Employment
PhD
Vacancies at FEMTO-ST

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Micromechanical characterisation of fibres from nettle grown on marginal lands

Micromechanical characterisation of fibres from nettle grown on marginal lands

The main objective of this PhD thesis is the development and exploitation of instruments and methods for the automated micromechanical characterization of nettle fibres.

The main tasks related to the work will be:

-           Static and dynamic characterization of single nettle fibres under various solicitation modes using micro mechatronics systems and 2D full-field measurements.

-           Development and exploitation of a generic and integrated set-up for in-situ measurements (SEM, X-ray nanotomography).

-           Development and exploitation of an innovative set-up to determine the inter-fiber shear strength.

The proposed PhD thesis is co-funded by the Graduate School EIPHI (https://gradschool.eiphi.ubfc.fr/) and the European project NETFIB (https://www.suscrop.eu/projects-first-call/netfib).

Contact: 

Vincent PLACET - vincent.placet@univ-fcomte.fr

Cédric CLEVY - cedric.clevy@univ-fcomte.fr

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PhD position : Registration of 3D optical biopsies

PhD position : Registration of 3D optical biopsies (application to medical imaging of high-resolution and wide field-of-view)

The scientific work concerns the development of accurate and robust registration methods between 3D visual information (optical biopsies). The PhD student will first focus on the development of calibration methods based on local visual features (e.g., geometric type information), matching methods, computing rigid transformations as well as reconstruction and mapping all the acquired data on the same final volume. This first work will provide a basis for extending these methods in aim to use global information such as pixel/voxel intensities, wavelet coefficients or any other global image information.

In addition, several parameters and external disturbances will be considered within this work such as physiological motion, … in order to limit potential artifacts.

This work will then be extended to non-rigid registration in which the observed tissue is subjected to a global (or a local minimum) deformation resulting, for instance, from the contact between the tissue and the imaging probe.