Results 91 to 100 of about 1,953,363 (269)

Exploring Thermal and Mechanical Strains During Laying Down Process in Fused Filament Fabrication

Macromolecular Materials and Engineering, EarlyView.
This study analyzes strain evolution and thermal behavior during FFF of PLA using strain gauges and infrared imaging. Microstrain levels depend on printing conditions, with adhesion‐induced compression during cooling and peak strains in early layers. Microtomography shows minimal porosity, while thermal imaging reveals rapid heat penetration, strong ...
Boubakeur Mecheri, Jaianth Vijayakumar, Elodie Boller, Sofiane Guessasma   +3 more
wiley   +1 more source

The Determination Of Diffusive Tortuosity In Concrete Specimens Using X-Ray Microtomography

Archives of Metallurgy and Materials, 2015
The paper presents a method of pore connectivity analysis applied to specimens of cement based composites differing in water to cement ratio. The method employed X-ray microtomography (micro-CT).
Ranachowski Z., Jóźwiak-Niedźwiedzka D., Ranachowski P., Dąbrowski M., Kudela S., Dvorak T.   +5 more
doaj   +1 more source

Experimental study of the ageing of building stones exposed to sulfurous and nitric acid atmospheres [PDF]

, 2016
During the last few decades, due to remediation procedures, SO2 emissions in the atmosphere have decreased, unlike NOx. Air pollution has changed. Indeed, the aim of this research is to assess the effect of NOx and their interactions with SO2 on stones ...
Barbin, Vincent, Cnudde, Veerle, De Kock, Tim, Gibeaux, Soizic, Schneider, A, Thomachot-Schneider, Céline, Vazquez, Patricia   +6 more
core   +1 more source

Mechanical Performance Under Compressive Load of Carboxylated Nitrile Rubber and Kraft Lignin Composites

Polymer Composites, EarlyView.
Lignin dispersion in carboxylated nitrile rubber (XNBR) is enhanced at 7% carboxylic acid, significantly improving the composite's compressive mechanical performance for sealing applications. ABSTRACT Lignin is a promising biobased material that enhances the sustainability of rubber composites as a reinforcing filler.
Gustavo Ninho Campos, Elisson Brum Dutra da Rocha, Katrine Paiva, Marcos Vinicus Colaço, Cristina Russi Guimarães Furtado, Marco Antonio Gaya de Figueiredo, Ana Maria Furtado de Sousa   +6 more
wiley   +1 more source

Microplastic Detectability Investigation in Soils Using X‐Ray Microtomography

X-Ray Spectrometry, EarlyView.
ABSTRACT X‐ray microtomography (microCT) is a promising tool for investigating microplastic (MP) contamination in soils, offering non‐destructive 3D visualization and quantitative analysis of particles embedded in complex matrices. This study evaluated its applicability by mixing plastic fragments (PET, PEHD, PS, and PP) with humus‐rich and sandy soils
Átila P. Teles, Ana Paula F. de Almeida, Davi F. de Oliveira, Ricardo T. Lopes   +3 more
wiley   +1 more source

Synchrotron Radiation‐Based Tomography of an Entire Mouse Brain with Sub‐Micron Voxels: Augmenting Interactive Brain Atlases with Terabyte Data

Advanced Science
Synchrotron radiation‐based X‐ray microtomography is uniquely suited for post‐mortem 3D visualization of organs such as the mouse brain. Tomographic imaging of the entire mouse brain with isotropic cellular resolution requires an extended field‐of‐view ...
Mattia Humbel, Christine Tanner, Marta Girona Alarcón, Georg Schulz, Timm Weitkamp, Mario Scheel, Vartan Kurtcuoglu, Bert Müller, Griffin Rodgers   +8 more
doaj   +1 more source

THREE DIMENSIONAL CHARACTERIZATION OF SOIL MACROPOROSITY BY X-RAY MICROTOMOGRAPHY

Revista Brasileira de Ciência do Solo, 2015
Analysis of the soil pore system represents an important way of characterizing soil structure. Properties such as the shape and number of pores can be determined through soil pore evaluations. This study presents a three-dimensional (3D) characterization
Sabrina Passoni, Luiz Fernando Pires, Richard Heck, Jadir Aparecido Rosa   +3 more
doaj   +1 more source

Realistic CT image simulation tools for laboratory based X-ray CT at UGCT [PDF]

, 2013
In laboratory based X-ray Computed Tomography (CT), the grey values in the resulting CT image depend on several scanning conditions such as the emitted spectrum, the response characteristics of the detector and beam filtration.
Brabant, Loes, Dierick, Manuel, Pauwels, Elin, Van Hoorebeke, Luc   +3 more
core  

Non‐Destructive Inspection of TCPs Using Pulse‐Echo Ultrasound and X‐Ray Microcomputed Tomography Techniques

X-Ray Spectrometry, EarlyView.
ABSTRACT Thermoplastic composite pipes (TCPs) have potential applications in offshore oil and gas industries because of their strength, lack of corrosion, and flexibility. Designed for fluid transportation in high‐pressure and high‐temperature environments, manufacturing defects and operational loads can compromise their performance.
Marcella Grosso Lima, Ighor B. C. de Paula, Raquel Marques Cautivo, Cesar Giron Camerini, Marysilvia F. da Costa, Hector G. Kotik, Celio A. Costa, Alessandra S. Machado, Davi F. Oliveira, Ricardo T. Lopes, Gabriela Ribeiro Pereira   +10 more
wiley   +1 more source

Evaluation of flow and filling of root canal sealers using different methodologies

Revista de Odontologia da UNESP, 2020
Introduction Flow and filling ability of root canal sealers are indispensable for hermetic sealing of the root canal. Micro-computed tomography (micro-CT) can be used as a complementary methodology to evaluate such properties.
Fernanda Ferrari Esteves TORRES, Juliane Maria GUERREIRO-TANOMARU, Jader Camilo PINTO, Idomeo BONETTI-FILHO, Mário TANOMARU-FILHO   +4 more
doaj   +1 more source