191 research outputs found

    Methodology evaluation of pin microrelief meter

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    The effects of natural weathering and different managements performed in agriculture may best be understood by studying the soil roughness. The aim of this study was to evaluate the optimization of the use of pin microrelief meter, an instrument used to determine the soil surface roughness, as the number of readings collected over traditional methodology proposed in the bibliography. The study was conducted in Rio Paranaiba (MG), in a Haplustox soil. The experimental design was completely randomized in a 2×3 factorial design with four replications. There were combined two types of primary tillage: conventional tillage with disc plow (PCAD) and harrow (PCGA), and three amounts of readings (100, 200, and 300 reading points) sampled in each experimental unit. Independently of the soil tillage, disc plow and harrow, the collection of 100 readings using a pin microrelief meter of a square meter, was sufficient to determine the surface roughness before and after soil preparation, without accuracy loss compared with the traditional method

    Analysis of different illumination systems for poultry houses of producing fertile eggs

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    Besides the ration, the most consumed input in the productive chain of the poultry industry is the electrical energy, mainly in the production of one day chicks, consuming energy in all the periods, from the egg production to incubation. For the egg production, huge amount of energy is used, in illumination systems of poultry houses in the wave length of the yellow color. The reduction of the energy expenses is tied up to the improvement of the illumination systems, since lamps of higher power, low efficiency and less durable, form the usual system. So, this work, developed in Southwest Parana, has aimed to develop an illumination system which uses a lesser amount of lamps, demanding less energy and long lasting. The illumination systems with sodium vapor 70 W, mixed vapor 250 W and fluorescent HO 110 W lamps were mounted, observing the minimum illuminance of 40 lux. A technical and economical analysis of the data proved that the sodium vapor system is the most economical and durable.Excluindo-se a ração, o insumo mais utilizado na cadeia produtiva da avicultura é a energia elétrica, principalmente na produção de pintinhos de um dia, ocorrendo consumo em todas as fases, desde a obtenção do ovo até a incubação. Para a produção do ovo consome-se grande quantidade de energia elétrica nos sistemas de iluminação dos aviários, devido à necessidade de exposição da poedeira à luz no comprimento de cor amarela. A redução dos gastos com energia elétrica está ligada à melhoria dos sistemas de iluminação, já que o sistema usual é formado por lâmpadas incandescentes de grande potência, baixa eficiência e vida útil curta. Assim, através deste trabalho, desenvolvido em uma granja do Sudoeste do Paraná, objetivou-se desenvolver um sistema de iluminação em que se utilizasse menor quantidade de lâmpadas, demandasse menor carga de energia elétrica e apresentasse maior durabilidade. Foram montados, então, os sistemas de iluminação a vapor de sódio 70 W, vapor mista 250 W e fluorescente HO 110 W, obedecendo-se ao índice mínimo de iluminância de 40 lux. Análise técnico-econômica dos dados levantados durante o período de duração do lote demonstrou que o sistema a vapor de sódio é o mais econômico e durável.42042

    The RBP's mission in the continuing medical education

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    Universidade de São Paulo Departamento de PsiquiatriaDuke University Departamento de Psicologia e NeurociênciaUniversidade Federal doRio de Janeiro Instituto dePsiquiatria Departamento de Psiquiatria e Medicina LegalUniversidade de São Paulo Faculdade de Medicina Instituto de PsiquiatriaUniversidade Federal do Rio Grande do Sul Departamento de PsiquiatriaUniversidade Federal de São Paulo (UNIFESP) Departamento de PsiquiatriaUNIFESP, Depto. de PsiquiatriaSciEL

    Caracterização de lesões de pele em imagens digitais a partir da máquina de vetor de suporte

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    Este trabalho apresenta um método para a caracterização das lesões de pele, a partir das características da regra ABCD (assimetria, borda, cor e diâmetro) e análise de textura. As características ABCD são obtidas de acordo com o dermatologista e a textura das imagens é definida pela sua dimensão fractal, por meio do método box-counting. As características de assimetria e textura extraídas das imagens são utilizadas como entradas para o classificador SVM (Máquina de Vetor de Suporte), que é uma técnica baseada em aprendizado estatístico, utilizada para o reconhecimento de padrões em imagens. O SVM classifica a assimetria das lesões em simétrica ou assimétrica e a textura das lesões em lisa ou rugosa. Todas as informações referentes as características extraídas da lesão são passadas ao dermatologista com o intuito de auxiliá-lo no diagnóstico

    Synthesis, Characterization and use of Nb2 O5 based Catalysts in Producing Biofuels by Transesterification, Esterification and Pyrolysis

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    Nb2O5/HX (X = HSO4-, H2PO4-, NO3-) compounds were obtained from the treatment of niobium acid (Nb2O5·xH2O) with sulfuric, phosphoric, and nitric acids as well as Nb2O5 and Nb2O5·xH2O have been investigated as catalysts for the transesterification, esterification and pyrolysis of vegetable oils. The compounds were characterized by thermal analysis (DTA-TGA), spectroscopy (DRX, FT-IR and FT-Raman), surface area (BET) and the acidity (Ho) determined by n-butylamine titration using the Hammet´s indicator method. It was observed that after the acid treatment both the surface area and the acidity decreased as compared to the starting Nb2O5·xH2O. The only exception was a higher acidity verified when nitric acid was used. Among the catalyst investigated, the Nb2O5/H3PO4 presented the highest activity in the alcoholysis of soybean oil with different mono-alcohols (methanol, ethanol, 2-propanol, n-butanol). All tested solids seemed to stabilize the carboxylic acids formed during the pyrolysis, yielding higher acid numbers for the obtained products. Finally, the use of Nb2O5/H3PO4 and Nb2O5/H2SO4 as catalysts for the esterification showed better activity than Nb2O5·xH2O and Nb2O5

