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Mostrando 1-12 de 209 artigos, teses e dissertações.
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1. Internationalization of China’s medical device industry: a case study in Brazil
Abstract Purpose The singularity of being the first Chinese manufacturer of drug-eluting stents to arrive in Brazil and the country being selected as the company's first experience outside its home country motivated the interest in the study of this case, vis-à-vis with the characteristic of internationalization medical device companies according to the Up
RAUSP Management Journal. Publicado em: 2022
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2. Colletotrichum nymphaeae var. entomophilum var. nov. a natural enemy of the citrus scale insect, Praelongorthezia praelonga (Hemiptera: Ortheziidae)
ABSTRACT: The citrus scale insect Praelongorthezia praelonga (Douglas), a major pest of citrus and other economically important crops, has only two commonly documented natural enemies: an entomopathogenic strain of the fungus Colletotrichum nymphaeae (Pass.) Aa and several parasitoids. The entomopathogenic strain of C. nymphaeae, formerly recognized under th
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/12/2019
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3. ENERGY AND EXERGETIC EVALUATION OF THE MULTICOMPONENT SEPARATION OF PETROCHEMICAL NAPHTHA IN FALLING FILM DISTILLATION COLUMNS
Abstract Multicomponent separation of synthetic petrochemical naphtha (hexane, cyclohexane, toluene and xylene) was carried out in a falling film distillation sequence with heat supply using a vapor chamber (thermosyphon). Tests were carried out by varying feed flow rate and temperatures of the feed and the vapor chamber in two ways of heat supply: isotherma
Braz. J. Chem. Eng.. Publicado em: 09/12/2019
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4. Rapid Generation of Particle Packs at High Packing Ratios for DEM Simulations of Granular Compacts
Abstract In this work we present a simple, fast technique for generating particle packs at high packing ratios aiming at the simulation of granular compacts via the discrete element method (DEM). We start from a random sequence addition particle generation algorithm to generate a "layer" of non-overlapping spherical particles that are let to evolve dynamical
Lat. Am. j. solids struct.. Publicado em: 2016-01
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5. Sex determination in annual fishes: searching for the master sex-determining gene in Austrolebias charrua (Cyprinodontiformes, Rivulidae)
Evolution of sex determination and differentiation in fishes involves a broad range of sex strategies (hermaphroditism, gonochorism, unisexuality, environmental and genetic sex determination). Annual fishes inhabit temporary ponds that dry out during the dry season when adults die. The embryos exhibit an atypical developmental pattern and remain buried in th
Genet. Mol. Biol.. Publicado em: 13/05/2014
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6. FLEXIBLE RISERS MONITORING TECHNIQUE BASED ON VIBRATION MEASUREMENTS / MONITORAMENTO DE RISERS FLEXÍVEIS ATRAVÉS DE TÉCNICA BASEADA EM VIBRAÇÕES
The main failure in flexible risers is the disruption of the wires from the tensile armor layer. Experience has shown that this class of damage occurs primarily near to the top riser connector. The breaking of the wires occurs gradually and may be caused by different processes as corrosion by inflow of fluid in the annular space, excessive wear associated wi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/04/2012
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7. Crescimento e propriedades vibracionais de cristais a base de Ãxidos / Growth and Vibrational Properties of Oxide Crystals
In this work we used different experimental techniques to study four different series of inorganic oxide crystals, namely: (i) congruent lithium isotope niobate (C7LN), (ii) rare-earth doped mixed vanadates ((Nd,Yb):YxGd1-x(VO4)); (iii) alkali metal doped and pure calcium barium niobates (CaxBa1-xNb2O6); and (iv) potassium tantalite niobate (KTa1-xNbxO3). Be
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/03/2012
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8. PROPRIEDADES FÍSICAS DE UMA TOPOSSEQUÊNCIA ARGISSOLO-GLEISSOLO / PHYSICAL PROPERTIES OF A TOPOSEQUENCE GLEY-PODZOLIC
Os solos da Depressão Central Gaúcha são constituidos porareia, silte e argila. A região tem cotas entre 40 à 100 m, nas mais baixas (várzea) predominam os Gleissolos e nas coxilhas predominam os Argissolos. O objetivo deste trabalho foi avaliar o comportamento compressivo (capacidade de suporte e susceptibilidade a compactação) do solo, e a influên
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/03/2011
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9. Estudo do potencial anticÃncer de novos derivados acridÃnicos sintÃticos em modelos experimentais in vitro. / Study of the potential of new anticancer synthetic acridine derivatives in experimental models in vitro.
Acridines are planar aromatic polycyclic molecules that have the ability to progress in nuclear DNA. Many of its representatives have antibacterial, antiparasitic and antitumor. This study evaluated the cytotoxic potential of 22 new acridine compounds in strains of human tumor cells. Among these, four compounds [5-(acridin-9-yl-methilene)-3-(4-methyl-benzyl)
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/01/2010
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10. Aplicação da estratigrafia de sequências para caracterização em multiescala de reservatórios no Grupo Guatá (Eopermiano da Bacia do Paraná) na Região São Gabriel-RS, Brasil
Detailed stratigraphic analysis of the Early Permian Rio Bonito and Palermo Formations of the intracratonic Paraná Basin in the region of São Gabriel County has been used for a study on reservoir characterization of paralic sandstones. Two main depositional systems were recognized, a fluvial-dominated delta system at the base and a wavedominated barrier is
Publicado em: 2010
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11. Significado tectônico dos depósitos de leques aluviais da Formação Santa Bárbara (Eo-Paleozóico) na região de Caçapava do Sul (RS, Brasil)
The alluvial fan deposits of Early Paleozoic Santa Bárbara Formation, located in Sul-rio-grandense Shield area of southernmost Brazil, have been analyzed here in terms of facies associations and tectonic significance. The investigated unit comprises conglomerates, sandstones, and siltstones, deposited probably under continental semi-arid climate conditions,
Publicado em: 2010
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12. Caracterização dos solos na área do assentamento "Banco da Terra" (Fazenda Akolá), Londrina (PR)
This work had the purpose to contribute on improving database of physical site to enable useble inferences on soils manegements of Banco da Terra settlement (Fazenda Akolá), Londrina, Paraná State, were 42 families live and work. It was chosen soil sequencies with stage length for about 650 m and 10% of medium slope. Firstly, it were obtained four soil
Publicado em: 2010