Non Destructive Methods
Mostrando 1-12 de 60 artigos, teses e dissertações.
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1. Identification of Synthetic Drugs on Seized Blotter Papers Using ATR-FTIR and PLS-DA: Routine Application in a Forensic Laboratory
Blotter papers seizures containing synthetic drugs have intensified over the last decades. These drugs were originally conceived as “legal” alternatives to traditional illicit drugs, designed to mimic their effects and circumvent control agencies. Reference methods for determining these substances on blotter papers are based on chromatographic techniques
J. Braz. Chem. Soc.. Publicado em: 2021-03
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2. Ensaio não destrutivo em revestimento cerâmico utilizando um protótipo para detecção de patologia
RESUMO No setor da construção civil há um crescente investimento na manutenção e reparo das construções, como por exemplo, as patologias encontradas nos pisos com revestimento cerâmico. Dentre as patologias mais comuns se pode destacar o assentamento inadequado das placas cerâmicas, que são caracterizadas pela perda de aderência de algumas placas
Matéria (Rio J.). Publicado em: 25/11/2019
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3. Estimação da profundidade de fissuras em concreto através da velocidade de ondas ultrassônicas
RESUMO As fissuras são as manifestações patológicas mais recorrentes no concreto, devido as diferentes formas de exposição que o material está sujeito. Neste cenário, é importante que as edificações passem por inspeções através de diferentes métodos, dentre os quais os ensaios não destrutivos (END) aparecem como ferramenta alternativa. Dentre
Matéria (Rio J.). Publicado em: 25/11/2019
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4. Estimating Above-Ground Biomass of Araucaria angustifolia (Bertol.) Kuntze Using LiDAR Data
ABSTRACT The objective of this study was to test the performance of canopy data obtained from Airborne Laser Scanner (ALS) in generating estimates of above-ground biomass (AGB) of Araucaria angustifolia (Bertol.) Kuntze individuals. A cloud of ALS points located in a fragment of native urban forest in Curitiba, Paraná was used. The procedures consisted of:
Floresta Ambient.. Publicado em: 23/09/2019
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5. NONDESTRUCTIVE ESTIMATION OF LEAF NUTRIENT CONCENTRATIONS IN EUCALYPTUS PLANTATIONS
ABSTRACT Determination of leaf nutrient concentrations is traditionally performed by carrying out destructive procedures, requiring laboratory chemical analysis, specialized equipment, and skilled labor. However, technological advances in recent years have now made it possible to analyze leaf nutrient concentrations using non-destructive methods such as leaf
CERNE. Publicado em: 09/09/2019
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6. CORRELATIONS AMONG VEGETATION INDICES AND PEANUT TRAITS DURING DIFFERENT CROP DEVELOPMENT STAGES
ABSTRACT Active optical sensors have been widely used for the spatial and temporal monitoring of peanut culture because they are accurate, non-destructive methods for rapidly obtaining data. The objective of this study was to determine the optimal stage of crop growth for collecting sensor readings based on correlations between quality indicators. In additio
Eng. Agríc.. Publicado em: 09/09/2019
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7. A new, harmless, high-throughput endosperm-based DNA extraction method for wheat
RESUMO: Neste estudo, foi desenvolvido um método de extração de DNA não destrutivo, de alto débito e endosperma. Para verificar a natureza não destrutiva deste método, um teste de germinação foi realizado em 288 sementes após a amostragem do endosperma, o que deu uma taxa de emergência de plântulas maior (97,6%) do que a do grupo controle (92%).
Cienc. Rural. Publicado em: 19/08/2019
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8. BIOMECHANICS OF BONE BLOCK GRAFT MODELS OF DIFFERENT GEOMETRY
RESUMO Objetivo: Avaliar o comportamento mecânico de enxertos ósseos em blocos com geometrias diferentes usando modelos de madeira. Métodos: Montagens com “enxertos” de perfil retangular (G1) e trapezoidal (G2), fixadas com placas de compressão dinâmica de 3,5 mm e oito orifícios, foram submetidas a ensaios não destrutivos de flexão, com a carg
Acta ortop. bras.. Publicado em: 30/05/2019
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9. Schizolobium Parahyba var. Amazonicum Glulam Classified by Non-destructive Tests
ABSTRACT The objectives of this study were to evaluate the relationship between the density and the EW (modulus of elasticity) values obtained by two non-destructive methods: the accuracy of an expeditious method using a graduated ruler; and the homogenization of elasticity between the methods for glulam elements. In the analysis, displacements were measure
Floresta Ambient.. Publicado em: 08/04/2019
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10. Analysis of biodeterioration wood estate: use different techniques to obtain images
ABSTRACT This study was based on the current status of locomotive turntable of Provincial Railway Station in La Plata. It was inaugurated in 1910 and it was declared as architectural heritage in 2006. The locomotive turntable is 200 meters from this station and it is a structure that consists in wooden slats of Schinopsis sp. into metal framework. Currently,
Matéria (Rio J.). Publicado em: 19/07/2018
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11. Characterization of reverse martensitic transformation in cold-rolled austenitic 316 stainless steel
ABSTRACT In this work the reversion of the strain-induced ?’-martensite to ?’-austenite was studied in a series of AISI 316 stainless steels (SS) specimens. The samples were submitted to 63% reduction in thickness by rolling at a temperature of -70ºC, to achieve high martensite content. The reversion of martensite to austenite was made by means of isoch
Matéria (Rio J.). Publicado em: 19/07/2018
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12. Non-resonant Permittivity Measurement Methods
Abstract The measurement of the dielectric properties of materials has been applied in non-destructive tests, humidity measurement, soil analysis and even cancer detection. The methods have been developed for over 70 years based on the interaction of the electromagnetic waves with the material under test. This work presents a general model of scattering para
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-03