A5070097060- Electrostatic Discharge in Electronics
- Granular flow and fluidized beds
- Recycling and Waste Management Techniques
- Electrohydrodynamics and Fluid Dynamics
- Catalytic Processes in Materials Science
- Hydrogels: synthesis, properties, applications
- Advanced Photocatalysis Techniques
- Anaerobic Digestion and Biogas Production
- TiO2 Photocatalysis and Solar Cells
- Aerosol Filtration and Electrostatic Precipitation
- Adsorption and biosorption for pollutant removal
- Electrowetting and Microfluidic Technologies
- 3D Printing in Biomedical Research
- Extraction and Separation Processes
- Lightning and Electromagnetic Phenomena
- Electrostatics and Colloid Interactions
- Algal biology and biofuel production
- Mineral Processing and Grinding
- Surface Roughness and Optical Measurements
- Enzyme Catalysis and Immobilization
- Biofuel production and bioconversion
- Cyclone Separators and Fluid Dynamics
- Advanced Sensor and Energy Harvesting Materials
- Plasma Applications and Diagnostics
- Soil Geostatistics and Mapping
Soka University
2016-2025
Soka University of America
2003-2021
Bioengineering (Switzerland)
1994-1997
Tokyo University of Science
1987-1989
Advanced Institute of Industrial Technology
1987-1989
A new model is proposed for a mechanism dominating the charge generated on particle due to impact or contact with metal plate. In this model, impact/contact charging of determined as remaining by relaxation process gaseous discharge in atmospheric conditions; here, some difficulties simple condenser are avoided. The prediction good agreement `equilibrium charges` given result experiments. Furthermore, experiments conducted Ar gas indicated that characteristics changed corresponding breakdown...
In this paper, the `charge-relaxation model' proposed in our preceding paper as a scheme determining impact charge is discussed detail, especially for case of an arbitrary initial charge. It shown that model explains well not only `equilibrium charge' but also `charging line' terms proportional dependence on The comparison between measured and theoretical value shows increases with increasing velocity angle has at saturation about 110% estimated by non-empirical theory. charging conducting...
The consortium of microalgae and nitrifying bacteria has attracted attention owing to its advantages, such as energy- cost-efficiency in terms using only light irradiation without aeration. However, high intensity can easily cause photoinhibition bacteria, resulting process breakdown the consortium. This challenge limits practical application outdoor environment. In a previous study, we developed "light-shielding hydrogel" which entrapped carbon black-added alginate hydrogel beads confirmed...
Abstract This article reports on measurements of the electrostatic charge particles in a turbulent duct flow. In contrast to previous measurements, which do not apply flows or give only sum all particles’ charges, new method resolves powder flow spatially. The experiment consists particle tracking velocimetry (PTV) system and electrode plates that generate an electric field. By comparing velocities accelerations with without field, time-averaged local profile is derived. Spatially resolving...
Isotype heterojunction g-C 3 N 4 synthesized from urea and thiourea showed high photocatalytic activity, completely decolorizing Rhodamine B in 15 min under visible light. Immobilized an alginate hydrogel, it maintained efficiency over 10 cycles.
Abstract In the processing of particulate solids, interparticle and particle‐wall collisions can generate electrostatic charges. This lead to a variety problems ranging from fire explosion hazards segregation, caking blocking. For fundamental understanding particle charging, it is essential study charge transfer due single impacts on target. A new experimental rig that measure generation impact between target plane has been designed constructed. this study, pharmaceutical particles were...
Recyclable thermoresponsive heavy metal adsorbents, poly(NIPAM-co-AA) immobilized on silica-coated magnetite nanoparticle (MNP) were prepared by changing the weight ratio between N-isopropylacrylamide (NIPAM) and acrylic acid (AA) monomer employed for ion recovery. The results showed that adsorbent with smallest AA amount of 28 mol% in copolymer exhibited both highest 0.489 g-copolymer/g-MNP Cu(II) adsorption capacity 0.511 mol/g-MNP. result competitive using Cu(II), Co(II), Mn(II) Ni(II)...
ABSTRACT Microalgae-nitrifying bacterial consortia have attracted attention as energy-efficient nitrogen removal methods that do not require aeration. However, the photoinhibition of nitrifying bacteria is a hurdle to their practical application. We developed ‘light-shielding hydrogel’ mitigates bacteria, and it demonstrated performance high ammonia even under strong light irradiation. effect carbon black (CB) concentration in hydrogel its optimization yet been examined. In this study,...
Powder handling operations can give rise to the tribo-electrification of particles, causing a number problems such as risk fire and explosion, particle adhesion walls processing equipment segregation. Current methods available for measuring dynamic charging bulk powders are unsuitable testing/handling small quantities powders, some which highly active. Furthermore, very little work has been reported on effect segregation components mixtures.A methodology recently developed investigating...
Abstract In this study, systematic examination of the effect different polymer types (functional groups) on one‐step synthesis immobilized magnetite nanoparticle via modified coprecipitation method was carried out. By using five polymers with functional groups polyacrylic acid (PAA), polyacrylamide (PAM), polyethylene glycol (PEG), imine (PEI), and polyvinyl alcohol (PVA), difference formation, immobilization, composite particle size, zeta potential magnetic properties resulting were...
During particulate solid processing, particle-particle and particle-wall collisions can generate electrostatic charges. This may lead to a variety of problems ranging from fire explosion hazards segregation, caking, blocking. A fundamental understanding the particle charging in such situations is therefore essential. For this purpose we have developed new device that measure charge transfer due impact between single metal plate. The consists an test system two sets Faraday cage preamplifier...