A new species in the subgenus Simulium Latreille s. str. in the genus Simulium is described and illustrated. Simulium（Simulium） sanyaense sp. nov. is from the Sanya District on Hainan Island China. This new species ...A new species in the subgenus Simulium Latreille s. str. in the genus Simulium is described and illustrated. Simulium（Simulium） sanyaense sp. nov. is from the Sanya District on Hainan Island China. This new species is assigned to the tuberosum-group of the subgenus Simulium and is closely related to Simulium（S.） nitidithorax Puri（1932）, Simulium（S.） brevipar Takaoka and Davies（1995）, Simulium（S.） tianchi Chen, Zhang and Yang（2003）, and Simulium（S.） sigiti Takaoka and Hadi（1991）. However, it is differentiated from them by the genital plate, the enlarged sensory vesicle and the shape of cibarium in the female, and the pupal gill lacking a pit-like cuticular organ.展开更多
Volume diffuse dielectric barrier discharge （DBD） plasma is produced in subsonic airflow by nanosecond high-voltage pulse power supply with a plate-to-plate discharge cell at 6 mm air gap length. The discharge image...Volume diffuse dielectric barrier discharge （DBD） plasma is produced in subsonic airflow by nanosecond high-voltage pulse power supply with a plate-to-plate discharge cell at 6 mm air gap length. The discharge images, optical emission spectra （OES）, the applied voltage and current waveforms of the discharge at the changed airflow rates are obtained. When airflow rate is increased, the transition of the discharge mode and the variations of discharge intensity, breakdown characteristics and the temperature of the discharge plasma are investigated. The results show that the discharge becomes more diffuse, discharge intensity is decreased accompanied by the increased breakdown voltage and time lag, and the temperature of the discharge plasma reduces when airflow of small velocity is introduced into the discharge gap. These phenomena are because that the airflow changes the spatial distribution of the heat and the space charge in the discharge gap.展开更多
基金supported by the Provincial Natural Science Foundation of Anhui(1408085MH193)the National Undergraduate Training Programs for Innovation and Entrepreneurship(201510361099)
文摘A new species in the subgenus Simulium Latreille s. str. in the genus Simulium is described and illustrated. Simulium（Simulium） sanyaense sp. nov. is from the Sanya District on Hainan Island China. This new species is assigned to the tuberosum-group of the subgenus Simulium and is closely related to Simulium（S.） nitidithorax Puri（1932）, Simulium（S.） brevipar Takaoka and Davies（1995）, Simulium（S.） tianchi Chen, Zhang and Yang（2003）, and Simulium（S.） sigiti Takaoka and Hadi（1991）. However, it is differentiated from them by the genital plate, the enlarged sensory vesicle and the shape of cibarium in the female, and the pupal gill lacking a pit-like cuticular organ.
基金supported by National Natural Science Foundation of China(No.51437002)
文摘Volume diffuse dielectric barrier discharge （DBD） plasma is produced in subsonic airflow by nanosecond high-voltage pulse power supply with a plate-to-plate discharge cell at 6 mm air gap length. The discharge images, optical emission spectra （OES）, the applied voltage and current waveforms of the discharge at the changed airflow rates are obtained. When airflow rate is increased, the transition of the discharge mode and the variations of discharge intensity, breakdown characteristics and the temperature of the discharge plasma are investigated. The results show that the discharge becomes more diffuse, discharge intensity is decreased accompanied by the increased breakdown voltage and time lag, and the temperature of the discharge plasma reduces when airflow of small velocity is introduced into the discharge gap. These phenomena are because that the airflow changes the spatial distribution of the heat and the space charge in the discharge gap.
