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您的检索式：作者名="Huacheng Qiu"
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| 1 | High frequency AC electric glow discharge visualization technology and application in big diameter hypersonic low-density wind tunnel显示文摘In order to visualize the rarefied flow field in aΦ1m hypersonic low-density wind tunnel,an electric glow discharge technique based on high frequency excited power has been developed.Firstly,finite element simulation analysis has been carried out,and it is concluded that the breakdown voltage can be reduced by using high frequency power supply;then an electric glow discharge apparatus has been fabricated,and the discharge images were compared with simulations;besides,a clear flow field around HB-1 standard model has been observed using this technology;finally,the influence of glow discharge on the flow field,as well as the differences between direct current and high frequency electric glow discharges is discussed at the end of this paper. | Wanqiu Jiang Huacheng Qiu Yanguang Yang Yilei Shi Jie Wang Jie Li Zhengyi Long Chunman Mao | 2021 | Advances in Aerodynamics2021，3，1： | 1 |
| 2 | Fiber optic sensing technologies potentially applicable for hypersonic wind tunnel harsh environments显示文摘Advanced sensing techniques are in big demand for applications in hypersonic wind tunnel harsh environments,such as aero(thermo)dynamics measurements,thermal protection of aircraft structures,air-breathing propulsion,light-weighted and highstrength materials,etc.In comparison with traditional electromechanical or electronic sensors,the fiber optic sensors have relatively high potential to work in hypersonic wind tunnel,due to the capability of responding to a wide variety of parameters,high resolution,miniature size,high resistant to electromagnetic and radio frequency interferences,and multiplexing,and so on.This article has classified and summarized the research status and the representative achievement on the fiber optic sensing technologies,giving special attention to the summary of research status on the popular Fabry-Perot interferometric,fiber Bragg gratings and(quasi)distributed fiber optic sensors working in hypersonic wind tunnel environment,and discussed the current problems in special optical fiber sensing technologies.This article would be regarded as reference for the researchers in hypersonic wind tunnel experiment field. | Huacheng Qiu Fu Min Yanguang Yang | 2020 | Advances in Aerodynamics2020，2，1： | 0 |
| 3 | Oviposition Regularity of Hybrid Silkworm Stock Moth of Liangguang No. 2显示文摘To cure pebrine using dry- hot air treatment of silkworm eggs,and control egg age within 12 hours,oviposition regularity of hybrid silkworm stock moth of Liangguang No. 2—current production variety in Guangdong Province was investigated. The experiment showed that most hybrid stock female moths of Liangguang No. 2 at 25- 28℃ oviposited in the first 5 hours,and egg production declined sharply after 5 hours. 7·Xiang × Fu·9 achieved the oviposition peak within 1 hour after casting the moth,the oviposition amount within 5 hours accounted for 92. 94% of the total oviposition amount of female moth,that within 9 hours accounted for96. 47%. Fu·9 × 7·Xiang achieved the oviposition peak within 2- 4 hours after casting the moth,the oviposition amount within 5 hours accounted for 85. 21%of the total oviposition amount of female moth,that within 9 hours accounted for 92. 78%. Oviposition regularity of the hybrid silkworm stock moth of Liangguang No. 2 meets the need of dry-hot air treatment of silkworm pebrine-control egg age within 12 hours. | Zhong Suyuan Qiu Guoxiang Wang Xianyan Hu Zhiming Zhang Guiling Li Zheng Wen Ziwei Guo Dingguo Zhang Huacheng Sun Jingchen | 2015 | Animal Husbandry and Feed Science2015，7，2： | 0 |
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