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Sparse arrays and image compounding techniques for non-destructive testing using guided acoustic waves
(2013-06-01)
Piezoelectric array transducers applications are becoming usual in the ultrasonic non-destructive testing area. However, the number of elements can increase the system complexity, due to the necessity of multichannel ...
Internal inspection of semi-transparent objects by digital holographic micro-tomography
(Elsevier Gmbh, 2013-09)
The combined use of digital holographic microscopy and computer tomography, here named digital holographic micro-tomography, is used to examine the interior of transparent channels. The proposed method is used to identify ...
Identification of steel bars immersed in reinforced concrete based on experimental results of eddy current testing and artificial neural network analysis
(2013-03-01)
This paper presents an experimental research on the use of eddy current testing (ECT) and artificial neural networks (ANNs) in order to identify the gauge and position of steel bars immersed in concrete structures. The ...
Hybridization effect on the mechanical properties of curaua/glass fiber composites
(2013-08-20)
The aim of this paper was to evaluate the effect of hybridizing glass and curaua fibers on the mechanical properties of their composites. These composites were produced by hot compression molding, with distinct overall ...
Bending stiffness evaluation of Teca and Guajara lumber through tests of transverse and longitudinal vibration
(UNIV ESTADUAL MARINGA, PRO-REITORIA PESQUISA POS-GRADUACAOMARINGA, 2012)
The grading of structural lumber besides contributing for increasing the structure's safety, due to the reduction of the material variability, also allows its rational use. Due to the good correlation between strength and ...
Non-destructive model to estimate the leaf area of multiple Vochysiaceae species
(2015-12-01)
Leaf area (LA) is commonly used to evaluate plant traits such as leaf development and plant growth, which depend on sunlight interception. However, methods for obtaining LA are destructive and require many leaf samples ...
Evaluation of the density distribution in MDF's using ultrasonic wave technique
(Ipef-inst Pesquisas Estudos FlorestaisPiracicabaBrasil, 2007)
Expression profile of components of the beta-catenin destruction complex in oral dysplasia and oral cancer
(Medicina Oral, 2021)
Background: Oral cancer represents the sixth most common cancer in the world and is associated with 40-50%
survival at 5 years. Within oral malignancies, oral squamous cell carcinoma (OSCC) is commonly preceded by
potentially ...
DETERMINATION OF THE E/G RATIO OF WOOD LOGS USING TRANSVERSE VIBRATION
(SLOVAK FOREST PRODUCTS RESEARCH INSTBRATISLAVA, 2012)
The Bernoulli's model for vibration of beams is often used to make predictions of bending modulus of elasticity when using dynamic tests. However this model ignores the rotary inertia and shear. Such effects can be added ...