Spontaneous transition of the plasma confinement mode was observed in thehelical-axis heliotron device 'Heliotron J' for three different plasma heating schemes, i.e.ECH-only, NBI-only and the combination of EC...Spontaneous transition of the plasma confinement mode was observed in thehelical-axis heliotron device 'Heliotron J' for three different plasma heating schemes, i.e.ECH-only, NBI-only and the combination of ECH and NBI. The transition seems to occur above a certaincritical density. In addition to the confinement transition, a spontaneous shift of the hittingposition of the divertor plasma flux on the wall was observed. This shift could be related with thechange of the edge field topology caused by non-inductive toroidal currents.展开更多
A fast video camera is verified to be a powerful t0ol for observation of filaments/blobs near the last closed flux surface （LCFS）. In order to extract the fluctuation component from the raw data of the fast camera, ...A fast video camera is verified to be a powerful t0ol for observation of filaments/blobs near the last closed flux surface （LCFS）. In order to extract the fluctuation component from the raw data of the fast camera, a pre-processing technique, sliding time window averaging subtraction （STWAS） has been developed to remove the background of slowly varying emission from the bulk plasma. By using this pre-processing technique, the fast camera data are analyzed. A method to identify the filaments in the pre-processed image is also discussed.展开更多
榆全爪螨分布广泛。为落叶果树,尤以属于蔷薇科的重要害虫(van de vrie等,1972;Ehara,1973)。它的亲缘种柑桔全爪螨(Ehara,1984)同样广泛分布并为害多种植物。这两个种都有一些共同的宿主植物如日本梨树和桃树(Shinkaji,1961a)。而不属...榆全爪螨分布广泛。为落叶果树,尤以属于蔷薇科的重要害虫(van de vrie等,1972;Ehara,1973)。它的亲缘种柑桔全爪螨(Ehara,1984)同样广泛分布并为害多种植物。这两个种都有一些共同的宿主植物如日本梨树和桃树(Shinkaji,1961a)。而不属蔷薇科的桑树、三叶柑桔、萨摩柑桔和菜豆都是柑桔全爪螨的宿主植物(Ehara,1956 3 Shinkaji,展开更多
基金The project partially supported by the Grant-in-Aid for Science Research of MEXT in Japan and by the Collaboration Program of the Laboratory for Complex Energy ProcessesIAEKyoto University
文摘Spontaneous transition of the plasma confinement mode was observed in thehelical-axis heliotron device 'Heliotron J' for three different plasma heating schemes, i.e.ECH-only, NBI-only and the combination of ECH and NBI. The transition seems to occur above a certaincritical density. In addition to the confinement transition, a spontaneous shift of the hittingposition of the divertor plasma flux on the wall was observed. This shift could be related with thechange of the edge field topology caused by non-inductive toroidal currents.
文摘A fast video camera is verified to be a powerful t0ol for observation of filaments/blobs near the last closed flux surface （LCFS）. In order to extract the fluctuation component from the raw data of the fast camera, a pre-processing technique, sliding time window averaging subtraction （STWAS） has been developed to remove the background of slowly varying emission from the bulk plasma. By using this pre-processing technique, the fast camera data are analyzed. A method to identify the filaments in the pre-processed image is also discussed.
文摘榆全爪螨分布广泛。为落叶果树,尤以属于蔷薇科的重要害虫(van de vrie等,1972;Ehara,1973)。它的亲缘种柑桔全爪螨(Ehara,1984)同样广泛分布并为害多种植物。这两个种都有一些共同的宿主植物如日本梨树和桃树(Shinkaji,1961a)。而不属蔷薇科的桑树、三叶柑桔、萨摩柑桔和菜豆都是柑桔全爪螨的宿主植物(Ehara,1956 3 Shinkaji,
