OHYAMA Ryu-ichiro

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Name
OHYAMA Ryu-ichiro
Affiliation
Tokai University
Section
School of Engineering
Job title
Professor
Degree
Doctor of Engineering(TOKAI UNIVERSITY), (BLANK)(TOKAI UNIVERSITY)

Research Areas

 
 

Education

 
 
 - 
1990
Graduate School, Division of Engineering, TOKAI UNIVERSITY
 
 
 - 
1985
Electrical Engineering, Faculty of Engineering, TOKAI UNIVERSITY
 

Published Papers

 
A Study on Corona Discharge Characteristics with Stratified Dielectric Plate under AC High Voltage
OHYAMA Ryu-ichiro
Proceedings of The School of Engineering, Tokai University, series E   43 1-7   Sep 2018   [Refereed]
Time Lag Characteristics of Spark Discharge in Humid Air with Increased Voltage
OHYAMA Ryu-ichiro
IEEE Transactions on Dielectrics and Electrical Insulation   25(4) 1487-1491   Aug 2018   [Refereed]
A Study on the Humidity Effect of AC Corona Discharge for a Thin-Wire Electrode Arrangement
OHYAMA Ryu-ichiro
Proceedings of The School of Engineering, Tokai University, series E   41 1-7   Sep 2016   [Refereed]
OHYAMA Ryu-ichiro
FUSION SCIENCE AND TECHNOLOGY- American Nuclear Society   67(3) 654-657   Apr 2015   [Refereed]
OHYAMA Ryu-ichiro
Applied Radiation and Isotopes   93 13-17   Aug 2014   [Refereed]

