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Three-dimensional thermohaline structure estimation derived from HY-2 satellite data over the Maritime Silk Road and its applications

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Acta Oceanologica Sinica 2024年第5期43卷 41-53页

作者： zhiqiang chen Xidong Wang Xiangyu Wu Yuan Cao Zikang He Dakui Wang Jian chen Key Laboratory of Marine Hazards Forecasting Ministry of Natural ResourcesHohai UniversityNanjing 210024China Laboratory for Regional Oceanography and Numercial Modeling Qingdao Marine Science and Technology CenterQingdao 266061China National Marine Environmental Forecasting Center Ministry of Natural ResourcesBeijing 100081China Beijing Institute of Applied Meteorology Beijing 100029China

Estimated ocean subsurface fields derived from satellite observations provide potential data sources for operational marine environmental monitoring and prediction *** study employs a statistic regression reconstruction method,in combination with domestic autonomous sea surface height and sea surface temperature observations from the Haiyang-2(HY-2)satellite fusion data,to establish an operational quasi-realtime three-dimensional(3D)temperature and salinity products over the Maritime Silk *** products feature a daily temporal resolution and a spatial resolution of 0.25°×0.25°and exhibit stability and *** have demonstrated the accuracy of the reconstructed thermohaline fields in capturing the 3D thermohaline variations through comprehensive statistical evaluations,after comparing them against Argo observations and ocean analysis data from *** results illustrate that the reconstructed fields effectively represent seasonal variations in oceanic subsurface structures,along with structural changes resulting from mesoscale processes,and the upper ocean’s responses to tropical ***,the incorporation of HY-2 satellite observations notably enhances the accuracy of temperature and salinity reconstructions in the Northwest Pacific Ocean and marginally improves salinity reconstruction accuracy in the North Indian Ocean when compared to the World Ocean Atlas 2018 monthly climatology thermohaline *** a result,the reconstructed product holds promise for providing quasi-real-time 3D temperature and salinity field information to facilitate fast decisionmaking during emergencies,and also offers foundational thermohaline fields for operational ocean reanalysis and forecasting *** contributions enhance the safety and stability of ocean subsurface activities and navigation.

关键词： HY-2 satellite observations subsurface structures reconstruction Maritime Silk Road operational thermohaline product

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Immune functions of C-type lectins in medical arthropods

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Insect Science 2024年第3期31卷 652-662页

作者： Zhihao Ming zhiqiang chen Hao Tong Xia Zhou Tingting Feng Jianfeng Dai Institute of Biology and Medical Sciences Jiangsu Key Laboratory of Infection and ImmunitySoochow UniversitySuzhouJiangsu ProvinceChina School of Biology and Basic Medical Science Suzhou Medical College of Soochow UniversitySuzhouJiangsu ProvinceChina

C-type lectins(CTLs)are a family of proteins that contain 1 or more carbohydrate-recognition domains(CRDs)and bind to a broad repertoire of ligands in the presence of calcium *** play important roles in innate immune defenses against microorganisms by acting as pattern-recognition receptors(PRRs)for invading pathogens,such as bacteria,viruses,and *** binding to pathogen-associated ligands,CTLs mediate immune responses,such as agglutination,phagocytosis,and the activation of phenol oxidase progenitors,thereby clearing *** are an evolutionarily conserved family found in almost all vertebrates and *** arthropods can acquire and transmit a range pathogens through various approaches,such as bloodsucking,lancing,and parasitism,thus infecting humans and animals with related diseases,some of which can be *** studies have shown that lectins are important components of the arthropod immune system and are essential for the immune responses of arthropods to arthropod-borne *** article reviews the current understanding of the structure,function,and signaling pathways involved in CTLs derived from important medical arthropods.

