- Material Dynamics and Properties
- Inertial Sensor and Navigation
- Innovations in Concrete and Construction Materials
- Metallurgical Processes and Thermodynamics
- Fluid Dynamics and Thin Films
- Ultrasonics and Acoustic Wave Propagation
- Composite Material Mechanics
- Astronomical Observations and Instrumentation
- Rheology and Fluid Dynamics Studies
- Granular flow and fluidized beds
- Nonlinear Dynamics and Pattern Formation
- Dam Engineering and Safety
- Structural Health Monitoring Techniques
- Computer Graphics and Visualization Techniques
- Non-Destructive Testing Techniques
- Mechanical Behavior of Composites
- Music Technology and Sound Studies
- Fluid Dynamics and Heat Transfer
- Internet of Things and Social Network Interactions
- Tree Root and Stability Studies
- Handwritten Text Recognition Techniques
- Structural Analysis and Optimization
- Cellular Automata and Applications
- Advanced Adaptive Filtering Techniques
- Textile materials and evaluations
The Graduate University for Advanced Studies, SOKENDAI
2024
Nihon University
2006-2023
Nara Women's University
2022
Institute of Agricultural Machinery
2003-2011
Bio-oriented Technology Research Advancement Institution
2011
Experiments involving vibrating pastes before drying were performed for the purposes of controlling crack patterns that appear in process. These experiments revealed a transition direction lamellar cracks from perpendicular to parallel when compared with initial external vibration as solid volume fraction paste is decreased. This result suggests "memory" paste, which visually represented morphological changes pattern. Given memory represents flow pattern induced by vibration, it should then...
In the drying process of a paste, we can imprint memory into paste that determines how it will be broken in future. That is, if vibrate before is dried, remembers direction initial external vibration, and morphology resultant crack patterns determined solely by this direction. The morphological phase diagram rheological measurement show effect induced plasticity paste.
A densely packed colloidal suspension with plasticity, called paste, is known to remember directions of vibration and flow. These memories in paste can be visualized by the morphology desiccation crack patterns. Here, we find that made charged particles cannot flow direction. If add sodium chloride into such screen Coulombic repulsive interaction between particles, comes That is, one drop salt water changes memory effect thereby tune patterns more precisely.
Because of its plasticity, a densely packed colloidal suspension, called paste, remembers directions motion, such as vibration and flow. When it dries, primary desiccation cracks propagate in direction perpendicular to the vibrational motion parallel flow which are memory effects paste. Application an oscillatory shear strain paste using rheometer reveals that transition from is induced when amplitude exceeds threshold value. Findings also demonstrate unnecessary, i.e., merely large...
When paste of fine granular particles and water is shaken in one direction then left undisturbed, memory the shaking retained for a sufficiently long time to result directional crack pattern that appears after drying. Although it has been conjectured anisotropy residual stresses caused by plastic deformation responsible this effect, time, no evidence such found. We experimentally investigated stress drying measuring bending elastic plates supporting sample found developing paste. Additional...
In the drying process of paste, we have experimentally found a method to imprint into paste direction future crack propagation. method, vibrate before it is dried. As dries, an anisotropic pattern, such as lamellar appears with directions these cracks all perpendicular initial vibration. By performing rheological measurement and by making morphological phase diagram patterns, find that plasticity plays important role in memory effect.
A densely packed colloidal suspension, called as a paste, remembers the direction of external mechanical fields, such flow and vibration. When pastes are dried, memories in visualized macroscopically anisotropic crack patterns, lamellar, radial, ring spiral. Here, we experimentally investigate how remember experiences by using paste with different size distribution particles. We find that smaller particles have better memory, sense it fields at solid volume fraction, which implies...
When a densely packed colloidal suspension, called paste, behaves as plastic fluid, it can remember the direction of its motion has experienced, such vibrational and flow. These memories kept in paste be visualized morphology crack patterns that appear when is dried. For example, remembers motion, all primary desiccation cracks propagate perpendicular to experienced. On other hand, flow along direction. To find out mechanism memory effect vibration, we perform experiments rewrite by applying...
A densely packed colloidal suspension, called a paste, is known to remember the direction of its motion because plasticity. Because memory in paste determines preferential for crack propagation, desiccation pattern morphology depends on motions (memory effect paste). Two types effects are vibration and flow. When dried, it usually shows an ``isotropic random cellular'' pattern. However, when vibrated before drying remembers vibrational motion, primary cracks propagate perpendicular...
In a uniform layer consisting of mixture granular material and liquid, it is known that desiccation cracks exhibit various anisotropic patterns depend on the nature shaking experienced before drying. The existence this effect implies information regarding direction retained as kind memory in arrangements particles. work we make measurements paste composed Lycopodium powder using microfocus x-ray computerized tomography (μCT) order to investigate three-dimensional We find shaking-induced...
We investigate the development of stresses in a drying process paste-like materials theoretically and experimentally. An invasion percolation model on nonlinear elastic lattice can describe cracking processes resulting from contraction as well dry bulk system gives non-dimensional parameter to determine conditions at which precedes drying. This also predicts that horizontal tensions increase isotropically with However, paste often exhibits anisotropic crack formation due plasticity, is known...
We experimentally find that a paste, i.e., densely packed colloidal suspension with plasticity, has memories of external mechanical fields it suffered, such as vibration and flow. also the in pastes can be visualized macroscopically anisotropic crack patterns which appear when we dry after are removed. These sustained microscopically network structures particles inside paste. The memory effect paste very useful tool for technological applications future, because imprint direction propagation...
Densely packed colloidal suspension, called paste, remembers the direction of applied forces, such as vibration and flow, these memories kept in paste can be visualized morphology desiccation crack patterns. For example, when vibration, all primary cracks propagate perpendicular to initial vibration. On other hand, along flow. These results indicate that external forces imprint easy-breakable into memories. Therefore, by controlling we tune produce various types patterns, cellular, radial,...