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Summer Atmospheric Water Cycle under the Transition Influence of the Westerly and Summer Monsoon over the Yarlung Zangbo River Basin in the Southern Tibetan Plateau

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Advances in Atmospheric Sciences 2024年第5期41卷 830-846页

作者： Qianhui MA Chunyan ZHANG donghai WANG Zihao PANG School of Atmospheric Sciences Sun Yat-sen UniversityGuangdong Province Key Laboratory for Climate Change and Natural Disaster StudiesKey Laboratory of Tropical Atmosphere-Ocean SystemMinistry of EducationZhuhai 519082China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China Guangdong Meteorological Data Center Guangdong Meteorological ServiceGuangzhou 510080China National Observation and Research Station of Coastal Ecological Environments in Macao Macao Environmental Research InstituteMacao University of Science and TechnologyMacao SAR 999078China National Meteorological Information Center China Meteorological AdministrationBeijing 100081China

This study compares the summer atmospheric water cycle,including moisture sources and consumption,in the upstream,midstream,and downstream regions of the Yarlung Zangbo River Basin in the southern Tibetan *** evolutions of moisture properties under the influence of the westerly and summer southerly monsoon are examined using 5-yr multi-source measurements and ERA5 reanalysis *** that moisture consumption in this study is associated with clouds,precipitation,and diabatic *** to the midstream and downstream regions,the upstream region has less moisture,clouds,and precipitation,where the moisture is brought by the *** early August,the vertical wet advection over this region becomes enhanced and generates more high clouds and *** midstream region has moisture carried by the westerly in June and by the southerly monsoon from July to *** higher vertical wet advection maximum here forms more high clouds,with a precipitation peak in early *** downstream region is mainly affected by the southerly-driven wet *** rich moisture and strong vertical wet advection here produce the most clouds and precipitation among the three regions,with a precipitation peak in late *** height of the maximum moisture condensation is different between the midstream region(325 hPa)and the other two regions(375 hPa),due to the higher upward motion maximum in the midstream *** diabatic heating structures show that stratiform clouds dominate the upstream region,stratiform clouds and deep convection co-exist in the midstream region,and deep convection systems characterize the downstream region.

关键词： Yarlung Zangbo River Basin atmospheric water cycle constrained variational analysis moisture source and consumption

Ultrafast dynamics of femtosecond laser-induced high spatial frequency periodic structures on silicon surfaces

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Opto-Electronic Science 2024年第3期3卷 33-46页

作者： Ruozhong Han Yuchan Zhang Qilin Jiang Long Chen Kaiqiang Cao Shian Zhang donghai Feng Zhenrong sun Tianqing Jia State Key Laboratory of Precision Spectroscopy School of Physics and Electronic ScienceEast China Normal UniversityShanghai 200241China Institute of Laser Manufacturing Henan Academy of SciencesZhengzhou 450046China Institute of Physics Chinese Acadamy of SciencesBeijing 100190China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

Femtosecond laser-induced periodic surface structures(LIPSS)have been extensively studied over the past few *** particular,the period and groove width of high-spatial-frequency LIPSS(HSFL)is much smaller than the diffraction limit,making it a useful method for efficient ***,compared with the low-spatial-frequency LIPSS(LSFL),the structure size of the HSFL is smaller,and it is more easily ***,the formation mechanism of HSFL is complex and has always been a research hotspot in this *** this study,regular LSFL with a period of 760 nm was fabricated in advance on a silicon surface with two-beam interference using an 800 nm,50 fs femtosecond *** ultrafast dynamics of HSFL formation on the silicon surface of prefabricated LSFL under single femtosecond laser pulse irradiation were observed and analyzed for the first time using collinear pump-probe imaging *** general,the evolution of the surface structure undergoes five sequential stages:the LSFL begins to split,becomes uniform HSFL,degenerates into an irregular LSFL,undergoes secondary splitting into a weakly uniform HSFL,and evolves into an irregular LSFL or is *** results indicate that the local enhancement of the submerged nanocavity,or the nanoplasma,in the prefabricated LSFL ridge led to the splitting of the LSFL,and the thermodynamic effect drove the homogenization of the splitting LSFL,which evolved into HSFL.

