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Experimental and Numerical Studies of Gas Permeability through Orthogonal Networks for Isotropic Porous Material
2021
Materials
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With regard to the problem of gas flow through isotropic porous deposits, the issues were considered in the category of description of gas movement mechanisms for structural models of the skeleton. ...
On the other hand, the highest value of the flow resistance is gradually achieved in the range of gas velocity (1–10) ms−1. This is due to the different structure of the isotropic polyamide material. ...
structure of its structure Figure 4 , which is similar to a diamond pattern and has isotropic proper-ties. ...
doi:10.3390/ma14143832
fatcat:3ldf6tl3wngpnnkm72eyndobmi
$3D+t$ Morphological Processing: Applications to Embryogenesis Image Analysis
2012
IEEE Transactions on Image Processing
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Several methods (filtering, tracking, segmentation) dedicated to the analysis of 3D +1 datasets of zebrafish embryogenesis are introduced and validated through a synthetic dataset. ...
Then, we illustrate the application of these methods to the analysis of datasets of zebrafish early development acquired with various microscopy techniques. ...
ACKNOWLEDGMENT The authors would like to thank the ccIN2P3, J.-Y. Nief and P. Calvat for their support with data management, I. Colin, S. Desnoulez, and A. ...
doi:10.1109/tip.2012.2197007
pmid:22562755
fatcat:uc6uladubjewrbkcuhf5sg4j7u
A coalescence criterion for porous single crystals
2019
Journal of the mechanics and physics of solids
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2018 pre-print arXiv:1812.00842v1 fatcat:sz66cbzzc5emzedc6wqh6jtjdm
Arbitrary sets of slip systems can be considered. The coalescence criterion is assessed through comparisons to numerical limit analysis results performed using a Fast-Fourier-Transform based solver. ...
isotropic materials. ...
Tanguy for the careful reading of the manuscript. ...
doi:10.1016/j.jmps.2018.10.018
fatcat:2znz7zatfvgijc5ps6sfxeiuna
Magnetic resonance imaging for detection and analysis of mouse phenotypes
2005
NMR in Biomedicine
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Adaptation of magnetic resonance imaging (MRI) to the scale of the mouse promises to address this challenge and make major contributions to biomedical research by non-invasive assessment in the mouse. ...
Challenges unique to mouse MRI are also identified. ...
Brian Nieman is the recipient of a Canada Graduate Scholarship. Mark Henkelman is the recipient of a Canada Research Chair in Imaging. ...
doi:10.1002/nbm.981
pmid:16206127
fatcat:xym33bpwgfhnhk2q66yu6a6kri
Polarization of Femtosecond Laser for Titanium Alloy Nanopatterning Influences Osteoblastic Differentiation
2022
Nanomaterials
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We created, on polished titanium-6aluminum-4vanadium (Ti-6Al-4V) plates, a laser-induced periodic surface structure (LIPSS) using linear or azimuthal polarization of infrared beams to generate linear or ...
Taken together, we identified that creating more isotropic than linear surfaces enhances cell differentiation, resulting in an improved osseointegration. ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/nano12101619
pmid:35630841
pmcid:PMC9147489
fatcat:n7rjufgclndavder4rzaaq2qlq
Analysis of the effective thermal conductivity of isotropic and anisotropic Periodic Open Cellular Structures for the intensification of catalytic processes
2020
Chemical Engineering and Processing
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At constant solid fraction and cell size, these structures can improve the effective thermal conductivity of the solid matrix up to 40 % and 100 % for structures thickened in two or one direction respectively ...
A correlation previously derived for the description of open cell foams shows an excellent agreement with the results of POCS structures. ...
In fact, the simple geometry of this cell allows for a facile derivation of dedicated geometrical models useful for the generation of the virtual structure and for the analysis of the data. ...
doi:10.1016/j.cep.2020.108169
fatcat:cllmg6fdtff6ddlkg4vitcfo3e
A micron-scale surface topography design reducing cell adhesion to implanted materials
2018
Scientific Reports
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progress of the cell cycle. ...
which mediate the inflammatory response to foreign bodies. ...
To decouple the effect of anti-adhesive topographies, a direct comparison was performed between flat biocellulose and corresponding substrates structured with the selected isotropic and quasi-isotropic ...
doi:10.1038/s41598-018-29167-2
pmid:30022037
pmcid:PMC6052105
fatcat:prsojofb4ffpnnep2ulzfjlkxm
Enhancing retinal images by extracting structural information
2014
Optics Communications
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We were able to perform a precise shift-and-add at the sub-pixel level in order to resolve the structures of the size of single cells in the living human retina. ...
The enhancement of images with poor contrast and the detection of faint structures require objective methods for assessing perceptual image quality. ...
