研究発表 - 山下 久直
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Prebreakdown light emission in liqu?d helium
平田 賢，金子周平，山澤一彰，山下久直
1998 IEEE ISEIM,
1998年09月,Toyohashi
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Prebreakdown current pulse at streamer inception in cyclohexane
鶴田宜夫，片山幸久，山澤一彰，山下久直
1998 IEEE ISEIM,
1998年09月,Toyohashi
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A study of three-dimensional measurement of pre-breakdown streamer in dielectric liquids
大月俊策，山澤一彰，山下久直
1993 IEEE CEIDP,
1997年10月,Minneapolis
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Calculation of the electric field distribution under the point-plane gap configurations using the FEM
山澤一彰，山下久直
1993 IEEE CEIDP,
1997年10月,Minneapolis
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The characteristics of streamers in perfluoro liquids
Miyano, K., Yamazawa, K., Pompili, M., Mazzetti, C., Yamashita, H.
1993 IEEE CEIDP,
1997年10月,Minneapolis
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On a definition of positive and negative streamers observed optically in liquids
室岡義広，中野俊樹，山下久直
Proc. 12 ICDL,
1996年07月,Rome
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Ring vortices in point-plane gaps at sub-breakdown fields
Watson, P.K., Yamashita, H., Chadband, W.G.
Proc. 12 ICDL,
1996年07月,Rome
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Prebreakdown light emission, density change streamer and current pulses in liquid nitrogen
Yamazawa, Sugiura, K., Yamashita, H.
Proc. 12 ICDL,
1996年07月,Rome
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The effect of tip curvature on the prebreakdown density change streamer in cyclo-hexane
山下久直，山澤一彰，待鳥 渡，王 雲松
Proc. 12 ICDL,
1996年07月,Rome
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Prebreakdown light emission and current pulses in liquid nitrogen
山澤一彰，杉浦健治，山下久直
1993 IEEE CEIDP,
1995年10月,Virginia Beach
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Observation of prebreakdown light emission phenomena in liquid nitrogen
山澤一彰，杉浦健治，待鳥 渡，山下久直
Proc. ISEIM,
1995年07月,Tokyo
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Simultaneous measurements of streamer and partial discharge processes in perfluorinated polyether
Yamashita, H., Okumura, M., Yamazawa, K., Pompili, M., Mazzetti, C., Forster, E.O.
Proc. 4 ICPADM, Brisbane,
1994年07月 -
Prebreakdown phenomena in cryogenic liquids
Yamazawa, Yamashita, H., Forster, E.O.
Proc. 4 ICPADM, Brisbane,
1994年07月 -
The measurements of streamer initiation in cyclohexane under high magnification
Yamazawa, Forster, E.O., K., Uemura, M., Yamashita, H.,
1994 IEEE ISEI, Pittsburgh,
1994年06月 -
The observation of cathode streamer initiation in dielectric liquids under high magnification
Uemura, M., Yamazawa, K., Yamashita, H.,Forster, E.O.
1993 IEEE CEIDP, Pocono-Manor,
1993年10月 -
The growth and collapse of streamer channels in insulating liquids
Watson, P.K., Sufian, T., Chadband, W.G.Yamashita, H.
Proc. 11 ICDL,
1993年07月,Baden
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Current pulse measurement system using LED in dielectric liquids under impulse voltage conditions
Yamazawa, K., Uemura, M., Yamashita, H.,Forster, E.O.
Proc. 11 ICDL,
1993年07月,Baden
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A study of the effect of electrical breakdown in dielectric liquids on the needle point structure
Patrissi, S., Pompili, M., Forster, E.O.
Proc. 11 ICDL,
1993年07月,Baden
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The effect of the electrode gap on the breakdown process in liquid dielectrics
Forster, E.O., Yamashita, H., Mazzetti, C.,Pompili, M., Caroli, L., Patrissi, S.
Proc. 11 ICDL, Baden,
1993年07月 -
A comparison of streamer and partial discharge inception voltages in liquid dielectrics
Mazzetti, C., Pompili, M., Yamashita, H.,Forster, E.O.
IEE 6 DMMA,
1992年09月,Manchester
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The inception and structure of pre- breakdown streamers in perfluorinated polyethers
Fenimore, C., Stricklett, K.L., Yamashita, H.Kawai, H., Forster, E.O., Pompili, M.
Proc. 10 ICDL,
1990年09月,Grenoble
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Observations of Partial discharges in hexane under high magnification
Stricklett, K.L., Kelley, E.F., Yamashita, H.Fenimore, C., Pace, M.O., Blalock, T.V., Wintenberg, A.L., Alexeff, I.
Proc. 10 ICDL,
1990年09月,Grenoble
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The effect of high pressure on pre- breakdown phenomena in n-hexane
Yamashita, H., Kawai, H., Stricklett, K.L., Kelley, E.F.
Proc. 10 ICDL,
1990年09月,Grenoble
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Electrical breakdown and streamer statistics in n-hexane under uniform field conditions
Stricklett, K.L., Kelley, E.F., Yamashita, H.Kawai, H., Fenimore, C.
1990 IEEE ISEI,
1990年06月,Toronto
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Pressure effects on partial discharges in hexane under DC voltage
Pace, M.O., Wintenberg, A.L., Blalock, T.V., Kelley, E.F., FitzPatrick, G.J., Fenimore, C., Yamashita, H.
1989 IEEE CEIDP,
1989年10月,Virginia
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7. Prebreakdown phenomena in hydrocarbon liquids
山下久直，花岡正揚，天野 弘
Proc. 9 ICDL, Salford,
1987年07月 -
Pre-breakdown current and light emission in transformer oil
山下久直，岡田健彦，天野 弘
Proc. 8 ICDL, Pavia,
1984年07月 -
The effect of space charge on d.c. conduction in transformer oil under non-uniform field
山下久直，泉 彰司，末高 聡，天野 弘
Proc. 8 ICDL, Pavia,
1984年07月 -
Prebreakdown density change and current in transformer oil under non-uniform field
山下久直，石川雅之，天野 弘
Proc. 7 ICDL, Berlin,
1981年07月 -
The effects of additives on liquid motion in transformer oil under non-uniform field
山下久直，井沢利和，天野 弘
Proc. 6 ICDL, Rouen,
1978年07月 -
Optical and optoelectronic observation of pre-breakdown phenomena in transformer oil under non-uniform field
山下久直，石川雅之，天野 弘
Proc. 6 ICDL, Rouen,
1978年07月 -
The effect of SF6 on partial discharge in transformer oil under non-uniform field
山下久直，天野 弘，森 為可
Proc. 5 ICDL, Delft,
1975年07月