Misc

 
Ryu-ichiro Ohyama, Kiyoji Kaneeko
The Transaction of the Institute of Electrical Engineering of Japan   108(9) 375-382   1988
Visualization of Electric Fields with Space Charges by means of Fluid Mapper with Fixed Sand-Bed
The Transaction of the Institute of Electrical Engineering of Japan   109(5)    1989
Inversibility of Fulid Flow Mappers and Visual Analysis of Two Dimensional Electric Fields in Two Dielectric Substances
The Transaction of the Institute of Electrical Engineering of Japan   110(10)    1990
Visual Analysis of Electric Flux and Equi-Potential Lines at the Spherical Boundary of Complex Dielectrics
The Transaction of the Institute of Electrical Engineering of Japan   110(10)    1990
Insulation Design CAE System Operated on Personal Computer
The Transaction of the Institute of Electrical Engineering of Japan   112(4)    1992
Ryu-ichiro OHYAMA, Kiyoji KANEKO
Journal of the Flow Visualization Society of Japan   9(35) 435-441   1989
Electric Field Analysis in and around Various Voids by Fluid Flow Visualizations
Proceedings of the Institute of Electrostatics Japan   12(5)    1988
Visualization Method of Electric Flux and Equi-potential lines by means of Fluid Mappers
Proceedings of the Institute of Electrostatics Japan   14(4)    1990
Flow Visualization using Inversibility on Fluid Mappers and Its Application to Electrostatic Fields
Proceedings of 3rd International Symposium on FLUCOME      1991
Visualization of Electric Fields by means of Fluid Flow Mappers
Analysis of Electric Fields of Axisymmetrical Three Dimensional Field by Mapper Method
Proceedings of the Faculty of Engineering, Tokai University   27(2)    1987
Visualization and Analysis for Electric Fields in Dielectrics with Spherical Void
Proceedings of the Faculty of Engineering, Tokai University   28(1)    1988
Analytical Method of Axisymmetric Three Dimensional Poisson Fields by Fluid Flow Mappers
Proceedings of the Faculty of Engineering, Tokai University   28(2)    1988
Effect of Accumulated Charges on DC Surface Breakdown Characteristics of Conical Spacers
Proceedings of the Faculty of Engineering, Tokai University   28(2)    1988
Estimation Method of Accumulated Charges by means of Axisymmetric Three Dimensional FM with Fixed Sand-Bed
Proceedings of the Faculty of Engineering, Tokai University   29(2)    1989
Inversibility of Fluid Mappers and Its Applications to Electric Fields
Proceedings of the Faculty of Engineering, Tokai University   16    1990
Numerical Calculation Technique of Equi-potential and Electric Field Lines in Two Dimensional Electrostatic Fields by means of Inversibility of Fluid Flow
Proceedings of the Faculty of Engineering, Tokai University   30(2)    1990
Numerical Calculation Technique for Mapping Lines of Electric Force in Axially Symmetric Three-Dimensional Fields by Analogy of Potential Flow Fields
Proceedings of the Faculty of Engineering, Tokai University   31(1)    1991
Deterioratin Deagnosis of Insulation of XLPE Cables by Expert System Based on Fuzzy Inference
Proceedings of the Faculty of Engineering, Tokai University   31(1)    1991
Electric Field Analysis at Boundary of Complex Dielectrics by Fluid Flow Visualization
Proceedings of the 1st China-Japan Symposium on Flow Visualization      1988
Visualization of Electric Field Distribution and Tolerance by Personal Computer-Aided Engineering System
Proceedings of the 2nd China-Japan Symposium on Visualization      1992
Insulation Diagnosis of XLPE Cables by Expert Systems
Proceedings of the Faculty of Engineering of Tokai Univ.   33(2) 1-9   1993
Insulation Design CAE System based on Personal Computer
Proceedings of the Faculty of Engineering, Tokai Univ.   32(1) 1-10   1992
Measurements of Electrically Operated Flow Fields in Insulating Oil by Binary Correlation Technique
Proceedings of the Faculty of Engineering, Tokai Univ.   32(2) 1-7   1992
Measurement of Electrically Operated Flow Fields in Silicon Oil by Correlation Technique Concerning Binary Tracer Images
Proceedings of the institute of electrostatics japan   17(6) 411-416   1993
Inversibility on Fluid Mappers and Its Application to Numerical Solution of Electrostatic Field Problems
Atlus of Visualization Pergamon Press   125-138   1993
Investigation of Particle Tracking Method Using Genetic Algorithm
Third Asian Symposium on Visualization   663-668   1994
Particle Traking Method Using Genetic Algorithm and Its Application to Electrically Operated Flow Fields
The 4th Triennial International Symposium on Fluid Control, Fluid Measurement, and Visualization CERT/ONERA-DERMES   81-86   1994
Particle Tracking Method of Fluid Flow Fields by Genetic Algorithms
Proceedings of the Faculty of Engineering Tokai University   34(2) 1-9   1994
