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Mostrando 1-12 de 3592 artigos, teses e dissertações.
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1. Sensitivity analysis of the AquaCrop model for wheat crop in Campos Gerais region, Paraná
ABSTRACT The use of crop modeling can be useful to understand the interactions between the soil-plant-atmosphere system. The objective of this study was to evaluate sensitivity analysis of the AquaCrop model parameters for wheat crop in the Campos Gerais Region. The varietie tested was TBIO Sinuelo in Castro, Ponta Grossa and Itaberá cities. The analyzed pa
Revista Ceres. Publicado em: 2023
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2. Distortion Product Otoacoustic Emissions (DPOAEs) In Tinnitus Patients
Abstract Introduction Tinnitus is the perception of sound in the absence of external sound stimulation. There is a general agreement that it is a direct consequence of irreversible and permanent cochlear damage. Objectives The present work is designed to study the distortion product otoacoustic emissions (DPOAEs) in tinnitus patients with normal hearing in
International Archives of Otorhinolaryngology. Publicado em: 2022
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3. MIMO-PLC Communications in an Experimental Medium Voltage Network: Measurement and Analysis
Abstract This paper presents measurements at a mock-up medium voltage network to verify the feasibility of Broadband Power Line Communication (BPLC). We use the data extracted within the frequency range 2 − 30 MHz to characterize a MIMO PLC network using different phase combinations, defining the best and worst use case scenarios. The empirical data shows
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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4. ADDITION OF NATURAL EXTRACTS WITH ANTIOXIDANT PROPERTIES IN BIODIESEL: ANALYSIS BY NEURAL NETWORKS OF THE MULTILAYER PERCEPTRON TYPE
Biodiesel is capable of replacing diesel because it has similar physicochemical properties, but this biofuel is susceptible to oxidation, which makes the application of antioxidant substances necessary. For this study, alcoholic extracts of senna leaves, hibiscus flowers, and blackberry were used. Biodiesel samples were submitted to physicochemical analysis
Química Nova. Publicado em: 2022
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5. Analysis of Al2O3-ZrO2 ceramic insert in turning process of Ti-6Al-4V alloy using grey Taguchi-based response surface methodology (GT-RSM)
Abstract The present investigation aimed at a sustainable green turning operation of Ti-6Al-4V alloy using multi-objective optimization of surface roughness, tool flank wear, material removal rate, and tool wear loss with cutting speed, feed rate, and depth of cut as input parameters. The experiments were performed on a CNC lathe machine using an alumina-zir
Cerâmica. Publicado em: 2022
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6. A China e a desindustrialização brasileira: um olhar para além da especialização regressiva
Resumo Este artigo analisa como o estreitamento das relações comerciais entre Brasil e China, a partir dos anos 2000, tem causado o aprofundamento de dois fenômenos característicos da economia brasileira desde os anos de 1980: a especialização regressiva e a desindustrialização. Em especial, para além dos impactos a respeito do papel chinês na espe
Nova Economia. Publicado em: 2022
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7. FUZZY MODELING OF THE EFFECT OF IRRIGATION DEPTHS ON BEET CULTIVARS
ABSTRACT The objective of this study was to develop a Fuzzy Rule-Based System (FRBS) for the mathematically modeling of the irrigation level effect on beet cultivars ( Beta vulgaris L.). From an agronomic experiment carried out in a protected environment (greenhouse), it was defined as input variables, for each cultivar, the irrigation levels (depths of 25,
Engenharia Agrícola. Publicado em: 2022
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8. Ecology of knowledges and languages in Latin American academic production
Resumo A produção acadêmica latino-americana é analisada em relação à sua visibilidade, internacionalização e ecologia de saberes e de línguas nesse processo. Ferramentas bibliométricas foram utilizadas para formar um corpus de 2.939 estudos da base de dados Scopus entre 2010-2019, analisados em duas dimensões: a dimensão input/editorial, e a di
Ensaio: Avaliação e Políticas Públicas em Educação. Publicado em: 2022
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9. Viability of Italian ryegrass (Lolium multiflorum) seeds under application of synthetic auxin herbicides
ABSTRACT Italian ryegrass (Lolium multiflorum) is one of the main weeds in the wheat crop, and the application of synthetic auxin herbicides has the potential to reduce seed viability, therefore, restricting the input into the seed bank. The objective was to evaluate the effects of synthetic auxin herbicides applied at different growth stages on germination,
Revista Ceres. Publicado em: 2022
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10. FUZZY MODELING OF SALINITY EFFECTS ON PUMPKIN (Cucurbita pepo) DEVELOPMENT
ABSTRACT The low quality of the water currently used for irrigation purposes harms the quality of the products and can lead to a reduction in production. Thus, the objective of this work was to verify the effect of saline water in irrigation water, on biometric variables of pumpkin crop using a system based on fuzzy rules. The agronomic experimental part of
Engenharia Agrícola. Publicado em: 2022
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11. A construção de corpus de larga escala da fala bilíngue de crianças e da fala bilíngue dirigida à criança, anotado e alinhado aos arquivos de áudio: desafios, soluções e implicações para a pesquisa
RESUMO O projeto BiRCh (The Corpus of Bilingual Russian Child Speech, Corpus de fala de crianças bilíngues em russo) envolve a construção de um corpus longitudinal composto de gravações de fala em russo produzida por crianças e suas famílias na Rússia, Ucrânia, Alemanha, EUA e Canadá. Estamos construindo um corpus de larga escala com base no conju
Bakhtiniana: Revista de Estudos do Discurso. Publicado em: 2022
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12. Source-sink relationship of soybean accessed by increasing in solar radiation through the plant canopy
ABSTRACT The photosynthetic metabolism is a key point to improve soybean yield. In this work, we demonstrated that radiation use by soybean plants can be improved, aiming to improve the grain yield in the lower canopy. The objective of this study was to observe whether the increase in solar radiation input in the canopy of soybean plants improves their yield
Revista Ceres. Publicado em: 2022