关键词： arthropod C-type lectin innate immunity vector-borne disease

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Experimental study on ice monitoring method for 10 kV transmission line with tangent tower in alpine landform

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High Voltage 2024年第1期9卷 182-194页

作者： Lin Yang zhiqiang chen Yanpeng Hao Xinhao Lin Lei Yu Yue Li Zhiyong Yuan Licheng Li School of Electric Power South China University of TechnologyGuangzhouChina Electrical Power Research Institute China Southern Power GridGuangzhouChina Electric Power Research Institute of Guizhou Power Grid Co.Ltd. GuizhouChina

Ice monitoring methods were applied for 110 kV and above transmission lines with tangent ***,the change in the vertical span is not considered,and a significant difference lies in the tower-conductor structure of 10 kV transmission *** this reason,a proposal is made about the ice monitoring method for the 10 kV transmission line with tangent tower in alpine landform,which includes the ice monitoring system based on pressure measurement and corresponding equivalent ice thickness calculating *** methods calculate the vertical span under different height difference coefficients.A finite element simulation model and a simulated ice load experiment system are established based on real conductors and *** and simulations under four simulated terrains are conducted within 2.5–20 mm ice thickness *** comparison is made between this method and the method without considering the change in vertical *** results show that the two methods are consistent and the relative errors are lower than�4%in simulation and�10%in experiment when the height difference coefficient is *** it is not 0,the relative errors of this method fall between t0.38%and t6.78%in simulation and−6.40%to t6.60%in experiment,while the relative errors of the method without considering the change in vertical span ranges between−11.13%and−20.23%in simulation and−11.65%to−23.20%in experiment.

关键词： methods tangent method

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Combinatorial Optimization of Physics Parameterization Schemes for Typhoon Simulation Based on a Simple Genetic Algorithm(SGA)

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Journal of Meteorological Research 2024年第1期38卷 10-26页

作者： Zebin LU Jianjun XU zhiqiang chen Jinyi YANG Jeremy Cheuk-Hin LEUNG Daosheng XU Banglin ZHANG China Meteorological Administration–Guangdong Ocean University Joint Laboratory for Marine Meteorology South China Sea Institute of Marine MeteorologyGuangdong Ocean UniversityZhanjiang 524088 College of Ocean and Meteorology Guangdong Ocean UniversityZhanjiang 524088 Guangzhou Institute of Tropical and Marine Meteorology/Guangdong Provincial Key Laboratory of Regional Numerical Weather Prediction China Meteorological AdministrationGuangzhou 510640 Shenzhen Institute of Guangdong Ocean University Shenzhen 518120 College of Atmospheric Science Lanzhou UniversityLanzhou 730000

Each physical process in a numerical weather prediction(NWP)system may have many different parameterization *** studies have shown that the performance of different physical parameterization schemes varies with the weather situation to be ***,it is necessary to select a suitable combination of physical parameterization schemes according to the variation of weather ***,it is rather difficult to identify an optimal combination among millions of possible parameterization scheme *** study applied a simple genetic algorithm(SGA)to optimizing the combination of parameterization schemes in NWP models for typhoon *** feasibility of SGA was verified with the simulation of Typhoon Mujigae(2015)by using the Weather Research and Forecasting(WRF)model and Typhoon Higos(2020)by using the Coupled Ocean–Atmosphere–Wave–Sediment Transport(COAWST)modeling *** results show that SGA can efficiently obtain the optimal combination of *** Typhoon Mujigae(2015),the optimal combination can be found from the 1,304,576 possible combinations by running only 488 *** results can be obtained for Typhoon Higos(2020).Compared to the default combination proposed by the COAWST model system,the optimal combination scheme significantly improves the simulation of typhoon track and *** study provides a feasible way to search for the optimal combinations of physical parameterization schemes in WRF and COAWST for more accurate typhoon *** can help provide references for future development of NWP models,and for analyzing the coordination and adaptability of different physical process parameterization schemes under specific weather backgrounds.

