System Dynamic
Mostrando 13-24 de 1521 artigos, teses e dissertações.
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13. DESIGN OF ELECTRONIC CONTROL GOVERNOR FOR A SINGLE CYLINDER GASOLINE ENGINE BASED ON AN INTELLIGENT SENSING ALGORITHM
ABSTRACT At present, most large machinery and vehicle engines are electronically controlled but their electronic control systems are too expensive to be popularised and applied in small gasoline engines with relatively low prices. Therefore, small gasoline engines still use mechanical speed regulators. Mechanical speed regulators not only have the defects of
Eng. Agríc.. Publicado em: 2020-08
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14. GRAIN STORAGE SYSTEM IN THE STATE OF PARANÁ, BRAZIL, FROM THE PERSPECTIVE OF MULTIVARIATE ANALYSIS
ABSTRACT This study aimed to identify whether there is an association between types of storage and categories of commercialization and use of grains, group the types of storage with the categories of commercialization, and group static and dynamic capacities of the units in the state of Paraná, Brazil. The data were obtained from the Brazilian Registry Syst
Eng. Agríc.. Publicado em: 2020-06
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15. The role of L1 English speakers’ familiarity with Brazilian-accented English (L2) in the intelligibility of Brazilian learners of English (L2): a discussion on intelligibility from a Complex Dynamic Systems perspective
Abstract The aim of this study is to investigate the effect of familiarity with Brazilian-accented English (L2) in the intelligibility of speech samples when judged by native English listeners. Speech samples were collected from five native Brazilian Portuguese individuals from Southern Brazil, with a pre-intermediate level of proficiency in English. Followi
Ilha Desterro. Publicado em: 2020-04
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16. Chitosan-Sodium Alginate Polyelectrolyte Complex Coating Pluronic® F127 Nanoparticles Loaded with Citronella Essential Oil
Pluronic® F127 nanoparticles were loaded with citronella essential oil (CEO) and then covered with chitosan-sodium alginate polyelectrolyte complex (PEC). The system was characterized according to size, zeta potential and stability over time. Dynamic light scattering (DLS) in different proportions of water/ethanol as a dispersive medium was important in con
J. Braz. Chem. Soc.. Publicado em: 2020-04
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17. Dynamic risk calculation model applied to gas compressor
Abstract The present article proposes to apply a Risk-Based Maintenance methodology in a gas compression system. This risk calculation is based on a semi-quantitative mathematical model that uses the interdependence of process variables and predictive maintenance data applied in a Condition-Based Maintenance methodology, in order to obtain the calculation of
REM, Int. Eng. J.. Publicado em: 2020-03
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18. Mente e Awareness nos Tantras Indianos: fundamentos da Meditação, do Hatha Yoga e do Ayurveda
Resumo Apesar da crítica à concepção cartesiana do ser humano, faltam modelos teórico-conceituais que superaram suas limitações, a despeito do destaque dado à integralidade no Brasil. A base filosófica que fundamenta as abordagens dominantes é implícita, até nos modelos orientais importados como nas medicinas tradicionais e Práticas Integrativas
Fractal, Rev. Psicol.. Publicado em: 20/12/2019
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19. A LÓGICA INTERNA DO VOLEIBOL SOB AS LENTES DA PRAXIOLOGIA MOTRIZ
RESUMO Como um dos esportes mais praticados no contexto brasileiro, o Voleibol configura-se como uma prática dinâmica, em que seus jogadores interagem cooperativa e opositivamente com os demais participantes. Nesse contexto, a Praxiologia Motriz surgi como uma teoria referente a jogos e esportes que objetiva desvelar a lógica interna dessas práticas motr
J. Phys. Educ.. Publicado em: 20/12/2019
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20. CAPITALISM, SLAVERY AND THE MAKING OF BRAZILIAN SLAVEHOLDING CLASS: A THEORETICAL DEBATE ON WORLD-SYSTEM PERSPECTIVE
Resumo Esse artigo apresenta um debate teórico em perspectiva global e sistêmica sobre as relações entre escravidão e capitalismo no processo de formação da classe senhorial brasileira no século XIX, tomando-se o Vale do Paraíba como região central nesse processo. Tendo por base o conceito da Segunda Escravidão, a expansão das fazendas de café n
Almanack. Publicado em: 13/12/2019
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21. Here Today, Gone Tomorrow - Political Ambition, Coalitions, and Accountability as Determinants of Ministerial Turnover in the Brazilian Multiparty Presidential System
The article aims at understanding the determinants of ministerial turnover in presidential systems. There are essentially three key factors that govern the propensity for ministerial turnover in a presidential system: 01. political ambition - reflected in the individual or collective strategies and tactics employed by the party-affiliated actors represented
Bras. Political Sci. Rev.. Publicado em: 09/12/2019
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22. INTEGRATING REAL TIME OPTIMIZATION AND MODEL PREDICTIVE CONTROL OF A CRUDE DISTILLATION UNIT
Abstract This work reports the integration of Real Time Optimization and Model Predictive Control in the multi-layer control structure of an existing Crude Distillation Unit (CDU) of an oil refinery. The MPC considers output control zones and targets for the inputs or outputs. Both the infinite horizon and the finite output horizon controllers were tested. T
Braz. J. Chem. Eng.. Publicado em: 09/12/2019
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23. SYNTHESIS, CHARACTERIZATION, ADSORPTION AND THERMODYNAMIC STUDIES OF PURE AND BINARY CO2-N2 MIXTURES ON OXYGEN ENRICHED NANOSTRUCTURED CARBON ADSORBENTS
Abstract Oxygen enriched porous carbons have been synthesized by a nanocasting technique using mesoporous zeolite as template and epoxy resin as precursor. Characterization results show the effect of the nanocasting technique on the development of heterogeneous surface, high basicity, and high surface area of 686.37 m2g-1, beneficial for CO2 adsorption. Pure
Braz. J. Chem. Eng.. Publicado em: 09/12/2019
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24. BEST PRACTICES IN NEONATAL NURSING CARE MANAGEMENT
RESUMO Objetivo: construir uma matriz teórica do sistema/organização de cuidado de Enfermagem em Unidade de Terapia Intensiva Neonatal a partir dos significados atribuídos pelos profissionais da Equipe de Enfermagem e demais atores envolvidos sobre as relações e interações do cuidado no lidar com a fragilidade do viver/sobreviver do neonato. Méto
Texto contexto - enferm.. Publicado em: 09/12/2019