A5080920906- Granular flow and fluidized beds
- Aerosol Filtration and Electrostatic Precipitation
- Particle Dynamics in Fluid Flows
- Cyclone Separators and Fluid Dynamics
- Electrohydrodynamics and Fluid Dynamics
- Electrical and Bioimpedance Tomography
- Microfluidic and Bio-sensing Technologies
- Mineral Processing and Grinding
- Powder Metallurgy Techniques and Materials
- Fluid Dynamics and Heat Transfer
- Recycling and Waste Management Techniques
- Electrostatic Discharge in Electronics
- Electrostatics and Colloid Interactions
- Microfluidic and Capillary Electrophoresis Applications
- Injection Molding Process and Properties
- Advanced Sensor and Energy Harvesting Materials
- Engineering Applied Research
- Mechanical and Thermal Properties Analysis
- Rheology and Fluid Dynamics Studies
- Plasma Applications and Diagnostics
- Magnetic and Electromagnetic Effects
- Erosion and Abrasive Machining
- Fluid Dynamics and Turbulent Flows
- Flow Measurement and Analysis
- Icing and De-icing Technologies
Kyoto University
2015-2024
Kobayashi Pharmaceutical (Japan)
2023
Kyoto Katsura Hospital
2005-2021
Railway Technical Research Institute
2011
Materia (United States)
2010
National University of Singapore
2004
Hiroshima University
1985
Impact electrification between an elastic sphere and a metal plate has been studied experimentally. To find out how charge transfers the contact bodies, voltage profiles at impact are measured under various experimental conditions using digital oscilloscope, simultaneously deformation of is visualized with high-speed camera. The initial on transferred obtained from integrated respect to elapsed time process. variation by repeated impacts analysed taking account relaxation time. Furthermore,...
The flowability of powders used in tableting significantly affects tablet weight and content uniformity active pharmaceutical ingredients. Use granulated materials instead powdered can improve flowability. In this study, the effect particle size distribution on lactose was quantitatively analyzed. Three types were classified into progressively narrower fractions, nine samples systematically prepared. mass median diameters nearly constant (i.e., 130.5 ± 13.5 μm) geometric standard deviations...
The phenomenon of electrostatic charge generation and its effects on granular flow behavior in a pneumatic conveying system was studied. main parameters used for quantitative characterization the were induced current, particle density, equivalent current charged flow. These measured using digital electrometer, Faraday cage, modular parametric transformer, respectively. Three different patterns corresponding to within observed, these named disperse flow, half-ring ring patterns. It found that...
When particles are transported in pipelines, they acquire electrostatic charges as come into contact with the pipe wall. Charged can cause problems such particle agglomeration, blockage, and explosion. Understanding charge help to prevent these issues. This study investigates a technique for predicting straight of any given length, well length at which equilibrium occurs, through experimentation short 1‐m section. Experimentation five different types four wall materials longer lengths were...
The removal of particulate contaminants adhering to a surface has been investigated using dry ice blasting system. Monosized spherical latex particles micron and submicron sizes were used as contaminants, while the jet was produced by thermal expansion liquid carbon dioxide (CO2). Removal observed in situ high-speed microscope camera quantified through digital image analysis. experimental results showed that performs well for cleaning, which is attributed collision with contaminants. For...
ABSTRACT Particle reentrainment from a fine powder layer was investigated both in steady-state flow and an unsteady-state (accelerated) flow. Experiments were conducted rectangular channel, where of fly ash placed. The average air velocity increased at constant rate the range 0.01–0.6 m/s2 up to certain and, thereafter, it maintained velocity. flux measured automatically by electrostatic method. Microscopic observation showed that small aggregates reentrained randomly surface layer, then...
When two different materials are brought into contact and separated, an electrical charge is transferred from one to the other. This phenomenon called electrification, charging, or tribocharging. Charged particles cause various secondary phenomena during powder processing, such as deposition, adhesion, electrostatic discharge. Additionally, charged used in many industrial applications electrophotography, coating, separation; thus, particle control very important for improving performance....