Concept
Tomography
Related publications (284)
Catalyst Aggregate Size Effect on the Mass Transport Properties of Non-Noble Metal Catalyst Layers for PEMFC Cathodes
Vasiliki Tileli, Robin Pierre Alain Girod, Michele Bozzetti, Yen-Chun Chen, Secil Unsal
Non-noble metal catalysts (NNMCs) are regarded as a promising alternative to the costly Pt-based materials required to catalyze the oxygen reduction reaction (ORR) in proton exchange membrane fuel cell (PEMFC) cathodes. However, the large diversity of NNMC ...
ELECTROCHEMICAL SOC INC2023Three-dimensional micro-CT images of UV-frozen flow fronts recorded at different flow regimes
Véronique Michaud, Jacobus Gerardus Rudolph Staal
Segmented micro-CT images of flow fronts produced by UV-flow freezing. Front morphologies correspond to capilary-dominated, equilibrated and viscous-dominated flow regimes. ...
Zenodo2023Micromechanically inspired investigation of cemented granular materials: part I-from X-ray micro tomography to measurable model variables
Cemented granular materials are abundant in nature and are often artificially produced. Their macroscopic behaviour is driven by small-scale material processes, which are generally classified as: grain breakage, cement damage and fragment rearrangement. Th ...
SPRINGER HEIDELBERG2022Cross verified independent measurements of correlated bubble property distributions as part of the scale-up of a catalytic bubbling fluidized bed reactor
Methanation can be applied as part of a Power-to-Gas (PtG) concept to store renewable electricity. Using a catalytic bubbling fluidized bed (BFB) methanation reactor allows a flexible and economic operation. Properties of bubbles rising through the fluidiz ...
EPFL20222.5 Hz sample rate time-domain near-infrared optical tomography based on SPAD-camera image tissue hemodynamics
Edoardo Charbon, Scott Anthony Lindner, Martin Wolf, Jingjing Jiang
Tim-domain near-infrared optical tomography (TD NIROT) techniques based on diffuse light were gaining performance over the last years. They are capable of imaging tissue at several centimeters depth and reveal clinically relevant information, such as tissu ...
OPTICAL SOC AMER2022Exploring the inner workings of the clove hitch knot
Pedro Miguel Nunes Pereira de Almeida Reis, Tomohiko Sano, Paul Johanns, Changyeob Baek, Paul Grandgeorge
We perform a combined experimental and computational investigation of the clove hitch knot. We develop a physical model for the clove hitch by tying an elastic rod onto a rigid cylinder. In the experiments, we characterize the mechanical performance, geome ...
ELSEVIER2022Bragg edge tomography characterization of additively manufactured 316L steel
Roland Logé, Christian Leinenbach, Efthymios Polatidis, Markus Strobl, Nikola Kalentics
In this work we perform a neutron Bragg edge tomography of stainless steel 316L additive manufacturing samples, one as built via standard laser powder bed fusion, and one using the novel three-dimensional (3D) laser shock peening technique. First, we consi ...
AMER PHYSICAL SOC2022LSSANet: A Long Short Slice-Aware Network for Pulmonary Nodule Detection
Convolutional neural networks (CNNs) have been demonstrated to be highly effective in the field of pulmonary nodule detection. However, existing CNN based pulmonary nodule detection methods lack the ability to capture long-range dependencies, which is vita ...
SPRINGER INTERNATIONAL PUBLISHING AG2022Physics-informed neural networks for diffraction tomography
Demetri Psaltis, Carlo Gigli, Amirhossein Saba Shirvan, Ahmed Ayoub
We propose a physics-informed neural network (PINN) as the forward model for tomographic reconstructions of biological samples. We demonstrate that by training this network with the Helmholtz equation as a physical loss, we can predict the scattered field ...
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS2022The effect of high relative humidity on a network of water-sensitive particles (couscous) as revealed by in situ X-ray tomography
Water significantly influences the mechanical behaviour of all granular materials but none as much as hygroscopic amorphous particles. With sufficiently high water content, particles can swell, agglomerate and their mechanical properties can be reduced, ha ...
ROYAL SOC CHEMISTRY2022