Analysis of Active Magnetic Regenerators
Abstract A performance assessment of active magnetocaloric regenerators using entropy generation minimization is presented. The model consists of the Brinkman-Forchheimer equation to describe the fluid flow and coupled energy equations for the fluid and solid phases. Entropy generation contributions due to axial heat conduction, fluid friction and interstiti
An. Acad. Bras. Ciênc.. Publicado em: 2017-05
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12. Multi-Disciplinary System Design Optimization of a Launch Vehicle Upper-Stage
ABSTRACT: The design method presented in this paper is related to the upper-stage system and its instrumentation, expedition and facilitation so as to transfer the satellite from the destination orbit to the target orbit. We used an integrated design method with a structure based on multidisciplinary system design optimization and developed a simple systemat
J. Aerosp. Technol. Manag.. Publicado em: 2017-03