    Classificação de assimetria em lesões de pele por meio de imagens usando máquina de vetor de suporte

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    The increased occurrence of cancer cases over the years and the importance of prevention work motivated the development of this work. It aim is help the dermatologist in the diagnosis of skin lesions, providing information about the characteristics of asymmetry of ABCD rule (Asymmetry, Edge, Color and Diameter), widely used in the initial examination to determine if a lesion is malignant or no. To do so, are extracted from scanned images of the asymmetric features of the lesion, and classified as symmetrical or asymmetrical, through a Support Vector Machine (SVM). This process is used an anisotropic diffusion filter to soften the image and the model of active contour without edge (Chan-vese) to segment them. Thus, allows to define the contour of the lesion so that can be extracted their characteristics of asymmetry, used as input in the smart classifier

    The BLue Amazon Brain (BLAB): A Modular Architecture of Services about the Brazilian Maritime Territory

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    We describe the first steps in the development of an artificial agent focused on the Brazilian maritime territory, a large region within the South Atlantic also known as the Blue Amazon. The "BLue Amazon Brain" (BLAB) integrates a number of services aimed at disseminating information about this region and its importance, functioning as a tool for environmental awareness. The main service provided by BLAB is a conversational facility that deals with complex questions about the Blue Amazon, called BLAB-Chat; its central component is a controller that manages several task-oriented natural language processing modules (e.g., question answering and summarizer systems). These modules have access to an internal data lake as well as to third-party databases. A news reporter (BLAB-Reporter) and a purposely-developed wiki (BLAB-Wiki) are also part of the BLAB service architecture. In this paper, we describe our current version of BLAB's architecture (interface, backend, web services, NLP modules, and resources) and comment on the challenges we have faced so far, such as the lack of training data and the scattered state of domain information. Solving these issues presents a considerable challenge in the development of artificial intelligence for technical domains

    Lista de gêneros de Hymenoptera (Insecta) do Espírito Santo, Brasil

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    The first checklist of genera of Hymenoptera from Espírito Santo state, Brazil is presented. A total of 973 genera of Hymenoptera is listed, of which 555 (57%) are recorded for the first time from this state. Ichneumonoidea and Chalcidoidea are the two superfamilies with the most genera, 241 and 203 respectively. Braconidae, with 141 genera, are the richest family.The first checklist of genera of Hymenoptera from Espírito Santo state, Brazil is presented. A total of 973 genera of Hymenoptera is listed, of which 555 (57%) are recorded for the first time from this state. Ichneumonoidea and Chalcidoidea are the two superfamilies with the most genera, 241 and 203 respectively. Braconidae, with 141 genera, are the richest family.Fil: Azevedo, Celso O.. Universidade Federal do Espírito Santo; BrasilFil: Molin, Ana Dal. Texas A&M University; Estados UnidosFil: Penteado-Dias, Angelica. Universidade Federal do São Carlos; BrasilFil: Macedo, Antonio C. C.. Secretaria do Meio Ambiente do Estado de São Paulo; BrasilFil: Rodriguez-V, Beatriz. Universidad Nacional Autónoma de México; MéxicoFil: Dias, Bianca Z. K.. Universidade Federal do Espírito Santo; BrasilFil: Waichert, Cecilia. State University of Utah; Estados UnidosFil: Aquino, Daniel Alejandro. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Entomología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Smith, David. Smithsonian Institution; Estados UnidosFil: Shimbori, Eduardo M.. Universidade Federal do São Carlos; BrasilFil: Noll, Fernando B.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Gibson, Gary. Agriculture and Agri-Food Canada; CanadáFil: Onody, Helena. Universidade Federal do São Carlos; BrasilFil: Carpenter, James M.. American Museum of Natural History; Estados UnidosFil: Lattke, John. Universidad Nacional de Loja; EcuadorFil: Ramos, Kelli dos S.. Universidade de Sao Paulo; BrasilFil: Williams, Kevin. Florida State Collection of Arthropods; Estados UnidosFil: Masner, Lubomir. Agriculture and Agri-Food Canada; CanadáFil: Kimsey, Lynn. University of California; Estados UnidosFil: Tavares, Marcelo T.. Universidade Federal do Espírito Santo; BrasilFil: Olmi, Massimo. Università degli Studi della Tuscia; ItaliaFil: Buffington, Matthew L.. United States Department of Agriculture; Estados UnidosFil: Ohl, Michael. Staatliches Museum fur Naturkunde Stuttgart; AlemaniaFil: Sharkey, Michael. University of Kentucky; Estados UnidosFil: Johnson, Norman F.. Ohio State University; Estados UnidosFil: Kawada, Ricardo. Universidade Federal do Espírito Santo; BrasilFil: Gonçalves, Rodrigo B.. Universidade Federal do Paraná; BrasilFil: Feitosa, Rodrigo. Universidade Federal do Paraná; BrasilFil: Heydon, Steven. University of California; Estados UnidosFil: Guerra, Tânia M.. Universidade Federal do Espírito Santo; BrasilFil: da Silva, Thiago S. R.. Universidade Federal do Espírito Santo; BrasilFil: Costa, Valmir. Instituto Biológico; Brasi
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