Measurement Techniques
Mostrando 13-24 de 547 artigos, teses e dissertações.
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13. CHLOROPHYLL FLUORESCENCE OF BASIL PLANTS CULTIVATED IN A HYDROPONIC SYSTEM USING TREATED DOMESTIC WASTEWATER
ABSTRACT Different techniques have been used to evaluate the energetic characteristics and damage to the photosynthetic apparatus of plants exposed to different stresses, including the measurement of chlorophyll fluorescence. The objective of this study is to evaluate the photosynthetic response by assessing the fluorescence parameters of chlorophyll a in ba
Eng. Agríc.. Publicado em: 19/06/2019
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14. Valores anômalos e dados faltantes em estudos clínicos e experimentais
Resumo Durante a análise dos dados de uma pesquisa científica, é habitual deparar-se com valores anômalos ou dados faltantes. Valores anômalos podem ser resultado de erros de registro, de digitação, de aferição instrumental, ou configurarem verdadeiros outliers. Nesta revisão, são discutidos conceitos, exemplos e formas de identificar e de lidar c
J. vasc. bras.. Publicado em: 30/05/2019
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15. Accuracy of single-breath counting test to determine slow vital capacity in hospitalized patients
RESUMO Objetivo: identificar a acurácia do teste de contagem em uma única respiração para determinar a capacidade vital lenta em pacientes hospitalizados e avaliar sua repetibilidade entre o mesmo examinador. Métodos: estudo de diagnóstico em que a escolha das técnicas foi aleatoriamente atribuída. A área sob a curva (característica de operação
Rev. CEFAC. Publicado em: 29/04/2019
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16. Vegetable moisturizing raw material from “Caatinga” Brazilian biome: safety and efficacy evaluations of O/W cosmetic emulsions containing Kalanchoe brasiliensis extract
The purpose of this study was to evaluate the safety of Kalanchoe brasiliensis extract, followed by the development of an oil in water emulsion containing the K. brasiliensis leaves extract and evaluating its clinical moisturizing efficacy. The formulations containing sodium acrylates/ Beheneth-25 methacrylate Crosspolymer (and) hydrogenated polydecene (and)
Braz. J. Pharm. Sci.. Publicado em: 08/04/2019
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17. Continuous Scanning Technique with Barkhausen Magnetic Noise for Carbon Steel Sheets
This work studies the application of a Non-Destructive Inspection Technique (NDIT), based on the Magnetic Barkhausen Noise (MBN), for the detection of non-homogeneous regions in carbon steel plates. It presents the advances in the development of a variant of a new non-destructive magnetic test technique, called Continuous Scanning Magnetic Barkhausen Noise (
Mat. Res.. Publicado em: 10/01/2019
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18. Digital Approach for Measuring Tree Diameters in the Amazon Forest
ABSTRACT Buttresses and other natural structures modify the shape of stems in Amazonia and change the diameter at breast height (DBH) measured at 1.3 m at ground level. The lack of adequate measurement techniques affects negatively forest dynamics analyses and biomass estimating. The study evaluated an indirect method of measuring diameters in trees with DB
Floresta Ambient.. Publicado em: 07/01/2019
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19. RESEARCH METHODOLOGY FOR NOVELTY TECHNOLOGY
Abstract This paper contributes to the existing literature by reviewing the research methodology and the literature review with the focus on potential applications for the novelty technology of the single platform E-payment. These included, but were not restricted to the subjects, population, sample size requirement, data collection method and measurement of
JISTEM J.Inf.Syst. Technol. Manag.. Publicado em: 13/12/2018
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20. Modeling of stem form and volume through machine learning
Abstract Taper functions and volume equations are essential for estimation of the individual volume, which have consolidated theory. On the other hand, mathematical innovation is dynamic, and may improve the forestry modeling. The objective was analyzing the accuracy of machine learning (ML) techniques in relation to a volumetric model and a taper function f
An. Acad. Bras. Ciênc.. Publicado em: 18/10/2018
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21. Color assessment by different techniques of gilthead seabream (Sparus aurata) during cold storage
Abstract Overall objective of the study was assessment for freshness parameters of gilthead seabream (Sparus aurata). The freshness was determined by two conventional method (i.e. Minolta color measurement method) was compared with a novel machine vision technology (i.e image color analysis method). The quality characteristics related to the freshness of th
Food Sci. Technol. Publicado em: 21/09/2018
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22. Metodología ad hoc para la observación de superficies de desgaste y fractura
ABSTRACT In the present work, a methodology of microscopic analysis and measurement of wear surfaces is presented, based on images made using digital processing techniques such as stitching and stac-king. The images are obtained from an ad-hoc and low-cost microscopic observation system, consisting of sample positioning and focus-elevation modules with micro
Matéria (Rio J.). Publicado em: 19/07/2018
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23. Métodos temporales para determinar deformaciones límite en chapas metálicas
ABSTRACT The forming limit diagram (FLD) –broadly used to characterize sheet-metal formability– is made by means of strain measurement over the surface of stretched samples and the subsequent determination of limit-strain values associated with the onset of necking. Currently, researchers can make strain measurements with digital image-correlation analys
Matéria (Rio J.). Publicado em: 19/07/2018
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24. 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