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Frontogenesis and Frontolysis of a Cold Filament Driven by the Cross-Filament Wind and Wave Fields Simulated by a Large Eddy Simulation

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Advances in Atmospheric Sciences 2024年第3期41卷 509-528页

作者： Guojing li Dongxiao WANG Changming DONG Jiayi PAN yeqiang SHU Zhenqiu ZHANG State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Shool of Marine Sciences Nanjing University of Information Science and TechnologyNanjing 210044China School of Geography and Environment Jiangxi Normal UniversityNanchang 330022China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China

The variations of the frontogenetic trend of a cold filament induced by the cross-filament wind and wave fields are studied by a non-hydrostatic large eddy simulation. Five cases with different strengths of wind and wave fields are *** results show that the intense wind and wave fields further break the symmetries of submesoscale flow fields and suppress the levels of filament frontogenesis. The changes of secondary circulation directions—that is, the conversion between the convergence and divergence of the surface cross-filament currents with the downwelling and upwelling jets in the filament center—are associated with the inertial oscillation. The filament frontogenesis and frontolysis caused by the changes of secondary circulation directions may periodically sharpen and smooth the gradient of submesoscale flow *** lifecycle of the cold filament may include multiple stages of filament frontogenesis and frontolysis.

关键词： cold filament frontogenesis frontolysis large eddy simulation

Multi-agent mobile networking observation experiment at the air-sea interface of ocean eddy

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Science China Earth Sciences 2024年第10期67卷 3083-3097页

作者： Yi ZHANG Dongxiao WANG li ZHOU Chunhua QIU Yunfei ZHANG Zhiliang DENG Biao ZHANG Yunping liU yeqiang SHU Fenghua ZHOU Danian liU Zhengqiu ZHANG School of Marine Sciences Sun Yat-Sen UniversityZhuhai 519082China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China School of Marine Technology and Geomatics Jiangsu Ocean UniversityLianyungang 222005China Zhuhai Yunzhou Intelligent Technology Co. Ltd.Research and Design CenterZhuhai 519000China School of Automation Nanjing University of Information Science&TechnologyNanjing 210044China School of Marine Sciences Nanjing University of Information Science&TechnologyNanjing 210044China State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China

Current climate forecasting has advanced to the stage of investigating mesoscale air-sea interactions. Recent studies have identified significant structural differences between the cores and edges of mesoscale eddies;however, the effects of these structural variations on air-sea fluxes and the Marine Atmospheric Boundary Layer(MABL) remain underexplored. Traditional observations often fail to capture the detailed structures of eddies, necessitating enhanced observations at high spatiotemporal resolution for mesoscale eddies. To address this, efforts have been made to develop multi-agent platforms and expendable air-sea interface observation technologies. A task-oriented observation scheme was developed to monitor the spatial characteristics of mesoscale eddies. The South China Sea(SCS) is rich in mesoscale eddies with rapid motion changes, requiring enhanced observations of the air-sea interface using multi-agent mobile networking. An anticyclonic eddy was observed in the eastern region of the Xisha Islands in the SCS, and we examined variations in air-sea fluxes across different regions within the eddy.

关键词： Multi-agent Mobile networking Mesoscale eddy Air-sea interface Collaborative observation

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中美数字图书馆之比较研究

图书馆 2008年第4期 93-94,97页

作者：李叶强湖南怀化医学高等专科学校湖南怀化418000

近年来,数字图书馆的发展受到了世界各国的普遍重视。本文通过对中美数字图书馆发展情况的比较分析,提出我国数字图书馆建设应在借鉴美国数字图书馆建设的先进经验的基础上,结合我国的具体情况,建设具有中国特色的数字图书馆。

关键词：中关数字图书馆发展比较研究

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高速铁路接触网定位管固定方式优化研究

电气化铁道 2022年第4期33卷 38-43页

作者：李业强中国铁路设计集团有限公司

以接触网定位装置为研究对象,分析定位器受到的水平力、垂直力,重点研究曲线区段定位管吊线受力状态,并分析对其受力影响较大的关键参数,提出不同工况下的优化安装建议,为统一接触网定位装置的安装形式及腕臂和吊弦预配提供理论依据。

关键词：高速铁路曲线工况定位管吊线固定方式

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一、二次风机暖风器疏水改造可行性分析

锅炉制造 2013年第3期 26-27页

作者：李业强大唐七台河发电有限责任公司黑龙江七台河154600

东北地区在冬季时为防止一、二次风机入口空气温度过低,对空气预热器造成低温腐蚀,常常采用对入口空气预热的方式。其中采用蒸汽换热的方式较多,为保证加热后的风温和避免暖风器疏水结冰冻管,疏水温度一般控制较高,此项热源如不合理利... 详细信息

东北地区在冬季时为防止一、二次风机入口空气温度过低,对空气预热器造成低温腐蚀,常常采用对入口空气预热的方式。其中采用蒸汽换热的方式较多,为保证加热后的风温和避免暖风器疏水结冰冻管,疏水温度一般控制较高,此项热源如不合理利用将造成较大的经济损失。疏水热量再利用的选择方式,直接影响到机组经济性,如何更合理的利用余热对提高机组效率尤为重要。

