Co Operation
Mostrando 13-24 de 291 artigos, teses e dissertações.
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13. Vignettes: a data collection technique to handle the differential operation of items in surveys
RESUMO Vignettes são cenários usados em diversas áreas de pesquisas acadêmicas cuja principal aplicação se relaciona às situações em que os julgamentos sobre as pessoas estão sujeitos a vieses ou distorções. Apesar do amplo uso em levantamentos, as recomendações para a sua criação são limitadas na literatura. Assim, este estudo objetiva revi
BBR, Braz. Bus. Rev.. Publicado em: 2019-02
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14. Reduction of fuel consumption using driving strategy in agricultural tractor
RESUMO No momento da aquisição e utilização de um trator agrícola, o consumo de combustível pelo motor deve ser levado em conta pelo usuário, tendo em vista sua origem não renovável e o preço de comercialização. Estratégias adequadas de condução de tratores podem auxiliar os usuários a reduzirem os custos de produção. Nesse contexto, objeti
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-02
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15. Fit-for-Purpose ICP-MS Procedure Supporting Brazilian Regulations on Inorganic Constituents in Fresh and Saline Waters
This work aimed the development of an analytical procedure using inductively coupled plasma mass spectrometry (ICP-MS) in four modes of operation for simple and fast determination of Al, Ag, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Li, Mg, Mn, Na, Ni, Pb, Sb, Se, Tl, Hg, V, U, and Zn in fresh and sea water samples attending simultaneously four Brazilian regula
J. Braz. Chem. Soc.. Publicado em: 2018-07
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16. Activity and Stability of Dispersed Multi Metallic Pt-based Catalysts for CO Tolerance in Proton Exchange Membrane Fuel Cell Anodes
ABSTRACT Studies aiming at improving the activity and stability of dispersed W and Mo containing Pt catalysts for the CO tolerance in proton exchange membrane fuel cell (PEMFC) anodes are revised for the following catalyst systems: (1) a carbon supported PtMo electrocatalyst submitted to heat treatments; (2) Pt and PtMo nanoparticles deposited on carbon-supp
An. Acad. Bras. Ciênc.. Publicado em: 16/04/2018
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17. Mechanical, Magnetic, and Microstructural Characterization of Ni0.9Co0.1Fe2O4 Produced by the Ceramic Method
Ni-Co ferrites, especially the ones with lower cobalt fractions, are candidate materials for applications in magnetomechanical sensors and electromagnetic wave absorbers. This work studied the microstructure, magnetostriction, flexural strength, and complex magnetic permeability of Ni0.9Co0.1Fe2O4, presenting data that weren't covered by previous literature
Mat. Res.. Publicado em: 22/02/2018
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18. Effect of Lime Addition to CaSO 4 Oxygen Carrier in Chemical Looping Combustion
Abstract Chemical-looping combustion (CLC), which has the characteristic of greenhouse gas CO2 inherent separation, is a novel combustion technology. In this study, CLC experiments of methane using CaSO4 oxygen carrier with lime addition were carried out in a batched fluidized bed reactor, where the sample was exposed to alternate oxidizing and reducing cond
Braz. J. Chem. Eng.. Publicado em: 2018-01
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19. Reproduction, feeding and migration patterns of Prochilodus nigricans (Characiformes: Prochilodontidae) in northeastern Ecuador
ABSTRACT The black prochilodus, Prochilodus nigricans, is an important food fish distributed throughout aquatic habitats of the Ecuadorian Amazon. We sampled gonad weight, body condition, and feeding of this species to address the question of whether changes in these biological parameters are related to hydrological variation and migration patterns. High fre
Neotrop. ichthyol.. Publicado em: 05/10/2017
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20. A model for multidimensional efficiency analysis of public hospital management
Abstract Introduction Multidimensional efficiency analysis can provide important insights into the performance of hospitals. In this paper, we propose a multidimensional model based on Data Envelopment Analysis (DEA) to investigate and compare the efficiency of public hospitals in Brazil. Methods Data from 21 public hospitals were collected from public dat
Res. Biomed. Eng.. Publicado em: 2017-10
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21. Metodologias para Estudos de Comportamento de Herbicidas na Planta e no Solo Utilizando Radioisótopos
RESUMO No Brasil, a Lei de Pesticidas (Lei no. 7.802/89) introduziu novos critérios ambientais, de saúde pública e de desempenho agronômico na análise das atividades que envolvem pesticidas. Assim, radioisótopos são utilizados nos estudos de comportamento ambiental e in planta porque apresentam algumas vantagens em relação às medidas químicas, inc
Planta daninha. Publicado em: 07/08/2017
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22. A Blue BRICS, Maritime Security, and the South Atlantic
Abstract Analysts frequently label the BRICS grouping of states (Brazil, India, Russia, China, and South Africa) as primarily an economic club emphasising economic performances as primary objectives. Co-operation of international groupings are rarely, if ever, set within the context of their access to maritime interests, security, and benefits. A second void
Contexto int.. Publicado em: 2017-08
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23. Maritime Co-operation among South Atlantic Countries and Repercussions for the Regional Community of Security Practice
Abstract This paper aims to examine the importance of co-operation for maritime security in the South Atlantic, focusing on the relationship between the national and sub-regional institutions that have leveraged this process, especially those from Brazil. For this purpose, the diagnosis addresses the debates around the contemporary roles of the navy and the
Contexto int.. Publicado em: 08/05/2017
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24. The Enabling Power of the Oceans
Abstract The importance of the oceans to humankind has been studied throughout the centuries, including in the fields of co-operation and conflict. This think piece synthesises discussions in international politics of some of the characteristics of oceans, especially discussions in the strategic-military domain, It contests those who consider oceans as a “
Contexto int.. Publicado em: 08/05/2017