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Impact of Assimilation of FY-4A GIIRS Three-Dimensional Horizontal Wind Observations on Typhoon Forecasts

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ADVANCES IN ATMOSPHERIC SCIENCES 2025年第3期42卷 467-485页

作者： Wang, Hao han, wei Li, Jun Chen, Hao Yin, Ruoying China Meteorol Adm CMA Earth Syst Modeling & Predict Ctr CEMC Beijing 100081 Peoples R China Chinese Acad Meteorol Sci State Key Lab Severe Weather LaSW China Meteorol Adm Beijing 100081 Peoples R China China Meteorol Adm Natl Satellite Meteorol Ctr FYSIC Beijing 100081 Peoples R China Jiangsu Meteorol Observ Nanjing 210008 Peoples R China China Meteorol Adm Key Lab Transportat Meteorol Nanjing 210008 Peoples R China

Measurements from a hyperspectral infrared (HIR) sounder onboard a satellite in geostationary orbit not only provide atmospheric thermodynamic information, but also can be used to infer dynamic information with high temporal resolution. Radiance measurements from the Geostationary Interferometric Infrared Sounder (GIIRS), obtained with 15-min temporal resolution during Typhoon Maria (2018) and 30-min temporal resolution during Typhoon Lekima (2019), were used to derive three-dimensional (3D) horizontal winds by tracking the motion of atmospheric moisture. This work focused on the impact of assimilation of 3D winds on typhoon analyses and forecasts using the operational NWP model of the China Meteorological Administration (CMA-MESO), and improved understanding of the potential benefits of assimilating dynamic information from geostationary sounder data with higher temporal resolution. The standard deviation of the observations minus simulations revealed that the accuracy of the derived 3D winds with 15-min resolution was higher than that of derived winds with 30-min resolution. Experiments showed that the assimilation system can effectively absorb the information of the derived 3D winds, and that dynamic information from clear-sky areas can be transferred to typhoon areas. In typhoon prediction, assimilation of the derived 3D winds had greatest influence on the typhoon track, and less influence on the maximum wind speed. Assimilation of the derived 3D winds reduced the average track error by 17.4% for Typhoon Maria (2018) and by 3.5% for Typhoon Lekima (2019) during their entire 36-h forecasts initiated at different times. Assimilation of GIIRS dynamic information can substantially improve forecasts of heavy precipitation by CMA-MESO. Results indicate that the assimilation of dynamic information from high-temporal-resolution geostationary HIR sounder data adds value for improved numerical weather prediction. (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic

关键词： GIIRS 3D horizontal winds typhoon CMA-MESO (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic) (sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)

Impact of Assimilation of FY-4A GIIRS Three-Dimensional Horizontal Wind Observations on Typhoon Forecasts

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Advances in Atmospheric Sciences 2025年第03期 467-485页

作者： Hao WANG wei han Jun LI Hao CHEN Ruoying YIN CMA Earth System Modeling and Prediction Center (CEMC) China Meteorological Administration State Key Laboratory of Severe Weather (LaSW) Chinese Academy of Meteorological SciencesChina Meteorological Administration FYSIC National Satellite Meteorological CenterChina Meteorological Administration Jiangsu Meteorological Observatory Key Laboratory of Transportation Meteorology China Meteorological Administration

Measurements from a hyperspectral infrared(HIR) sounder onboard a satellite in geostationary orbit not only provide atmospheric thermodynamic information, but also can be used to infer dynamic information with high temporal *** measurements from the Geostationary Interferometric Infrared Sounder(GIIRS), obtained with 15-min temporal resolution during Typhoon Maria(2018) and 30-min temporal resolution during Typhoon Lekima(2019), were used to derive three-dimensional(3D) horizontal winds by tracking the motion of atmospheric moisture. This work focused on the impact of assimilation of 3D winds on typhoon analyses and forecasts using the operational NWP model of the China Meteorological Administration(CMA-MESO), and improved understanding of the potential benefits of assimilating dynamic information from geostationary sounder data with higher temporal resolution. The standard deviation of the observations minus simulations revealed that the accuracy of the derived 3D winds with 15-min resolution was higher than that of derived winds with 30-min resolution. Experiments showed that the assimilation system can effectively absorb the information of the derived 3D winds, and that dynamic information from clear-sky areas can be transferred to typhoon areas. In typhoon prediction, assimilation of the derived 3D winds had greatest influence on the typhoon track, and less influence on the maximum wind speed. Assimilation of the derived 3D winds reduced the average track error by 17.4% for Typhoon Maria(2018) and by 3.5% for Typhoon Lekima(2019) during their entire 36-h forecasts initiated at different times. Assimilation of GIIRS dynamic information can substantially improve forecasts of heavy precipitation by CMAMESO. Results indicate that the assimilation of dynamic information from high-temporal-resolution geostationary HIR sounder data adds value for improved numerical weather prediction.

