Characterization
Mostrando 1-12 de 28801 artigos, teses e dissertações.
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1. Characterization and variability of strains of Xanthomonas axonopodis pv. passiflorae from the state of Pará, Brazil
ABSTRACT Bacterial spot, caused by Xanthomonas axonopodis pv. passiflorae, is a disease that has limited the cultivation of passionfruit in various orchards in Brazil. The objective of this work is to characterize and evaluate the variability of 29 strains of X. axonopodis pv. passiflorae from different municipalities producing yellow passionfruit in the sta
Revista Ceres. Publicado em: 2023
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2. Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications
Abstract For oxide semiconductors for application in dye-sensitized solar cells (DSSCs), titanium dioxide conjugated with zinc oxide thin films was synthesized and characterized. The UV (ultraviolet) spectrum characterization showed a peak of absorbance at around 355 nm, with a band gap of 3.25 eV and reflectance around 85%. Such characteristics allowed the
Cerâmica. Publicado em: 2023
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3. Technological properties of a self-bloating clay and expanded-clay aggregate for the production of lightweight concrete
Abstract The global interest in an increasingly sustainable economy, with a reduction in the consumption of raw materials and energy, can be supported by the growth in the use of lightweight concrete (LC) produced with expanded-clay aggregates (EA). The main qualities of natural self-bloating clay for the production of EA were studied, analyzing the paramete
Cerâmica. Publicado em: 2023
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4. CLINICAL AND PATHOLOGICAL CHARACTERIZATION OF HEPATIC LYMPHOMAS: A RETROSPECTIVE SINGLE-CENTER STUDY
RESUMO Contexto A incidência de linfoma hepático tem aumentando recentemente e o diagnóstico pode ser desafiante, na medida em que a apresentação clínica e os achados imagiológicos são geralmente variáveis e inespecíficos. Objetivo: Os objetivos deste estudo foram descrever suas principais características clínicas, patológicas e de imagem e i
Arquivos de Gastroenterologia. Publicado em: 2023
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5. ERRATUM: Characterization of biopsychosocial factors of patients with chronic nonspecific low back pain
BrJP. Publicado em: 2022
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6. Characterization of micaceous minerals occurring in phosphate ores in Brazil: emphasis on the interstratified phyllosilicates
Abstract Micaceous minerals were characterized in three phosphatic ores from mines in Western Minas Gerais State, Brazil, all having complex chemical and mineralogical compositions, with emphasis on interstratified phyllosilicates. Knowledge of the relationship between the physical and chemical characteristics of the phyllosilicates contributed to a better u
REM - International Engineering Journal. Publicado em: 2022
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7. Influence of the addition of niobium oxide on the properties of fused aluminum oxide used in abrasive tools
Abstract Fused alumina is a material used in the manufacturing of abrasive tools, due to its high fusion point, great hardness, and mechanical toughness. In this context, this study addressed the influence of niobium addition on the properties of fused alumina for abrasive applications. A comparison was also made between this oxide and the brown fused alumin
Cerâmica. Publicado em: 2022
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8. Ultrafine quartz flocculation: Part I. System characterization and variables selection
Abstract A characterization study was performed to verify the more relevant physicochemical properties for quartz flocculation with polyacrylamide, as well as to define which variables should be further investigated regarding this flocculation system. Polyacrylamide was evaluated through molecular weight, radius of gyration, and infrared spectrometry. A natu
REM - International Engineering Journal. Publicado em: 2022
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9. Characterization and potential applications of new boron-phosphate glass in the CaO-P2O5-K2O-B2O3 system
Abstract Boron phosphate glasses are known for their unique properties and have been investigated as biodegradable materials for biomedical applications. In this context, the present research studied the characterization of physical, mechanical, and bioactive properties of new boron-phosphate glass in the CaO-P2O5-K2O-B2O3 system produced by the melt-quenchi
Cerâmica. Publicado em: 2022
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10. Pressed roofing tile based on cementitious material and basalt powder: Technological and toxicological characterization
Abstract This study aims to develop a pressed concrete roofing tile from powder technology containing basalt powder in substitution of fine sand (aggregate) for application in building covers. Specimens were submitted to technological and toxicological characterization. Hence, pressed specimens based on cement and basalt powder were analyzed. In the bending
REM - International Engineering Journal. Publicado em: 2022
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11. Characterization of Fusarium spp. causal agent of wilt in pecan
ABSTRACT One of the limiting factors for pecan production is the incidence of disease caused by Fusarium spp. which are a threat to orchards in the south of the country. Therefore, the study aimed to confirm the pathogenicity and evaluate the morphophysiological and molecular characteristics of Fusarium spp. associated with pecan in Rio Grande do Sul and Par
Revista Ceres. Publicado em: 2022
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12. Morpho-agronomic characterization and genetic divergence among pepper accessions
ABSTRACT The germplasm characterization and the analysis of genetic divergence are fundamental requirements to determine the genetic diversity available and peppers have considerable variability not most explored and quantified. Thus, the aim of this study was to characterize morphological and agronomically pepper accessions and their genetic divergence. The
Revista Ceres. Publicado em: 2022