Oven Test
Mostrando 1-12 de 68 artigos, teses e dissertações.
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1. PREPARATION OF HYBRID POLYMERS AND USE AS CONTROLLED RELEASE DELIVERY VEHICLE FOR VOLATILE REPELLENT TO CONTROL Aedes aegypti
The Zika virus is a flavivirus spread by the Aedes aegypti mosquito, which also transmits dengue and chikungunya. Current forms of control include elimination of mosquito breeding sites, use of insecticides, repellents and other means. The present study developed new adsorbent materials based on silica and biomaterials capable of releasing an Aedes aegypti m
Quím. Nova. Publicado em: 2021-04
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2. Quantification of Arsenic, Cadmium, Mercury and Lead in Pineapple: Method Development, Validation and Evaluation of In-House Reference Materials
A method for quantification of arsenic, cadmium, mercury, and lead in pineapple using inductively coupled plasma-mass spectrometry (ICP-MS) was developed, validated, and used to test the homogeneity and stability of in-house reference materials. The method was tested at the regulation levels given by the Food and Agriculture Organization of the United Nation
J. Braz. Chem. Soc.. Publicado em: 2020-06
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3. Analysis of radiographic images and germination of Campomanesia pubescens (Mart. ex DC.) O.Berg (Myrtaceae Juss.) seeds under drying
Resumo O objetivo deste trabalho foi avaliar a morfologia interna de sementes de Campomanesia pubescens (Mart. ex DC.) O.Berg com diferentes teores de água por meio de análise de imagens de raios-X, e correlacionar as imagens com a germinação dessas sementes. Os frutos foram coletados no município de Jataí, Goiás, Brasil, e levados ao Laboratório de
Braz. J. Biol.. Publicado em: 25/11/2019
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4. Um método de ensaio para determinação da concentração de óleo em amostras de águas contaminadas com óleos e graxas
RESUMO A concentração de óleos e graxas em amostras de águas contaminadas com resíduos oleosos pode ser determinada pelos procedimentos estabelecidos no Standard Methods for the Examination of Water and Wastewater. No entanto, sua aplicação nem sempre resulta em valores adequados ou níveis de precisão satisfatórios para atendimento de padrões norm
Eng. Sanit. Ambient.. Publicado em: 05/08/2019
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5. Standardization of A Sample-Processing Methodology for Stable Isotope Studies in Poultry
ABSTRACT The objective of this study was to determine if lipid extraction processes alter the isotopic value of δ13C and δ15N of tissues (pectoral muscle, thigh and liver) and eggs and if the use of anticoagulants interferes with blood and plasma δ13C and δ15N isotopic values. Samples were acquired from the same flock of birds. The 32 egg samples were ra
Braz. J. Poult. Sci.. Publicado em: 18/04/2019
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6. Nutritional quality of the epicarp and mesocarp flours of baru fruits submitted to drying
RESUMO O baru (Dipteryx alata Vogel) é uma arbórea nativa do cerrado. O processo secagem e moagem pode ser uma alternativa para o aproveitamento e conservação dos frutos de baru. O objetivo deste estudo foi avaliar o efeito da secagem dos frutos sobre as características nutricionais das farinhas do epicarpo + mesocarpo de baru. Os frutos foram coletados
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-01
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7. Optimal hydrated lime concentration in asphalt binder to improve photo degradation resistance
Abstract The effect of short-term oxidation, evaluated by using a Rolling Thin Film Oven Test, and the effect of weathering aging on the oxidation process of hydrated lime modified asphalts were studied. Hydrated lime (HL) has been known as an additive for asphalt mixtures and is now considered as a binder additive that increases asphalt mixture durability.
REM, Int. Eng. J.. Publicado em: 2018-04
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8. Chemical compositions and antioxidant activity of Heracleum persicum essential oil
ABSTRACT In this study essential oil of the aerial parts of Heracleum persicum a spice widely used in Iran was isolated by conventional hydrodistillation (HD) and microwave-assisted hydrodistillation (MAHD) techniques. The extraction yield was determined and the chemical compositions of essential oils were identified by the application of gas chromatography/
Braz. J. Pharm. Sci.. Publicado em: 01/02/2018
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9. Stability of bioactive compounds in minimally processed beet according to the cooking methods
Abstract The current study aimed to determine the functional propriety of fresh beets under different cooking methods through the quantification of bioactives compounds. Beets were chosen for uniformity of size, color and absence of defects. They were thoroughly washed in running water to remove dirt, manually peeled with a knife, sliced through a stainless-
Food Sci. Technol. Publicado em: 26/10/2017
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10. Drying Contraction Assessment of Ceramic Products Produced by Extrusion or Pressing Formulated with Sheep Wool Waste
The main aim of this paper was to evaluate ceramic products containing a percentage of ash from sheep wool waste through drying linear shrinkage from a small brickyard in Bagé - RS. The ash percentages used in the formulation were 0, 5, 10, 20 and 30%. Raw materials were analyzed by Energy Dispersive X - ray Fluorescence (XRF/EDX). The methods used to shape
Mat. Res.. Publicado em: 18/05/2017
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11. Study of Aramid Fiber/Polychloroprene Recycling Process by Thermal Degradation
ABSTRACT Aramid fiber is an important polymer applied as reinforcement in high-performance composites, which, due its exceptional properties, becomes an excellent impact absorption material. It has been broadly utilized in aeronautic industry and ballistic protection. In aircrafts, it is mainly used in secondary structures, such as fairings, floor panels, an
J. Aerosp. Technol. Manag.. Publicado em: 2016-09
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12. Is there difference of Streptococcus mutans count and adherence on amalgam and resin occlusal restorations? A blind clinical study
AIM: To compare the number of colony forming units CFU and agar adherence of S. mutans on amalgam AM and resin composite RC occlusal restorations. Sixty-five healthy patients older than 18 years with high caries risk who had at least one occlusal AM and RC restorations n=130 were selected. METHODS: The restorations were evaluated according to the alpha Ryge
Braz. J. Oral Sci.. Publicado em: 2015-03