关键词： laser-induced periodic surface structures(LIPSS) local field enhancement collinear pump-probe imaging silicon high spatial frequency periodic structures

Differences in Precipitation and Related Wind Dynamics and Moisture and Heat Features in Separate Areas of the South China Sea before and after Summer Monsoon Onset

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Advances in Atmospheric Sciences 2024年第8期41卷 1643-1660页

作者： Chunyan ZHANG donghai WANG Kaifeng ZHANG Wanwen HE Yanping ZHENG Yan XU Guangdong Meteorological Data Center Guangdong Meteorological BureauGuangzhou 510640China School of Atmospheric Sciences Sun Yat-sen UniversityGuangdong Province Key Laboratory for Climate Change and Natural Disaster StudiesKey Laboratory of Tropical Atmosphere-Ocean SystemMinistry of EducationZhuhai 519082China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China National Observation and Research Station of Coastal Ecological Environments in Macao Macao Environmental Research InstituteMacao University of Science and TechnologyMacao SAR 999078China Foshan Meteorological Service Foshan 528000China Ningjiang District Meteorological Bureau Songyuan 138000China

Using surface and balloon-sounding measurements, satellite retrievals, and ERA5 reanalysis during 2011–20, this study compares the precipitation and related wind dynamics, moisture and heat features in different areas of the South China Sea(SCS) before and after SCS summer monsoon onset(SCSSMO). The rainy sea around Dongsha(hereafter simply referred to as Dongsha) near the north coast, and the rainless sea around Xisha(hereafter simply referred to as Xisha) in the western SCS, are selected as two typical research subregions. It is found that Dongsha, rather than Xisha, has an earlier and greater increase in precipitation after SCSSMO under the combined effect of strong low-level southwesterly winds, coastal terrain blocking and lifting, and northern cold air. When the 950-h Pa southwesterly winds enhance and advance northward, accompanied by strengthened moisture flux, there is a strong convergence of wind and moisture in Dongsha due to a sudden deceleration and rear-end collision of wind by coastal terrain blocking. Moist and warm advection over Dongsha enhances early and deepens up to 200 h Pa in association with the strengthened upward motion after SCSSMO, thereby providing ample moisture and heat to form strong precipitation. However, when the 950-h Pa southwesterly winds weaken and retreat southward, Xisha is located in a wind-break area where strong convergence and upward motion centers move in. The vertical moistening and heating by advection in Xisha enhance later and appear far weaker compared to that in Dongsha, consistent with later and weaker precipitation.

关键词： Dongsha Xisha South China Sea summer monsoon onset precipitation wind dynamics moisture heat

Cold-Induced Reprogramming of Subcutaneous White Adipose Tissue Assessed by Single-Cell and Single-Nucleus RNA Sequencing

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Research 2024年第1期2023卷 763-778页

作者： Qing Liu Qiaoyun Long Jiayu Zhao Wenjie Wu Zexin Lin Wei sun Ping Gu Tuo Deng Kerry Martin Loomes donghai Wu Alice P.S.Kong Jingying Zhou Alfred S.Cheng Hannah Xiaoyan Hui School of Biomedical Sciences The Chinese University of Hong KongHong KongChina Department of Pharmacology and Pharmacy The University of Hong KongHong KongChina Guangzhou Institute of Biomedicine and Health Chinese Academy of SciencesGuangzhouChina China-New Zealand Joint Laboratory on Biomedicine and Health Chinese Academy of SciencesGuangzhouChina Department of Endocrinology Jinling HospitalNanjing UniversitySchool of MedicineNanjingChina National Clinical Research Center for Metabolic Diseases and Department of Metabolism and EndocrinologyThe Second Xiangya Hospital of Central South UniversityChangshaChina Key Laboratory of Diabetes Immunology Ministry of Educationand Metabolic Syndrome Research CenterThe Second Xiangya Hospital of Central South UniversityChangshaChina Clinical Immunology Center The Second Xiangya Hospital of Central South UniversityChangshaChina School of Biological Sciences and Maurice Wilkins Centre University of AucklandAucklandNew Zealand Department of Medicine and Therapeutics The Chinese University of Hong KongHong KongChina Hong Kong Institute of Diabetes and Obesity The Chinese University of Hong KongPrince of Wales HospitalShatinHong KongChina Li Ka Shing Institute of Health Sciences The Chinese University of Hong KongPrince of Wales HospitalShatinHong KongChina