关键词：暖风器疏水机组经济性疏水系统改造低温腐蚀

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现代设备管理的新趋势

上海煤气 2008年第6期 32-33,36页

作者：李业强上海天然气管网有限公司

文章结合现代机械制造、设备故障检测、可靠性工程以及现代管理科学的发展和信息化的时代要求,对设备管理的趋势进行了分析,在此基础上提出了设备管理科学化的发展方向。

关键词：信息管理效率设备管理

孟鲁司特钠联合氟替卡松治疗支气管哮喘患者有效率及其对肺功能影响分析

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数理医药学杂志 2020年第3期33卷 436-437页

作者：李业强河南省商丘市柘城县中西医结合医院

目的:分析孟鲁司特钠联合氟替卡松治疗支气管哮喘患者的临床疗效及其对肺功能影响。方法:将2015年5月~2018年5月间我院治疗的190例支气管哮喘患者随机分为治疗组和对照组。治疗组应用孟鲁司特钠联合氟替卡松治疗,对照组单独应用氟替卡... 详细信息

目的:分析孟鲁司特钠联合氟替卡松治疗支气管哮喘患者的临床疗效及其对肺功能影响。方法:将2015年5月~2018年5月间我院治疗的190例支气管哮喘患者随机分为治疗组和对照组。治疗组应用孟鲁司特钠联合氟替卡松治疗,对照组单独应用氟替卡松治疗,分析两组的疗效。结果:治疗组的总有效率、肺功能及生活质量均优于对照组,差异均具统计学意义(P<0.05)。结论:孟鲁司特钠联合氟替卡松治疗支气管哮喘患者的临床疗效显著。

关键词：孟鲁司特钠氟替卡松支气管哮喘

AlphaFold-guided redesign of a plant pectin methylesterase inhibitor for broad-spectrum disease resistance

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Molecular Plant 2024年第9期17卷 1344-1368页

作者： yeqiang Xia Guangzheng Sun Junhua Xiao Xinyi He Haibin Jiang Zhichao Zhang Qi Zhang Kainan li Sicong Zhang Xuechao Shi Zhaoyun Wang lin liu Yao Zhao Yuheng Yang Kaixuan Duan Wenwu Ye Yiming Wang Suomeng Dong Yan Wang Zhenchuan Ma Yuanchao Wang Department of Plant Pathology Nanjing Agricultural UniversityNanjingJiangsu 210095China Key Laboratory of Soybean Disease and Pest Control(Ministry of Agriculture and Rural Affairs) Nanjng Agricultural UniversityNanjngJiangsu 210095China Anhui Province Key Laboratory of Crop Integrated Pest Management Anhui Agricultural UniversityHefei 230036China School of Bioengineering Dalian University of TechnologyDalian 116024China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBejing 100193China These authors contributed equally to the article.

Plant cell walls are a critical site where plants and pathogens continuously struggle for physiological *** we show that dynamic remodeling of pectin methylesterification of plant cell walls is a compo-nent of the physiological and co-evolutionary struggles between hosts and pathogens.A pectin methyles-terase(PsPME1)secreted by Phytophthora sojae decreases the degree of pectin methylesterification,thus synergizing with an endo-polygalacturonase(PsPG1)to weaken plant cell *** counter PsPME1-mediated susceptibility,a plant-derived pectin methylesterase inhibitor protein,GmPMl1,protects pectin to maintain a high methylesterification ***1 protects plant cell walls from enzymatic degrada-tion by inhibiting both soybean and *** pectin methylesterases during ***,constitutive expression of GmPMl1 disrupted the trade-off between host growth and defense *** therefore used AlphaFold structure tools to design a modified form of GmPMI1(GmPMI1R)that specifically targets and inhibits pectin methylesterases secreted from pathogens but notfrom *** expression of GmPMi1R enhanced plant resistance to oomycete and fungal *** summary,our work highlights the biochemical modification of the cell wall as an important focal point in the physiological and co-evolutionary conflict between hosts and microbes,providing an important proof of concept that Al-driven structure-based tools can accelerate the development of new strategies for plant protection.

关键词： apoplastic immunity AlphaFold-guided redesign broad-spectrum disease resistance pectin methyl-esteraseinhibitor cell wall

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关于锅炉吹灰汽源改造的探讨研究

锅炉制造 2012年第4期 21-22页

作者：姜雪李业强哈尔滨锅炉厂有限责任公司黑龙江哈尔滨150046 大唐七台河发电有限责任公司黑龙江七台河154600

大型锅炉吹灰汽源绝大部分采用高品质蒸汽,相对降低机组效率。本文为探索更好的节能方式,减少机组高品质蒸汽的损耗,改善机组蒸汽利用率,寻找吹灰新汽源进行简要分析和探讨。

关键词：吹灰汽源机组经济性汽源改造