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Study on correlation of thermal model to in-orbit data for infrared optical payloads on FY-3E/HIRAS-Ⅱ
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作者 LI Yu-Han YANG Bao-Yu +4 位作者 ZHANG Qiang GUO Zhi-Peng WU Yi-Nong TANG Xiao LI Shang-Ju 《红外与毫米波学报》 北大核心 2025年第3期394-405,共12页
The Infrared Hyperspectral Atmospheric SounderⅡ(HIRAS-Ⅱ)is the key equipment on FengYun-3E(FY-3E)satellite,which can realize vertical atmospheric detection,featuring hyper spectral,high sensitivity and high precisio... The Infrared Hyperspectral Atmospheric SounderⅡ(HIRAS-Ⅱ)is the key equipment on FengYun-3E(FY-3E)satellite,which can realize vertical atmospheric detection,featuring hyper spectral,high sensitivity and high precision.To ensure its accuracy of detection,it is necessary to correlate their thermal models to in-orbit da⁃ta.In this work,an investigation of intelligent correlation method named Intelligent Correlation Platform for Ther⁃mal Model(ICP-TM)was established,the advanced Kriging surrogate model and efficient adaptive region opti⁃mization algorithm were introduced.After the correlation with this method for FY-3E/HIRAS-Ⅱ,the results indi⁃cate that compared with the data in orbit,the error of the thermal model has decreased from 5 K to within±1 K in cold case(10℃).Then,the correlated model is validated in hot case(20℃),and the correlated model exhibits good universality.This correlation precision is also much superiors to the general ones like 3 K in other similar lit⁃erature.Furthermore,the process is finished in 8 days using ICP-TM,the efficiency is much better than 3 months based on manual.The results show that the proposed approach significantly enhances the accuracy and efficiency of thermal model,this contributes to the precise thermal control of subsequent infrared optical payloads. 展开更多
关键词 thermal model intelligent correlation method surrogate model infrared optical payload FY-3E
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Cosmic Ray-driven Bioenergetics for Life in Molecular Clouds
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作者 FENG Lei 《天文学报》 CAS CSCD 北大核心 2024年第6期26-31,共6页
According to models such as panspermia or the Nebula-Relay hypothesis,the ancestors of life on Earth once lived in molecular clouds.Then what are the energy source and bioenergetics for such lifeforms?A new bioenerget... According to models such as panspermia or the Nebula-Relay hypothesis,the ancestors of life on Earth once lived in molecular clouds.Then what are the energy source and bioenergetics for such lifeforms?A new bioenergetic mechanism powered by cosmic ray ionization of hydrogen molecules is proposed and its relation with the origin of chemiosmosis is also discussed in this paper.Based on this mechanism,the Last Universal Common Ancestor may be a type of lifeform that utilizes hydrogen molecules as donors of electron transport chains. 展开更多
关键词 ASTROBIOLOGY ASTROCHEMISTRY interstellar medium(ISM) NEBULAE cosmic ray
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文艺副刊与马华地志散文之兴起 被引量:1
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作者 林春美 《暨南学报(哲学社会科学版)》 CSSCI 北大核心 2010年第6期79-86,共8页
马华地志散文之兴起,与本地文艺副刊大有关系。90年代初期综合文艺副刊《星云》所策划的"大马风情话"与"南北大道"两个系列的文章,促使马来西亚(以马来半岛为主)由南至北许多大城小镇、甚至一些之前罕为人知的小地... 马华地志散文之兴起,与本地文艺副刊大有关系。90年代初期综合文艺副刊《星云》所策划的"大马风情话"与"南北大道"两个系列的文章,促使马来西亚(以马来半岛为主)由南至北许多大城小镇、甚至一些之前罕为人知的小地方,集体浮现出马华文学的地表。其以主文形式处理这些地志散文的编辑方式,提高了"地方"的能见度。90年代初的这场地方书写活动,以文学建构地方,以书写赋空间以意义。其突出的成果,在某个程度上,也许,牵动了21世纪蓬勃的马华地方书写的活动与发展。 展开更多
关键词 马华文艺副刊 《星云》 地志散文 地方感 地方景观
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