Acknowledgments We would like to thank Nizan Meitav for supplying us with the wide field-of-view images at the Technion. ...
doi:10.1016/j.optcom.2013.10.011
fatcat:a2shl2ux45ez7nokaghyiq5cry
A Guided Tour of Selected Image Processing and Analysis Methods for Fluorescence and Electron Microscopy
2016
IEEE Journal on Selected Topics in Signal Processing
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In this area, image processing and analysis methods are now essential to understand the dynamic organization of groups of interacting molecules inside molecular machineries and to address issues in fundamental ...
In this paper, we present recent advances in fluorescence and electron microscopy and we focus on dedicated image processing and analysis methods required to quantify phenotypes for a limited number but ...
ACKNOWLEDGMENT The authors would like to thank the members of the Inria Serpico Project-Team and of the Bioimage Analysis unit (Institut Pasteur) for their inputs and contributions to some of the ideas ...
doi:10.1109/jstsp.2015.2505402
fatcat:fgbrxtuhsfbobluogllqll6q2e
Highlighting directional reflectance properties of retinal substructures from D-OCT images
2019
IEEE Transactions on Biomedical Engineering
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In this paper, we present advanced image processing methods to perform differential analysis of a set of D-OCT images and extract the angle-dependent retinal substructures. ...
Therefore, the intensities in the stack of images are not directly comparable, and a normalization step is required before differential analysis. ...
ACKNOWLEDGMENT The authors would like to thank the medical team of the Clinical Investigation Center of the Quinze-Vingts hospital for doing the manual segmentations that enabled us to evaluate our image ...
doi:10.1109/tbme.2019.2900425
pmid:30794503
fatcat:x6fpmtfcxzggpob4p74k3bd4ua
Tomographic brain imaging with nucleolar detail and automatic cell counting
2016
Scientific Reports
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Moreover, we highlight that three-dimensional data allows for the segmentation of sub-cellular structures, including dendritic tree and Purkinje cell nucleoli, without dedicated staining. ...
Since the discovery of cells, visual inspection has been a common investigation method for localisation and analysis purposes. ...
The authors would also like to thank Hans Deyhle and Peter Thalmann for many helpful discussions and Beat Fasel for his support concerning the computational experiments on the Linux Cluster. ...
doi:10.1038/srep32156
pmid:27581254
pmcid:PMC5007499
fatcat:f3utyh62hzcfbjvlsmw7si5m3e
3D MRI of explanted sheep hearts with submillimeter isotropic spatial resolution: comparison between diffusion tensor and structure tensor imaging
2021
Magnetic Resonance Materials in Physics, Biology and Medicine
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The aim of the study is to compare structure tensor imaging (STI) with diffusion tensor imaging (DTI) of the sheep heart (approximately the same size as the human heart). ...
Tensor analysis, angles extraction and segments divisions were performed on both volumes. A 3D FLASH allows for visualization of the detailed structure of the left and right ventricles. ...
Acknowledgements The authors thank Peter Ullmann, Johannes T Schneider and Simon Stark from Bruker for providing us a homemade RF design coil with seven elements and developing protocol to map and shim ...
doi:10.1007/s10334-021-00913-4
pmid:33638739
pmcid:PMC8421292
fatcat:tz2aj7jeevhwxfptor2vb4sidm
Towards Adaptive Grids for Atmospheric Boundary-Layer Simulations
2018
Boundary-layer Meteorology
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However, the overall analysis shows that the method has a clear potential for numerical investigations of the most challenging atmospheric cases. ...
We present a proof-of-concept for the adaptive mesh refinement method applied to atmospheric boundary-layer simulations. ...
, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. ...
doi:10.1007/s10546-018-0335-9
pmid:31258159
pmcid:PMC6560679
fatcat:226wrrnk5rer7kuavch4hlq4xe
Image Analysis & Stereology: 2017 Research Highlights
2018
Image Analysis and Stereology
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Most of the contributions are relatively interdisciplinary, however, they can be assigned to the following fields of study: computer vision (2), image analysis (2), materials science (3), medical imaging ...
A detailed overview of the 22 contributions, published in volume 36 (2017) of Image Analysis & Stereology (IAS), is presented. ...
However, by broader publicity, development of dedicated software and incorporation of (semi)automated image analysis techniques, in their opinion stereology will find its way to the plant biology community ...
doi:10.5566/ias.1916
fatcat:jlfwybzvojdlrmcroxbowosipq
Analysis of spatial relationships in three dimensions: tools for the study of nerve cell patterning
2008
BMC Neuroscience
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Here we demonstrate the utility of our analysis methods to discriminate between two different simulated neuronal populations. ...
Furthermore, in conjunction with analyses of dendritic morphology, they can be used to determine the degree of dendritic coverage within a volume of tissue exhibited by mature nerve cells. ...
As well as informing us about developmental mechanisms, these methods can also be applied to adult tissue, as the spatial distribution of neurons can help assess the number of natural cell types in a structure ...
doi:10.1186/1471-2202-9-68
pmid:18644136
pmcid:PMC2491625
fatcat:cwwqfgbndbgjhgxaftml3p47pq
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