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DTD1 modulates synaptic efficacy by maintaining D-serine and D-aspartate homeostasis

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Science China(Life Sciences) 2025年第2期68卷 467-483页

作者： Xiao Liu Chaojuan Yang Zhuoran Lin Jianing Li Bin Yin Xuepei Lei wei han Boqin Qiang Pengcheng Shu Chen Zhang Xiaozhong Peng State KeyLaboratoryofCommon Mechanism Research for Major Diseases Departmentof Biochemistry&Molecular BiologyMedicalPrimate Research CenterNeuroscienceCenterInstituteof Basic Medical Sciences Chinese Academy of Medical SciencesSchool of Basic Medicine Peking Union Medical CollegeBeijing 100005China State Key Laboratory of Respiratory Health and Multimorbidity Beijing 100005China Institute of Laboratory Animal Sciences Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100021China School of Basic Medical Sciences Beijing Key Laboratory of Neural Regeneration and RepairCapital Medical UniversityBeijing 100069China Key Laboratoryof Biomechanics and Mechanobiology(Beihang University) Ministryof EducationBeijing AdvancedInnovation Center for Biomedical EngineeringSchoolof Engineering MedicineBeihang UniversityBeijing 100191China Chinese Institute for Brain Research Beijing 102206China

D-serine and D-aspartate are involved in N-methyl-D-aspartate receptor(NMDAR)-related physiological and pathological ***-t RNA deacylase 1(DTD1)may biochemically contribute to D-serine or D-aspartate ***,it is unclear thus far whether DTD1 regulates D-serine or D-aspartate content in neurobiological *** the present research,we found that DTD1 was essential to maintain the D-serine or D-aspartate homeostasis,which was consistent with the phenomenon that DTD1-deficiency resulted in changes in the quantity changes of functional NMDAR subunits in postsynaptic ***,DTD1 played a considerable role in regulating dendritic morphology and synaptic *** a consequence,DTD1 affected neurobiological events,including the synaptic strength of the CA3-to-CA1 circuit,dendritic spine density of hippocampal pyramidal neurons,and behavioral performance of mice in the Morris water *** findings highlight the important role of DTD1 in synaptic transmission,neuronal morphology,and spatial learning and memory and suggest an undisclosed mechanism of DTD1 that participates the regulation of D-serine or D-aspartate homeostasis in hippocampal neurons.

关键词： D-aminoacyl-tRNA deacylase 1 D-serine D-aspartate synaptic transmission neuronal morphology spatial learning and memory

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新时代高校美育的目标定位及实践策略

黑龙江高教研究 2025年第2期43卷 23-28页

作者：韩伟黑龙江大学黑龙江哈尔滨150080

新时代高校美育担负着重要的历史使命,其对全民审美素养的提升具有引领作用。高校美育除了具备审美教育的一般特性,还具有道德涵养属性,其目标在于道德养成。相较于社会美育和中小学美育,高校美育的示范性、体系性、可持续性更强,其可... 详细信息

新时代高校美育担负着重要的历史使命,其对全民审美素养的提升具有引领作用。高校美育除了具备审美教育的一般特性,还具有道德涵养属性,其目标在于道德养成。相较于社会美育和中小学美育,高校美育的示范性、体系性、可持续性更强,其可以扭转当代教育“感性缺失”状况,这构成了高校美育道德养成的人性保障。在高校美育的实施策略上,以“浸润”为总原则,依托公共艺术类课程、中华优秀传统文化和诗性思维,培养通识审美、担当情怀以及愉悦追求,为全社会审美素养提升和创新意识养成提供支持。

关键词：新时代高校美育道德感性美育浸润

Computed tomography enterography-based radiomics for assessing mucosal healing in patients with small bowel Crohn's disease