An Expert System on Insulation Deagnosis of XLPE Cables by Fuzzy inference
Trans. of The Korean Institute of Electical Engineers   44(2) 248-255   1995
Visual Analysis of electrostatic Fields
19(3) 177-185   1995
The Effect of Residual Charges on Pasitive Impulse Surface Flashover Voltage in Compressed Air (III)
Proceeding of the School of Enginering. Kyushu Tokai University   21 1-7   1994
Insulation Diagnosisi of XLPE Cables by Expert System using Fuzzy Inference
4th International Conference on Insulated Power Cables   534-539   1995
An Expert System for Insulation Diagnosis or Low Voltage Rotating Machines Using Fuzzy Inference
Trans. of The Korean Institute of Electrical Engineers   44(7) 954-960   1995
Simulation of Tree Patterns by Percolation Cluster
327-330   1995
An Expert System for Diagnosing Insulation Degradation of XLPE Cables
9th International Symposium of High Voltage Engineering   (5632) 1-4   1995
Simulation of Electrical Tree Patterns by Percolation Process
129-132   1995
Simulation of Surface Discharge Patterns by Percolation Cluster
20(2) 115-118   1996
Insulation Diagnosis of XLPE Cables by Expert System Using Fuzzy Inference
Revue de la Societe des Electriciens et des Electroniciens, Serie Specialisee   1 84   1996
Experimental Flow Measurements of Electrohydrodynamic Convection Fields by Particle Image Velocimetry
Annual Report of Conference on Electrical Insulation and Dielectric Phenomena   1 328   1996
An Experimental Study of The Optical Characterization of AC Electrohydrodynamic Fields by Particle Image Velocimetry
Annual Report of Conference of Electrical Insulation and Dielectric Phenomena   2 656-659   1997
Visualization of EHD Fluid Motion Induced by Surface Corona Discharge
Trans. IEE of Japan   118(6) 743-744   1998
Visualization of Electrohydrodynamic Fluid Motion Coupled to Current Flow Along Dielectric Liquid Surface
Proceedings of 8th International Symposium on Flow Visualization   (29) 1-6   1998
Optical Characterization of Steady Electrohydrodynamic Fluid Motion Induced by Surface Corona Discharge
Annual Report Conference on Electrical Insulation and Dielectric Phenomena, IEEE   I 158-161   1998
Measurements of Unsteady Electrohydrodynamics Flow from Injection Charges on Free Surface by Particle Image Velocimetry
Annual Report Conference on Electrical Insulation and Dielectric Phenomena, IEEE   I 162-165   1998
Development of Electrostatic Precipitator Analyses Code Algorithm for Control of Fine Particulate in Industorial Flue Gases
Proceedings of 1999 Soc. France Electrostatic Meeting, S.F.E   1 65-69   1999
Image Analysis of Gas-Phase Corona Discharge Induced Electrohydrodynamic Liquid Flow in Stratified Fluid Observed by Particle Image Velocimetry
Annual Report Conference on Electrical Insulation and Dielectric Phenomena, IEEE   II 777-780   1999
Measurement of Steady Electrohydrodynamic Fluid Motion Induced under Surface Corona Discharge by Schlieren Photographs
Annual Report Conference on Electrical Insulation and Dielectric Phenomena, IEEE   II 781-784   1999
Electrical Current Conduction and Electrical hydrodinamically Induced Fluid Flow in an AW Type EHD Pump
Proceedings of 2nd International Workshop on Electrical Conduction, Convection and Breakdown in Fluids   1 174-177   2000
Development of Electrostatic Precipitator Optimization Codes for Control of Fine Particulate in Industrial Flue Gases
Proceedings of Environmental Science and Technology Alliance Canada, 1999   B(9) 1-26   1999
Numerical Modelling of Wire-Plate Electrostatic Precipitator for Control of Submicron and Ultra Fine Particles
Journal of Aerosol Science   31(Suppl.1) 162-163   2000
Electrical Current Conduction and Electricalhydrodynamically Induced Fluid Flow in an AW Type EHD Pump
Proc. 2nd Workshop of Electrical Conduction Convection and Breakdown in Fluids   174-177   2000
Numerical Modelling of Wire-Plate Electrostatic Precipitator for Control of Submicron and Ultra Fine Particles
Journal of Aersol Sci.   31(Suppl.1) 162-163   2000
Polarity Effect on Electrical Current Conduction and Electrohydrodynamically Induced Fluid Flow in an AW Type EHD Pump
Proc. of 2000 Conference on Electrical Insulation and Dielectric Phenomena, IEEE   1 61-64   2000
Experimental Study on Ionic Wind Measurement of an Electrohydrodynamically Induced Gas-Liquid Two-Phase Flow Field by Particle Image Velocimetry
Proc. of 2000 Conference on Electrical Insulation and Dielectric Phenomena, IEEE   1 81-84   2000
Image Analysis of Internal Liquid Flow in an AW Type EHD Pump
Proc. IEEE 2001 Annual Conference on Electrical Insulation and Dielectric Phenomena   2, 512-515    2001
Electrohydrodynamically Induced Fluid Flow in an AW Type EHD Pump