关键词： simple genetic algorithm(SGA) combinatorial optimization typhoon forecast numerical weather prediction(NWP)

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Characteristics of genetic basis copy number variation in production and adaptation traits of Chinese indigenous sheep

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Journal of Genetics and Genomics 2024年第5期51卷 566-569页

作者： Meilin Jin Gang Liu Jian Lu zhiqiang chen Huihua Wang Taotao Li Caihong Wei State Key Laboratory of Animal Biotech Breeding Institute of Animal SciencesChinese Academy of Agricultural Sciences(CAAS)Beijing 100193China College of Animal Science and Technology China Agricultural UniversityBeijing100193China National Animal Husbandry Service National Center of Preservation&Utilization of Animal Genetic ResourcesBeijing 100125China Glbizzia Biosciences Beijing 102629China

Copy number variations(CNVs)range in size from 50 base pairs(bp)to several megabases(Mb)and encompass various types of structural variations,such as insertions,deletions,duplications,and complex multiallelic events(MacDonald et al.,2014).These genomic alterations modulate phenotype by altering gene dosage and transcriptional regulation,and are key drivers of biological evolution and determinants of genetic diversity and phenotypic *** recent years,CNVs have been detected in the genomes of various livestock species(Yuan et al.,2021;chen et al.,2022).Upadhyay et al.(2017)conducted a comprehensive analysis of CNV distribution in the European cattle genome and determined that the Kit gene is associated with color-sidedness in English longhorn *** study presented extensive genome-wide information on CNVs in wild,commercial,and local chicken breeds to gain an integrated understanding of the domestication process and exclusively identified the genes involved(chen et al.,2022).

关键词： sided number dosage

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Fu-Zheng-Yi-Liu Formula inhibits the stem cells and metastasis of prostate cancer via tumor-associated macrophages/C-C motif chemokine ligand 5 pathway in tumor microenvironment

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Chinese Journal of Natural Medicines 2024年第6期22卷 501-514页

作者： chen Chiwei HUANG Renlun WANG Neng ZHENG Yifeng ZHOU Jianfu YANG Bowen WANG Xuan ZHANG Juping PAN Bo chen zhiqiang WANG Shengqi WANG Zhiyu XIANG Songtao The Research Center of Integrative Cancer Medicine Discipline of Integrated Chinese and Western Medicinethe Second Clinical College of Guangzhou University of Chinese MedicineGuangzhou 510000China The First Clinical College of Guangzhou University of Chinese Medicine Guangzhou 510000China Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome Guangdong Provincial Academy of Chinese Medical SciencesGuangdong Provincial Hospital of Chinese MedicineGuangzhou 510000China Guangdong-Hong Kong-Macao Joint Lab on Chinese Medicine and Immune Disease Research Guangzhou University of Chinese MedicineGuangzhou 510000China The Research Center for Integrative Medicine School of Basic Medical SciencesGuangzhou University of Chinese MedicineGuangzhou 510000China State Key Laboratory of Dampness Syndrome of Chinese Medicine The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510000China

Prostate cancer(PCa)is the second most common malignancy among men *** Fu-Zheng-Yi-Liu(FZYL)Formula has been widely utilized in the treatment of *** study investigates whether the FZYL Formula can inhibit PCa by tar-geting the TAMs/CCL5 *** conducted in vitro co-cultures and in vivo co-injections of PCa cells and TAMs to mimic their *** showed that the FZYL Formula significantly reduced the proliferation,colony formation,subpopulations of PCSCs,and sphere-formation efficacy of PCa cells,even in the presence of TAM ***,the Formula markedly decreased the migration,invasion,and epithelial-mesenchymal transition(EMT)of PCa cells induced by *** FZYL Formula also reversed M2 phenotype polarization in TAMs and dose-dependently reduced their CCL5 expression and secretion,with minimal cytotoxicity *** studies confirmed that the TAMs/CCL5 axis is a critical target of the FZYL Formula,as the addition of exogen-ous CCL5 partially reversed the formula’s inhibitory effects on PCSCs self-renewal in the co-culture ***,the Formula also significantly inhibited the growth of PCa xenografts,bone metastasis,and PCSCs activity in vivo by targeting the TAMs/CCL5 ***,this study not only elucidates the immunomodulatory mechanism of the FZYL Formula in PCa therapy but also highlights the TAMs/CCL5 axis as a promising therapeutic target.