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World Journal of Gastroenterology 2025年第3期31卷 62-72页

作者： Hao Ding Yuan-Yuan Fang Wen-Jie Fan Chen-Yu Zhang Shao-Fei Wang Jing Hu wei han Qiao Mei Department of Gastroenterology The First Affiliated Hospital of Anhui Medical UniversityHefei 230022Anhui ProvinceChina Department of Radiation Oncology The First Affiliated Hospital of Anhui Medical UniversityHefei 230022Anhui ProvinceChina Department of Gastroenterology Suzhou First People's HospitalSuzhou 234099Anhui ProvinceChina

BACKGROUND Mucosal healing(MH)is the major therapeutic target for Crohn's disease(CD).As the most commonly involved intestinal segment,small bowel(SB)assessment is crucial for CD ***,it poses a significant challenge due to its limited accessibility through conventional endoscopic *** To establish a noninvasive radiomic model based on computed tomography enterography(CTE)for MH assessment in SBCD *** Seventy-three patients diagnosed with SBCD were included and divided into a training cohort(n=55)and a test cohort(n=18).Radiomic features were obtained from CTE images to establish a radiomic *** demographics were analysed to establish a clinical model.A radiomic-clinical nomogram was constructed by combining significant clinical and radiomic *** diagnostic efficacy and clinical benefit were evaluated via receiver operating characteristic(ROC)curve analysis and decision curve analysis(DCA),*** Of the 73 patients enrolled,25 patients achieved *** radiomic-clinical nomogram had an area under the ROC curve of 0.961(95%confidence interval:0.886-1.000)in the training cohort and 0.958(0.877-1.000)in the test cohort and provided superior clinical benefit to either the clinical or radiomic models alone,as demonstrated by *** These results indicate that the CTE-based radiomic-clinical nomogram is a promising imaging biomarker for MH and serves as a potential noninvasive alternative to enteroscopy for MH assessment in SBCD patients.

关键词： Crohn’s disease Computed tomography enterography Mucosal healing Nomogram Radiomics

Targeted sounding observations from geostationary satellite and impacts on high impact weather forecasts

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Science China Earth Sciences 2025年

作者： wei han Ruoying YIN Jun LI Yongzhu LIU Jincheng WANG Yonghui LI Xiaohao QIN Zhiqing ZhanG Xueshun SHEN CMA Earth System Modeling and Prediction Centre (CEMC) State Key Laboratory of Severe Weather (LaSW) National Satellite Meteorological Center State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of Sciences University of Chinese Academy of Sciences

In monitoring and predicting high-impact weather(HIW) events, targeted atmospheric temperature and moisture sounding observations in sensitive areas are more valuable than conventional observations. The conditional nonlinear optimal perturbation(CNOP) method and the linear singular vector(SV) method can be employed to identify these weather-sensitive areas for targeted observations. Such observations can be conducted by using hyperspectral infrared sounders onboard geostationary weather satellites. The Geostationary Interferometric Infrared Sounder(GIIRS) onboard China's Fengyun(FY)-4geostationary satellite series can provide atmospheric sounding observations with a temporal resolution of up to 15 min over areas prone to active weather events. GIIRS offers unprecedented opportunities for targeted observations, enabling flexible measurement modes that focus on weather-sensitive areas. High-temporal-resolution measurements not only reveal the threedimensional(3D) thermodynamic structure of the atmosphere, but also track moisture characteristics to capture the 3D dynamic structure. Moreover, high-temporal-resolution measurements of clear radiances can enhance atmospheric sounding retrievals(used for HIW situation awareness) and data assimilation(used to improve numerical weather prediction). The four-dimensional variational(4D-Var) system facilitates the utilization of the high-temporal-resolution GIIRS targeted observations. In this study,we explore the applications of FY-4A and FY-4B GIIRS targeted observations and focus on data assimilation based on the 4DVar system for improving HIW forecasts. Several typhoon cases are selected for impact analysis. Moreover, we compare CNOP and SV methods for identifying sensitive areas, and use the 4D-Var assimilation system of the Global Assimilation Forecasting System of the China Meteorological Administration(CMA-GFS) for real-time data assimilation. The results indicate hightemporal-resolution observations positively impact ty

