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4篇 您的检索式:作者名="TAO ShiCheng"
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1An ice-core record of vegetation and climate changes in the central Tibetan Plateau during the last 550 years显示文摘We present a 550-year ice-core pollen record with a 5-year resolution from the Puruogangri ice field in the central Tibetan Plateau.Analysis of the relationship between pollen record and instrumental observations suggests that the sum of the steppe and meadow pollen taxa is a good indicator of summer (June-August) temperature,whereas the ratios of Cyperaceae/(Gramineae+Artemisia) [Cy/(G+A)] as well as M/S (meadow to steppe percentages) are indicative of humidity changes in this region.Together with δ18O and glacial accumulation records,the response of vegetation to climate change over the past 500 years was revealed.Desert vegetation dominated during 1450-1640 AD,a time period characterized by cold-wet climate,while steppe vegetation expanded during 1640-1915 when warm-dry climate prevailed.Afterwards,during a cold and humid period,desert vegetation expanded again.Since 1980-2002,due to the increase of summer temperatures,steppe and meadow vegetation predominates,while areas with desert vegetation are reduced.This proxy series is the first high-resolution ice-core pollen record spanning the last 550 years for the central Tibetan Plateau.YANG Bao TANG LingYu LI ChunHai SHAO YaJun TAO ShiCheng YANG LunQing 2010Chinese Science Bulletin2010,55,12:4
2Reactive Inorganic Vapor Deposition of Perovskite Oxynitride Films for Solar Energy Conversion显示文摘The synthesis of perovskite oxynitrides,which are promising photoanode candidates for solar energy conversion,is normally accomplished by high-temperature ammonolysis of oxides and carbonate precursors,thus making the deposition of their planar films onto conductive substrates challenging.Here,we proposed a facile strategy to prepare a series of perovskite oxynitride films.Taking SrTaO_(2)N as a prototype,we prepared SrTaO_(2)N films on Ta foils under NH_(3) flow by utilizing the vaporized SrCl_(2)/SrCO_(3) eutectic salt.The SrTaO_(2)N films exhibit solar water-splitting photocurrents of 3.0 mA cm^(-2) at 1.23 V vs.RHE(reversible hydrogen electrode),which increases by 270%compared to the highest photocurrent(1.1 mA cm^(-2) at 1.23 V vs.RHE)of SrTaO_(2)N reported in the literature.This strategy may also be applied to directly prepare a series of perovskite oxynitride films on conductive substrates such as ATaO_(2)N(A=Ca,Ba)and ANbO_(2)N(A=Sr,Ba).Tao Fang Huiting Huang Jianyong Feng Yingfei Hu Qinfeng Qian Shicheng Yan Zhentao Yu Zhaosheng Li Zhigang Zou 2019Research2019,,1:2
3Elements doping to expand the light response of SrTiO 3显示文摘He Yu Jiajia Wang Shicheng Yan Tao Yu Zhigang Zou 2014Journal of Photochemistry & Photobiology, A: Chemistry2014,,:1
4Capurability analysis for arbitrarily high-speed maneuvering targets显示文摘The capturability of an arbitrarily maneuvering target featuring speed superiority over an interceptor is analyzed for Augmented Pure Proportional Navigation(APPN)and RetroAugmented Proportional Navigation(RAPN)guidance.This paper focuses on intercepting arbitrary maneuvers to study more general interception problems.A comparative analysis of the capture region between head-on interception related to APPN and head-pursuit interception related to RAPN is proposed.The results indicate that RAPN performs better than APPN in capturability.It is concluded that increasing the target velocity,which increases the velocity ratio,significantly weakens the capturability of the interceptor,and the average acceleration and relative distance affect the location of the capture region but not its size.The analysis is based on prior knowledge of the target maneuver,which inevitably leads to deviations from actual maneuvers in practical engagement,so a deviation analysis is implemented.The effective capture region shrinks as the absolute value of acceleration deviation increases,and the RAPN has a better deviation fault tolerance compared with the APPN.The results reveal that a larger relative distance can weaken the deviation fault tolerance,and the target velocity has opposite effects on head-on and head-pursuit interception.Shaobo WANG Yang GUO Shicheng WANG Lixin WANG Yanhua TAO Zhengfei PENG 2023Chinese Journal of Aeronautics2023,36,10:0
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