Tuning
Mostrando 13-24 de 498 artigos, teses e dissertações.
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13. Tuning Emitting Color of Electroluminescent Devices Containing Tris(2-acyl-1,3-indandionate)aluminum(III) Complexes as Emitting Layers
In this study, a novel type of tris(2-acyl-1,3-indandione)-aluminum(III) coordination compounds of the general formula [Al(acind)3]H2O, where 2-acyl-1,3-indandione (acind), 2-acetyl-1,3-indandione (aind), 2-benzoyl-1,3-indandione (bind), and 4-methyl-2-benzoyl-1,3-indandione (mbind), were synthesized and characterized by elemental analysis (CHN), Fourier tra
J. Braz. Chem. Soc.. Publicado em: 12/08/2019
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14. Tuning Techniques Evaluation for Satellite Launch Vehicle Attitude Controllers
ABSTRACT: This communication presents a comparative analysis of tuning techniques for satellite launch vehicle attitude controllers. The investigated tuning techniques consist in the minimization of specific performance indexes, namely the Integral Absolute Error (IAE) index, the Integral of Time Multiplied Absolute Error (ITAE) index, the Integral Squared E
J. Aerosp. Technol. Manag.. Publicado em: 09/05/2019
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15. Contralateral Occlusion Test (COT): the effect of external ear canal occlusion with aging
RESUMO Objetivo O objetivo deste estudo foi avaliar o efeito da oclusão completa do canal auditivo externo nos limiares auditivos, em indivíduos de idades distintas, para apurar qual o diapasão mais adequado na realização do teste de oclusão contralateral (TOC). Método 42 indivíduos normo-ouvintes (21-67 anos) foram divididos em três grupos etá
CoDAS. Publicado em: 18/04/2019
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16. Extremum Seeking-based Adaptive PID Control applied to Neuromuscular Electrical Stimulation
Abstract A multivariable deterministic extremum seeking (ES) is being evaluated to construct an adaptive Proportional-Integral-Derivative (PID) control law for the functional Neuromuscular Electrical Stimulation (NMES) of stroke patients. The developed scheme is applied to control the position of the patient’s arm so that movements of flexion/extension for
An. Acad. Bras. Ciênc.. Publicado em: 14/02/2019
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17. Analysis of a tuned liquid column damper in non-linear structures subjected to seismic excitations
Abstract The behavior of the tuned liquid column damper (TLCD) is analyzed in the control of non-linear structures subjected to random seismic excitations. The structure is modeled as a system of one degree of freedom with incursion in the non-linear range. The Bouc-Wen hysteretic model is used to model the non-linear behavior of the structure. A stationary
Lat. Am. j. solids struct.. Publicado em: 19/07/2018
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18. Study on the Mixed-Mode HPLC Separation of Shuang-Huang-Lian and Xue-Bi-Jing Injections Based on an Ionic Liquid Column
Both Shuang-Huang-Lian and Xue-Bi-Jing injections are clinically proven efficient and low cost medicines. However, the studies of their chromatographic separation are limited. In this study, a column based on ionic liquid stationary phase was applied for the first time for the analysis of these two injections. For Shuang-Huang-Lian injection, U-shaped plots
J. Braz. Chem. Soc.. Publicado em: 2018-07
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19. Controlled synthesis of noble metal nanomaterials: motivation, principles, and opportunities in nanocatalysis
ABSTRACT This review describes some principles of the controlled synthesis of metal nanoparticles, focusing on how the fundamental understanding of their synthesis in the solution-phase can be put to tailor size, shape, composition, and architecture. The maneuvering over these parameters not only enable the tuning of properties, but also the maximization and
An. Acad. Bras. Ciênc.. Publicado em: 16/04/2018
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20. Characterization of Switchable Rectangular Ring FSS with Non Coupled Parallel Metallic Strips for Multi Band and Dual Polarized Applications Using WCIP Method
Abstract In this paper, a rectangular metallic ring FSS (Frequency Selective Surfaces) with parallel metallic strips for multi band applications are characterized by the WCIP (Wave Concept Iterative Procedure) method. The proposed FSS structures are made of metallic elements that are simultaneously independent in the spatial domain and uncoupled in the spect
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2018-03
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21. Brazilian Bioluminescent Beetles: Reflections on Catching Glimpses of Light in the Atlantic Forest and Cerrado
ABSTRACT Bioluminescence - visible and cold light emission by living organisms - is a worldwide phenomenon, reported in terrestrial and marine environments since ancient times. Light emission from microorganisms, fungi, plants and animals may have arisen as an evolutionary response against oxygen toxicity and was appropriated for sexual attraction, predation
An. Acad. Bras. Ciênc.. Publicado em: 2018
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22. Investigation of Electrocatalysts for Selective Reduction of CO2 to CO: Monitoring the Reaction Products by on line Mass Spectrometry and Gas Chromatography
The carbon dioxide electrocatalytic reduction is central for the development of regenerative cycles of electrochemical energy conversion and storage. Herein, the gaseous products of the CO2 electroreduction were monitored by using an electrochemical cell on line coupled to a differential electrochemical mass spectrometer (DEMS), aiming at searching for elect
J. Braz. Chem. Soc.. Publicado em: 2017-09
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23. Sociomaterial Practices: Challenges in Developing a Virtual Business Community Platform in Agriculture
Abstract Virtual business communities (VBC) are virtual networks of people who share common interests and comprise online software platforms that enables the fast exchange of information, collaboration and business interactions. From 2011 to 2015, we developed a design science research to create a VBC platform for an agricultural cluster of flower growers in
BAR, Braz. Adm. Rev.. Publicado em: 07/08/2017
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24. Atenciografia do Corpo: interseções entre Lisa Nelson e Gilbert Simondon a partir de um fragmento de relato
Resumo: O artigo propõe uma interseção entre arte e filosofia aproximando uma prática de atenção em uma seção de Tuning Scores, descrita pela coreógrafa e video-maker americana Lisa Nelson, à relação do indivíduo com o meio e com outros indivíduos, pensada pelo filósofo francês Gilbert Simondon. O fragmento de descrição de Lisa Nelson acerc
Rev. Bras. Estud. Presença. Publicado em: 2017-04