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Recycling technologies of spent lithium-ion batteries and future directions:A review

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中国有色金属学报 2025年第1期35卷 271-295页

作者： Xue-song GAO Meng WU Guang-jin ZHAO Kun-hong GU Jia-jia WU Hong-bo ZENG Wen-qing QIN Jun-wei han School of Minerals Processing&Bioengineering Central South UniversityChangsha 410083China Department of Chemical and Materials Engineering University of AlbertaEdmonton T6G 1H9Canada Electric Power Research Institute Henan Electric Power CompanySTATE GRID Corporation of ChinaZhengzhou 450052China

Lithium-ion batteries(LIBs)are the most popular energy storage devices due to their high energy density,high operating voltage,and long cycle ***,green and effective recycling methods are needed because LIBs contain heavy metals such as Co,Ni,and Mn and organic compounds inside,which seriously threaten human health and the *** this work,we review the current status of spent LIB recycling,discuss the traditional pyrometallurgical and hydrometallurgical recovery processes,and summarize the existing short-process recovery technologies such as salt-assisted roasting,flotation processes,and direct ***,we analyze the problems and potential research prospects of the current recycling process,and point out that the multidisciplinary integration of recycling will become the mainstream technology for the development of spent LIBs.

关键词： spent lithium battery short-process recycling secondary resources pretreatment metal recovery

延伸·建构·承载:地理批评中的文学空间与现实空间

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西北大学学报(哲学社会科学版) 2025年第1期55卷 142-150页

作者：韩伟吴甜西北师范大学文学院甘肃兰州730070

贝尔唐·韦斯特法尔(Bertrand Westphal)作为当代西方地理批评理论体系的创始者,他所提出的地理批评作为空间研究的一种新的动态批评理论,不仅使文学与地理学的联结成为事实,拓展了文学空间研究的新方式,为现实空间的重新建构提供了可能... 详细信息

贝尔唐·韦斯特法尔(Bertrand Westphal)作为当代西方地理批评理论体系的创始者,他所提出的地理批评作为空间研究的一种新的动态批评理论,不仅使文学与地理学的联结成为事实,拓展了文学空间研究的新方式,为现实空间的重新建构提供了可能,而且在一定程度上缓减了后现代语境下空间的裂变与重组所造成的现代性危机,在以地方为研究对象的过程中产生出关于地方的新景观,完成了作为主体的“地方”在地理空间与意义空间方面的新建构。本文主要通过景观隐喻的视角,结合真实与虚构、去地域化与再地域化以及文学地图转向三个层面来重新阐释地方重构的内在逻辑,以此完成对地方身份的想象、建构与认同。

关键词：贝尔唐·韦斯特法尔地理批评文学空间现实空间

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基于CodeBERT和Stacking集成学习的补丁正确性验证方法

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计算机科学 2025年第1期52卷 250-258页

作者：韩威姜淑娟周伟中国矿业大学计算机科学与技术学院江苏徐州221116 中国矿业大学矿山数字化教育部工程研究中心江苏徐州221116

近年来,自动程序修复已成为软件工程领域的重要研究课题。然而,现有的自动修复技术大多是基于补丁生成和测试的,在补丁验证环节时间成本很高。此外,由于测试套件的不完备,许多候选补丁虽然能通过测试,但实际上并不正确,从而导致补丁过... 详细信息

近年来,自动程序修复已成为软件工程领域的重要研究课题。然而,现有的自动修复技术大多是基于补丁生成和测试的,在补丁验证环节时间成本很高。此外,由于测试套件的不完备,许多候选补丁虽然能通过测试,但实际上并不正确,从而导致补丁过拟合。为提高补丁验证的效率并缓解补丁过拟合的问题,提出了一种静态的补丁验证方法。该方法首先使用大型预训练模型CodeBERT自动提取缺陷代码片段和补丁代码片段的语义特征,然后使用历史缺陷修复补丁数据训练Stacking集成学习模型,训练之后的模型可以对新的缺陷修复补丁进行有效验证。在Defects4J缺陷数据集相关的1 000个补丁数据上对所提方法的验证能力进行评估。实验结果表明,该方法可以有效地验证补丁的正确性,从而提高补丁验证的效率。

关键词：自动程序修复补丁验证预训练模型集成学习 Defects4J缺陷数据集