关键词： Traditional Chinese medicine Tumor-associated macrophages Prostate cancer stem cells CCL5 Tumor microenvironment

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木质纤维素基碳量子点合成与调控研究进展

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化工进展 2024年第6期43卷 3100-3113页

作者：陈志强夏明巍杨海平陈应泉王贤华陈汉平华中科技大学煤燃烧国家重点实验室湖北武汉 430074

近年各种木质纤维素类生物质被作为绿色碳源制备碳量子点,并广泛应用于防伪、成像、催化等领域.使用木质纤维素类生物质制备碳量子点可以实现其低成本、大规模、快速制备.然而木质纤维素类生物质结构复杂,木质纤维素基碳量子的合成过程... 详细信息

近年各种木质纤维素类生物质被作为绿色碳源制备碳量子点,并广泛应用于防伪、成像、催化等领域.使用木质纤维素类生物质制备碳量子点可以实现其低成本、大规模、快速制备.然而木质纤维素类生物质结构复杂,木质纤维素基碳量子的合成过程受原料种类、制备过程影响,且其荧光特性与其碳的内核结构与表面形态紧密关联.这些因素使木质纤维素基碳量子点的制备与调控过程难以精准进行,因此探究木质纤维素基碳量子点的形成过程机理和调控提质机制十分重要.鉴于此,本文对木质纤维素基量子点的形成方法、过程影响等进行了综述,分析评价了各种制备与改性方法的优缺点,深入讨论了木质纤维素基碳量子点的合成机理与调控方法,并对其存在的问题以及挑战提出了展望.

关键词：碳量子点木质纤维素合成机理光学调控

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跨座式单轨独柱大悬挑钢-混组合框架高架车站抗震设计探讨

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铁道标准设计 2024年第4期68卷 168-177页

作者：陈志强靳鹏廖宇飚中铁工程设计咨询集团有限公司建筑工程设计研究院北京100055

针对跨座式单轨独柱大悬挑钢-混组合框架高架车站结构抗震冗余度低,在高烈度地区应用较少,为更好地分析高架车站抗震受力全过程,以某跨座式单轨独柱大悬挑钢-混组合框架高架车站工程实例为背景,根据建筑规范和城市轨道交通规范要求设定... 详细信息

针对跨座式单轨独柱大悬挑钢-混组合框架高架车站结构抗震冗余度低,在高烈度地区应用较少,为更好地分析高架车站抗震受力全过程,以某跨座式单轨独柱大悬挑钢-混组合框架高架车站工程实例为背景,根据建筑规范和城市轨道交通规范要求设定合理的抗震性能目标,并研究构件抗震受力历时过程中的受力情况。采用大型有限元Midas作为主要计算软件,选取合理的地震波,进行多遇地震和设防地震有限元计算时采用弹性时程分析方法,且对振型分解反应谱法地震作用进行相应的放大,结果分析构件满足抗震性能目标要求。进行罕遇地震计算时,为更好地模拟工程实际情况,计算模型考虑桩土共同作用,采用结构-承台-桩基整体计算建模方法,进行弹塑性时程分析,关键构件采用截面纤维模型进行计算,能够反映关键构件在大震作用下进入破损阶段之后的行为,可以查看关键构件截面混凝土的开裂和压碎历史,钢材或钢筋的屈服和硬化过程。研究结果表明结构构件均满足抗震性能目标:(1)关键构件的钢材纤维受拉受压均未超过屈服强度,保持弹性工作状态,混凝土纤维受拉开裂,受压未达到屈服强度,同时延性系数D/D1小于1,均说明关键构件满足抗震性能为压弯、抗剪不屈服的目标;(2)桩基的钢筋纤维受拉、受压均未超过屈服强度,混凝土纤维受拉开裂,受压未达到屈服强度,满足抗震性能为压弯、抗剪不屈服的目标;(3)地震作用下,带有桩模型与无桩模型的基底剪力有一定差距,表现为带有桩基模型的地震剪力较大,设计时应考虑桩土共同作用。

