Turing patterns on thermally fluctuating membranes: Numerical and mathematical studies on the origin of anisotropic Turing patterns

Fumitake KATO
National Institute of Technology, Ibaraki College

We present numerical results for Turing patterns (TPs) governed by reaction–diffusion equations describing the activator u and the inhibitor v on two- and three-dimensional lattices without vertex fluctuations. The results indicate that biological TPs respond to external mechanical forces in a manner similar to that of TPs on fluctuating membranes.

KERATOX project : Study of the Impact of Hypoxia on Human Keratinocytes

Nicolas AZNAR
University Claude Bernard Lyon 1

KERATOX establishes a robust oxygen-controlled model showing that hypoxia preserves keratinocyte growth while promoting migration. These findings support mechanistic studies of HIF/VEGF signalling and the development of pro-regenerative strategies for wound healing and hypoxia-associated skin disorders.

Shape estimation of pipe inner corrosion based on ultrasonic reflection

Hiroyuki NAKAMOTO
Kobe University

Ultrasonic waves reflected on the surface with periodic flaws have tail waves that induce spectral dips at specific frequencies.

Simulation data analysis showed that the tail wave was generated through mode conversion between longitudinal and surface waves on the periodic flaws.

This result indicates that the shape estimation using the tail wave is reasonable.

Local compression test of 3D-printed SiC in an electron microscope

Hiroki KURITA
Graduate School of Environmental Studies, Tohoku University

Density-gradient SiC fabricated by direct ink writing achieved a 48% increase in specific bending strength compared with monolithic SiC.

Residual compressive stress generated in low-density surface layers effectively suppressed crack initiation and enhanced fracture resistance.

Carbon diffusion in iron assisted by an electric field: Model and experiment

Patrice CHANTRENNE
INSA Lyon

The influence of the electric field on carbon diffusion into iron (ferrite and austenite phases are considered) is investigated using molecular dynamics simulations. It is shown that the carbon drift velocity has a non linear behavior when the electric field intensity increases. Molecular Dynamics results are compared with a diffusion based theoretical model. One of the conclusion is that it is important to account for the influence of the electric field intensity on the diffusion energy barrier and diffusion path to accurately predict the drift velocity of C in ferrite.

Monitoring eukaryotic cell functions under controlled oxygen conditions with microfluidic devices

Jean-Paul RIEU
University Claude Bernard Lyon 1

We are developing various types of microfluidic devices compatible with cancer cell or amoeba in-situ long term culture and O2 level control (homogeneous level or gradients) to test adaptation of cells to hypoxia. We have been so far comparing two types of amoebae (the social amoeba Dictyostelium discoideum and the solitary one Acanthamoeba castellani), as well as breast cancer cells, MDA-MB231. We plan to test immune cells (HL-60 or dendritic cells) in forthcoming years.

Experimental study of new model electroactive materials (TEmPuRA)

Gildas COATIVY
INSA Lyon

The bending deformation can be maintained without applying the electric field → programmable materials

A local stiffening was evidenced by Atomic Force Microscopy → residual asymmetrical stiffening

Crossover study between dynamic mode decomposition and stability analysis of nonlinear flow behavior occurring between a rotating double cylinder/circular cone

Takahiro ADACHI
Akita University

We are developing a DMD-based framework that extends traditionalstability analysis by extracting latent modes embedded in unsteady flows and evaluating their growth and decay rates.

Our long-term goal is to establish a practical tool for the efficient decomposition and analysis of diverse flow phenomena, including turbulence.

Mass Transfer Enhancement and Control by using Ultrasound Induced Flow

Atsuki KOMIYA
Institute of Fluid Science, Tohoku University

Evaluation of VIP performance and investigation of degradation mechanism by aging effect

Atsuki KOMIYA
Institute of Fluid Science, Tohoku University