S Formalism
Mostrando 1-12 de 88 artigos, teses e dissertações.
-
1. Tailoring the properties of Y2O3 via synthesis parameters varied during the PVA-assisted sol-gel route
Abstract The effect of synthesis parameters on the microstructural behavior and morphology during the yttrium oxide (Y2O3) formation is reported. Y2O3 crystals were produced by a modified sol-gel route assisted by polyvinyl alcohol solution varying the calcination temperature and solution pH. The crystalline phase formation was investigated using X-ray powde
Cerâmica. Publicado em: 2023
-
2. Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients
Ever-rising energy demand, fossil fuel dependence, and climate issues have harmful consequences to the society. Exploring clean and renewable energy to diversify the world energy matrix has become an urgent matter. Less explored or unexplored renewable energy sources like the salinity and proton gradient energy are an attractive alternative with great energy
J. Braz. Chem. Soc.. Publicado em: 2018-05
-
3. BIOMASS PYROLYSIS KINETICS: A REVIEW OF MOLECULAR-SCALE MODELING CONTRIBUTIONS
Abstract Decades of classical research on pyrolysis of lignocellulosic biomass has not yet produced a generalized formalism for design and prediction of reactor performance. Plagued by the limitations of experimental techniques such as thermogravimetric analysis (TGA) and extremely fast heating rates and low residence times to achieve high conversion to usef
Braz. J. Chem. Eng.. Publicado em: 2017-01
-
4. Inversion Method for Obtaining Electrical Parameters for Soil in the Rural Region in Brazil
AbstractThis paper presents an inversion methodology through weighted least squares to obtain the electrical parameters for the soil of a typical mid-western region in Brazil using the model based in the formalism of the parabolic equations to calculate the electric field intensity received. To validate this methodology, the results of the radio signal measu
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2015-06
-
5. Proposal of a new approach for BER evaluation of multirate, multiservice OCDMA systems / Proposta de uma nova abordagem para o cálculo da BER de sistemas OCDMA de múltiplas taxas e multiserviços
The continuous evolution of the optical communication technology in the last few years has allowed the growing users demand for higher bandwidth to be satisfactorily attended. This new demand is mainly attributed to the growing popularity of bandwidth-intensive networking applications, such as Internet protocol television (IPTV), high-definition television (
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2012
-
6. Um estudo das representações sociais sobre química de estudantes do ensino médio da educação de jovens e adultos paulistana / A study of social representations about chemistry of Sao Paulo\ s Youth and Adult Education students
The present work reports how the term \"chemistry\" is present in the views of students of the Youth and Adult Education of the public schools in São Paulo (Brazil). Serge Moscovici´s Theory of Social Representations, and its structural approach, the Central Nucleus Theory, as formulated by Jean Claude Abric, are the theoretical and methodological guidelin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/01/2012
-
7. O formalismo processual e o princípio da adaptabilidade dos procedimentos às exigências da causa : uma análise em face de princípios constitucionais
This paper aims at analyzing the Brazilian jurisdictional system, especially concerning the procedures and the powers of the judge while conducting the lawsuit, and at answering some questions such as: is it possible, based on the demands of the case, to apply the principle of procedural adaptability, propagated by the Italian doctrine, to our jurisdictional
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2011
-
8. A sentença parcial de mérito na perspectiva do formalismo-valorativo
This thesis aims to analyze the Partial Sentence of Merit from the perspective of Formalism with values as a way to achieve a faster judicial provision in terms of Brazilian Civil Procedure. For that there were the bibliographical and the jurisprudential research as paper´s methodology. The specific objective on this paper is about demonstrating the possibi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
-
9. Simulações de sensores de gás nanoscópicos baseados em nanotubos de carbono: estrutura eletrônica e transporte de elétrons / Computational simulations of nanoscopic gas sensors based on carbon nanotubes: electronic structure and electronic transport
Since their discovery by S. Iijima in 1991, carbon nanotubes have been considered as one of the most promising nanostructured materials for the development of new nanoscopic electronic devices. Due to its high surface area to volume ratio, this material stands out as a candidate for possible gas sensoring applications. In this thesis, we have studied, by mea
Publicado em: 2011
-
10. Transições de fase hádron-quark em estrelas de nêutrons
Recent advances on the field of high energy physics have enabled the study of matter under extreme conditions and, in this context, new states of matter are being discovered and speculated upon. Among these hypothetical states of matter is the one of deconfined quarks in high densities and/or temperatures. An environment with extreme densities and low temper
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
-
11. Estudo teÃrico das propriedades estruturais, eletrÃnicas e vibracionais de pontos quÃnticos de silÃcio e grafeno e cÃlculos no formalismo DFT aplicados a cristais de Ãcido Ãrico / Theoretical study of structural properties, electronic and vibrational of quantum dots silicon and graphene and calculations in the formalism DFT applied to uric acid crystals
Com a finalidade do desenvolvimento de novos nanodispositivos, hà um grande interesse em conhecer as propriedades eletrÃnicas de materias nanoestruturados. Sobretudo, como modificar as propriedades eletrÃnicas de nanoestruturas jà bem conhecidas de forma controlada. Com este objetivo, muitas metodologias e experimentos tem sido desenvolvidos. Neste traba
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2010
-
12. Final state interactions effects on kinetic energy sum spectra in nonmesonic weak decay
We analyze the effect of final state interactions (FSI) on coincidence spectra in nonmesonic hypernuclear weak decay, ΛN → nN, as a function of the kinetic energy sum, EnN = En+ E N, both for np and nn events. Adopting a formalism recently developed, the effects of FSI originated from the interaction between the outgoing nucleons and those in the residual
Brazilian Journal of Physics. Publicado em: 2010-09