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 numerically study Turing patterns (TPs) on two-dimensional surfaces in R3 using a surface model for polymerized membranes. The simulation results clearly show that anisotropies in the mechanical deformation properties, particularly the easy axes associated with the stretching and bending of the membranes, determine the direction of the TPs to be perpendicular or parallel to the easy axes.

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

Hiroki KURITA
Graduate School of Environmental Studies, Tohoku University

Silicon carbide (SiC) with a density gradient structure was fabricated via direct ink writing (DIW), achieving a 48% improvement in bending strength compared to conventional high-density SiC. The effectiveness of the LHL structure was demonstrated, where compressive stress in the low-density layers suppressed crack initiation and enhanced fracture strength.

Epoxy polymer for ammonia storage solutions

Nicolas MARY
INSA Lyon

The overall project deals with the monitoring of material used for ammonia storage. This task was dedicated to the developpement of a monitoring solution of the degradation of different polymer resin in contact with an aquous based solution. Results point out the possibility from US measurements to detected physical modification in the polymer properties during water uptake.

VIVO-CHIP: Vascular Integration in Three-Dimensional Organoid-on-Chip Platform

Nicolas AZNAR
University Claude Bernard Lyon 1

This project aims to develop an advanced organoid-on-chip platform to investigate the intricate interplay between organoids, different cell types, and vascularization processes within a physiologically relevant microenvironment. The study will focus on enhancing our understanding of the dynamic interactions between organoids and vascular networks, with potential applications in cancer modeling and drug screening.

Monitoring eukaryotic cell functions under various hypoxic conditions with microfluidic differential oxygenators

Jean-Paul RIEU
University Claude Bernard Lyon 1

We develop microfluidic tools to study the aerotaxis (motion toward oxygen) as well as cellular adaptation of various eukaryotic cells. The aerotactic response of the asocial amoeba Acanthamoeba measured with a double-layer device is stronger than the response of Dictyostelium (previous results). A new device offering complementary functions, where oxygen level is controlled by gas permeation through the porous PDMS, has been validated.

Numerical Study on Electrical Drift and Diffusion of Ions in Polymer Strips

Joel COURBON
INSA Lyon

Electric double layer was successfully simulated by introducing the decrease in diffusion coefficient as ion concertation increases. Numerical simulation predicts rather well for current density as well as the bending behavior of the actuator. The bending mechanism was well explained by the numerical simulation. Effect of the charge injection needs to be considered for the applied electric field higher than 10 MV/m.

Experimental study of new model electroactive materials (TEmPuRA)

Gildas COATIVY
INSA Lyon

Low-Tg epoxy-amine materials containing cationic monomers, i.e. with cations fixed and anions free to move, have been developed. They will be compared with other systems containing the same anions but mobile cations, both experimentally and by modeling to determine the role of cations on their electro-mechanical behavior.

Coupled Analysis Approach to Integrated Multiphase Energy Systems

Jun ISHIMOTO
Institute of Fluid Science, Tohoku University

A research group led by Professor Jun Ishimoto of the Institute of Fluid Science, Tohoku University, and Honda Motor Co., Ltd. focused on the narrow lubricant film flow with phase change between the engine piston pin and connecting rod small end. We developed a new analytical method to simulate and predict tribological properties under severe loading conditions (Figure 1). As a result, we succeeded in simulation prediction of the wear and seizure locations in the sliding parts. We found that the specific deformation behavior of the components is the cause of the wear and seizure. This research method applies to automotive engines and all sliding component elements using fluid lubrication. It contributes to damage prediction and formulating safety guidelines for transportation and industrial machinery components. This research will reduce wear and durability test time and manufacturing costs and enable optimal design of all mechanical contact elements.

Shape estimation of pipe inner corrosion based on ultrasonic reflection

Hiroyuki NAKAMOTO
Kobe University

This study confirmed that the simulation data, calculated using the finite-difference time-domain method, closely agreed with the experimental data of pulse waves reflected on a periodic flaw surface. Additionally, a deep neural network trained on the simulation data demonstrated potential for predicting the flaw's pitch and depth.

Nonlinear Bifurcation and Dynamic Mode decomposition for Taylor Vortex in Gap between Rotating Two Cylinders/Cones

Takahiro ADACHI
Akita University

We are conducting mode analysis using DMD on the flow field obtained from numerical simulation. We are comparing the obtained DMD modes with the results of classical linear stability analysis.

Active Control of Protein Mass Transfer by Membranes with Various Pore Patterns

Atsuki KOMIYA
Institute of Fluid Science, Tohoku University

Mass Transfer Enhancement and Control by using Ultrasound Induced Flow

Atsuki KOMIYA
Institute of Fluid Science, Tohoku University

Carbon diffusion in iron assisted by an electric field

Patrice CHANTRENNE
INSA Lyon