Adipose browning has demonstrated therapeutic potentials in several ***,by conducting transcriptomic profiling at the single-cell and single-nucleus resolution,we reconstituted the cellular atlas in mouse inguinal subcutaneous white adipose tissue(iWAT)at thermoneutrality or chronic cold *** major nonimmune cells within the iWAT,including adipose stem and progenitor cells(ASPCs),mature adipocytes,endothelial cells,Schwann cells,and smooth muscle cells,were recovered,allowing us to uncover an overall and detailed blueprint for transcriptomes and intercellular cross-talks and the dynamics during white adipose tissue brown *** findings also unravel the existence of subpopulations in mature adipocytes,ASPCs,and endothelial cells,as well as new insights on their interconversion and reprogramming in response to *** adipocyte subpopulation competent of major histocompatibility complex class Ⅱ(MHCⅡ)antigen presentation is ***,a subcluster of ASPC with CD74 expression was identified as the precursor of this MHCⅡ^(+)*** adipocytes are transdifferented from preexisting lipid generating adipocytes,which exhibit developmental trajectory from de novo differentiation of amphiregulin cells(Aregs).Two distinct immune-like endothelial subpopulations are present in iWAT and are responsive to *** data reveal fundamental changes during cold-evoked adipose browning.

关键词： evoked programming generating

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黑龙江垦区水资源及其开发利用

水利规划与设计 2010年第5期 17-18,23页

作者：孙冬海黑龙江农垦勘测设计研究院哈尔滨150090

本文论述了黑龙江垦区水资源现状和开发利用水资源所存在的问题,并介绍了垦区水务局在实践中的具体解决方法。

关键词：黑龙江垦区水资源开发利用存在问题

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沉井工程施工技术及施工要点

水利规划与设计 2009年第2期 58-60页

作者：孙冬海黑龙江农垦勘测设计研究院哈尔滨150090

文中以佳木斯市发电有限公司2×300MW供热扩建工程为例,扼要概述沉井工程的施工过程,并就施工过程中可能出现的问题及相应措施加以总结。

关键词：沉井混凝土浇筑下沉倾斜纠偏封底

建筑施工企业人力资源管理现状与改革措施探讨

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市政技术 2014年第S1期32卷 193-194页

作者：孙东海济南城建集团有限公司山东济南250000

阐述了建筑施工企业人力资源管理的重要作用,论述了人力资源管理方面存在的问题,有针对性地提出了建筑施工企业人力资源管理的改革措施,供同行参考。

关键词：建筑施工企业人力资源管理改革

洪佳璇从活血化瘀论治儿童难治性哮喘经验举隅

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浙江中医杂志 2009年第1期44卷 10-11页

作者：孙东海洪佳璇浙江省杭州市萧山区中医院浙江杭州311201

业师洪佳璇主任中医师为杭州市名中医学术经验继承指导老师,从事中西医结合临床、教学、科研30余年.洪师勤求古训,借鉴新知,强调病证结合,重视辨证论治,立法融贯古今,用方不落窠臼,调度灵活,务重实效.现着重阐析洪师从活血化瘀论治儿童... 详细信息

业师洪佳璇主任中医师为杭州市名中医学术经验继承指导老师,从事中西医结合临床、教学、科研30余年.洪师勤求古训,借鉴新知,强调病证结合,重视辨证论治,立法融贯古今,用方不落窠臼,调度灵活,务重实效.现着重阐析洪师从活血化瘀论治儿童难治性哮喘的学术经验,以飨同道.

关键词：儿童难治性哮喘活血化瘀洪佳璇临床经验

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斜井射孔完井地层破裂压力三维有限元分析

石油钻探技术 2007年第1期35卷 13-15页

作者：曲占庆许江华王岩峰孙东海中国石油大学(华东)石油工程学院山东东营257062 南阳市新星工业技术咨询中心河南南阳473600 大庆石油管理局钻探集团黑龙江大庆163413

对于斜井射孔完井地层破裂压力的研究,国内外相对较少。在分析总结前人成果的基础上,提出了研究斜井射孔完井地层破裂压力的坐标变换方法,将几何复杂性转化为载荷复杂性,大幅度提高了有限元计算的效率;建立了考虑压裂液渗流影响的三维... 详细信息

对于斜井射孔完井地层破裂压力的研究,国内外相对较少。在分析总结前人成果的基础上,提出了研究斜井射孔完井地层破裂压力的坐标变换方法,将几何复杂性转化为载荷复杂性,大幅度提高了有限元计算的效率;建立了考虑压裂液渗流影响的三维弹塑性斜井射孔完井地层破裂压力分析模型。根据所建立的力学模型,分析了射孔条件、井斜角和方位角对于破裂压力的影响规律:射孔密度增加,破裂压力明显减小;方位角不同,破裂压力随着井斜角的变化规律不同。

关键词：定向井射孔完井破裂压力弹塑性耦合有限元法