关键词：跨座式单轨高架车站独柱大悬臂钢-混组合框架抗震性能纤维截面关键构件延性系数

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内河船舶机会性互联的复杂网络模型及其时变特性

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交通信息与安全 2024年第2期42卷 25-35页

作者：汪洋陈涛陈志强吴兵钟鸣武汉理工大学智能交通系统研究中心武汉430063 水路交通控制全国重点实验室(武汉理工大学) 武汉430063 武汉理工大学交通与物流工程学院武汉430063 武汉理工大学三亚科教创新园海南三亚572000 长江水上交通监测与应急处置中心武汉430014

针对内河船舶间出现时空邻近的机会性现象开展建模及实证研究。在社会网络分析方法的基础上,提出了1种考虑时序特征的网络分析方法,将大尺度时间跨度上的网络聚类转化为小尺度跨度上的网络聚类,进而分析内河船舶在有限水域内的动态行为... 详细信息

针对内河船舶间出现时空邻近的机会性现象开展建模及实证研究。在社会网络分析方法的基础上,提出了1种考虑时序特征的网络分析方法,将大尺度时间跨度上的网络聚类转化为小尺度跨度上的网络聚类,进而分析内河船舶在有限水域内的动态行为;考察船舶间形成邻近关系网络的时变特征,利用复杂网络表示船舶社会网络随时间的演化特性,并借助复杂网络模型对内河水域内存在较多互相熟识船舶的现象给出统计解释。基于长江下游200 km河段1个月的AIS数据,按时隙划分得到网络模型的序列,由此表现船舶间发生单跳数据交换关系的互联形态。实证结果表明:①船舶联网瞬时的度分布可用高斯分布拟合,拟合度在96%以上;②随着时间尺度的增加船舶社会网络的小世界特性和无标度特征愈加明显,网络形态在空间维度上呈现簇团情形,局部密集的组团网络由大部分静止和少量运动船舶连接起来,网络密度随时间缓慢增加至0.1左右,相对平均路径长度稳定在0.2~0.3之间,平均赋权集聚系数呈现缓慢下降的趋势最后趋于0.4~0.5,离散度较快趋向于1,并实现整体上的连通;③度值较高的船舶节点,其平均速度在不同时隙的船舶社会网络中分时段呈现相关性;④相对于船舶密度的增加,船舶在1 d内的平均友邻时间以指数形式递增,而船舶的重复相遇近似服从负指数分布。上述结果表明,内河船舶航行中数据交换关系的建立或断开是由物理空间中船舶间邻近关系的时变性决定的;内河船舶的历史交互行为对未来交互行为具有记忆性并产生影响。

关键词：交通安全船联网机会性互联时序复杂网络模型时变特性

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广东台山上川岛猕猴省级自然保护区种子植物区系研究

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绿色科技 2024年第8期26卷 89-95页

作者：陈志强广东台山上川岛猕猴省级自然保护区管理处广东台山529200

为加强广东台山上川岛猕猴省级自然保护区植物资源的有效管理,采用标本法结合样线法调查,研究了该保护区的种子植物区系。结果显示:该保护区有野生维管植物141科447属662种(含种下单位),其中种子植物128科424属628种;种子植物数量优势... 详细信息

为加强广东台山上川岛猕猴省级自然保护区植物资源的有效管理,采用标本法结合样线法调查,研究了该保护区的种子植物区系。结果显示:该保护区有野生维管植物141科447属662种(含种下单位),其中种子植物128科424属628种;种子植物数量优势科依次是禾本科、菊科、豆科、莎草科、茜草科等世界广布科。上川岛猕猴保护区的区系成分以热带性为主,与其所处南亚热带的地理位置相符,同时该保护区还有2个中国特有属。

关键词：广东台山上川岛猕猴省级自然保护区种子植物区系特征

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