A new species, Drabescoides umbonata sp. nov., of the leafhopper genus Drabescoides Kwon & Lee is described and figured from China. A key separating the new species from the two other species of the genus, Drabesc...A new species, Drabescoides umbonata sp. nov., of the leafhopper genus Drabescoides Kwon & Lee is described and figured from China. A key separating the new species from the two other species of the genus, Drabescoides nucahlis Jacobi and Dra-bescoides undomarginata Cen & Cai, is given together with new records for the latter two species and figures of undomarginata. The type specimen of the new species is kept in the collection of the Entomological Museum, Northwest Sci-Tech University of Agriculture and Forestry (NWSUAF).展开更多
Two new leafhopper species from Sabah (Borneo) of the genus Fistulatus are dealt with in this paper. Both type specimens are deposited in the National Museum of Wales, Cardiff, UK.
The following new species of the leafhopper genus Drabescus Stl are described from China: D. jinxiuensis , sp.nov., D. lii , sp.nov. and D. lamellatus sp.nov. A check list to the 16 Chinese species i...The following new species of the leafhopper genus Drabescus Stl are described from China: D. jinxiuensis , sp.nov., D. lii , sp.nov. and D. lamellatus sp.nov. A check list to the 16 Chinese species is given. The type specimens are kept in the collection of the Entomological Museum, Northwest Sci Tech University of Agriculture and Forestry (NWSUAF), the collection of th e Institute of Zoology of Academia Sinica in Beijing, China(IZAS), the Natural H istory Museum in London, U.K. (BMNH) and the National Museum of Natural History, Washington (USNM) respectively.展开更多
The fabrication of Bragg gratings on silicon-on-insulator （SOI） rib waveguides using electron-beam lithography is presented. The grating waveguide is optimally designed for actual photonic integration. Experimental ...The fabrication of Bragg gratings on silicon-on-insulator （SOI） rib waveguides using electron-beam lithography is presented. The grating waveguide is optimally designed for actual photonic integration. Experimental and theoretical evaluations of the Bragg grating are demonstrated. By thinning the SOl device layer and deeply etching the Bragg grating, a large grating coupling coefficient of 30cm^-1 is obtained.展开更多
基金This study is supported by China Postdoctoral Science Foundation (2004035509), the National Science Foundation of China (30370180) and the Special Research Foundation for Doctorate Academic in Institution of Higher Learning, China (20030712015)
基金the Fok Ying Tung Education Foundation,National Educational Committee of China
文摘A new species, Drabescoides umbonata sp. nov., of the leafhopper genus Drabescoides Kwon & Lee is described and figured from China. A key separating the new species from the two other species of the genus, Drabescoides nucahlis Jacobi and Dra-bescoides undomarginata Cen & Cai, is given together with new records for the latter two species and figures of undomarginata. The type specimen of the new species is kept in the collection of the Entomological Museum, Northwest Sci-Tech University of Agriculture and Forestry (NWSUAF).
基金The project was supported by"the Fok Ying Tung Education FoundationNa-tional Educational Committee of China"
文摘Two new leafhopper species from Sabah (Borneo) of the genus Fistulatus are dealt with in this paper. Both type specimens are deposited in the National Museum of Wales, Cardiff, UK.
基金The Project was supported by"the Excellent Young Teacher Foundation of theNational Educational Department of China"
文摘The following new species of the leafhopper genus Drabescus Stl are described from China: D. jinxiuensis , sp.nov., D. lii , sp.nov. and D. lamellatus sp.nov. A check list to the 16 Chinese species is given. The type specimens are kept in the collection of the Entomological Museum, Northwest Sci Tech University of Agriculture and Forestry (NWSUAF), the collection of th e Institute of Zoology of Academia Sinica in Beijing, China(IZAS), the Natural H istory Museum in London, U.K. (BMNH) and the National Museum of Natural History, Washington (USNM) respectively.
文摘The fabrication of Bragg gratings on silicon-on-insulator （SOI） rib waveguides using electron-beam lithography is presented. The grating waveguide is optimally designed for actual photonic integration. Experimental and theoretical evaluations of the Bragg grating are demonstrated. By thinning the SOl device layer and deeply etching the Bragg grating, a large grating coupling coefficient of 30cm^-1 is obtained.