Proc. 4th International Workshop on Electrohydrodynamics and Its Applications   31    2001
An Experimental Study on Thermally and Vibratingly Accelerated Life Tests for Insulating Layer of Same-Phase Low Voltage Stator Windings
Proc. IEEE 2001 Annual Conference on Electrical Insulation and Dielectric Phenomena   1, 221-224 
PFC Destruction Technology Using Catalyst in Surface Discharge Plasma
Proc. 9th Annual ISESH Conference   PEC-09, 1-6    2002
Experimental Analyses of Gas Liquid Interfacial Phenomena in an AW Type EHD Pump
Proc. IEEE 2002 Annual Conference on Electrical Insulation and Dielectric Phenomena   1, 200-203    2002
A Computerized Visualization of Gas-Phase EHD Flow Field for Needle-Plane Electrodes System
Proc. IEEE 2002 Annual Conference on Electrical Insulation and Dielectric Phenomena   1, 192-195    2002
Current Density Distribution on Gas-Liquid Two-Phase Fluid Flow in an Air-Wave Type EHD Pump
Proc. IEEE 2003 Annual Conference on Electrical Insulation and Dielectric Phenomena   pp.690-693    2003
Image Analysis of Gas-Phase EHD Flow Field for Needle-Plane Electrode System
Proc. IEEE 2003 Annual Conference on Electrical Insulation and Dielectric Phenomena   pp.694-697    2003
Experimental Visualization of Corona Discharge Progress for Gas-Liquid Two-Phase EHD Flow Phenomenon
Proc. of 4th S.F.E. Int. Conference   pp.341-344    2004
An experimental study on neutraization of non-thermal plasma oxidized diesel engine combustion exhaust NOx gases with hydrated lime filter
Proc. IEEE 2004 Annual Conference on Electrical Insulation and Dielectric Phenomena   pp.114-117    2004
An experimental Study on Electrohydrodynamically Induced Silicon Oil Vapor Flow under DC Corona Discharge
Proc. IEEE 2004 Annual Conference on Electrical Insulation and Dielectric Phenomena   pp.126-129    2004
An experimental NOx treatment in diesel engine combustion exhaust gases by non-thermal plasma and activated carbon filter combinations
Proc. IEEE 2004 Annual Conference on Electrical Insulation and Dielectric Phenomena   pp.130-133    2004
A.Nagai, R.Ohyama
Proc. IEEE 2005 Annual Conference on Electrical Insulation and Dielectric Phenomena   681-684   2005
D.Ai, R.Ohyama
Proc. IEEE 2005 Annual Conference on Electrical Insulation and Dielectric Phenomena   685-688   2005
Y.Nanjo, R.Ohyama
Proc. IEEE 2005 Annual Conference on Electrical Insulation and Dielectric Phenomena   689-692   2005
R.Sakuma, R.Ohyama
Proc. IEEE 2005 Annual Conference on Electrical Insulation and Dielectric Phenomena   693-696   2005
R.Ohyama, M.Kumeta, A.Ueda, A.Watson, J.S.Chang
Journal of Visualization   8(4) 339–346   2005
S.Kikuchi, R.Ohyama
Proc. IEEE 2006 Annual Conference on Electrical Insulation and Dielectric Phenomena   170-173   2006
K.Aoyagi, Y.Kitahara, R.Ohyama
Proc. IEEE 2006 Annual Conference on Electrical Insulation and Dielectric Phenomena   174-177   2006
T.Shirotsuka, R.Ohyama
Proc. IEEE 2006 Annual Conference on Electrical Insulation and Dielectric Phenomena   178-181   2006
R.Ohyama, K.Aoyagi, Y.Kitahara, Y.Ohkubo
Journal of Visualization   10(1) 75-82   2007
Visualization of Electrohydrodynamical Phenomena -Electrohydrodynamically Induced Fluid Flow in Corona Discharge Fields-
R.Ohyama, K.Aoyagi, Y.Kitahara, Y.Ohkubo
Journal of The Visualization Society of Japan   27(105) 14-18   2007
T.Kono, R.Ohyama
Proc. IEEE 2007 Annual Conference on Electrical Insulation and Dielectric Phenomena   517-520   2007
K.Ueno, R.Ohyama
Proc. IEEE 2007 Annual Conference on Electrical Insulation and Dielectric Phenomena   521-524   2007
M.Sakamoto, S.Kikuchi, R.Ohyama
Proc. IEEE 2007 Annual Conference on Electrical Insulation and Dielectric Phenomena   525-528   2007
Y.Kitahara, K.Aoyagi, R.Ohyama
Proc. IEEE 2007 Annual Conference on Electrical Insulation and Dielectric Phenomena   529-532   2007
R.Ohyama, M.Sakamoto, A.Nagai
Journal of Physics D: Applied Physics   42(10) 105203 (4pp)   2009

Books etc

 
Inversibility of Fluid Mappers and Its Application to Numerical Solution of Electrostatic Field Problems
Atlas of Visualization   1992   

Works

 
Analysis of axisymmetric three Dimensional electrostatic fields by means of fluid flow Visualizations
1988
Visualization f both the lines of electric force and Equipotential contours in electrostatic fields by Fluid Mapper technique
1991
Particle Tracking Technique of Fluid Flow Fields by Image Processing
1992
Study on Electrohydrodynamics
1994
Flow Measurement of Gas-Liquid Two-Phase Fluid
1997

Research Grants & Projects

 
Study on Electric-Hydrodinamic Phenomena
Project Year: 1990   
Flow Measurement of Gas-Liquid Two-Phase Fluid
Project Year: 1995   
Removal of CF4 Gas by Plasma
Project Year: 1990   
Insulation Diganasis of Low-Voltage Rotating Machines by Expert System
Project Year: 1990