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Analysis on the causes of massive stranding of Yellow Sea green tide on Lianyungang and Rizhao coasts in 2022

Journal of Oceanology and Limnology 2024年第3期42卷 816-830页

作者： Lingjuan WU Juan HUANG Yi DING Guiyan LIU Shuai HUANG Song GAO Chao YUAN jiangling xu Ping WU Rui HUANG Ruobing WEN Jie MEI North China Sea Marine Forecasting and Hazard Mitigation Center Ministry of Natural ResourcesQingdao 266061China Shandong Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation Qingdao 266061China National Engineering Laboratory for Integrated Aero-Space-Ground-Ocean Big Data Application Technology Xi’an 710129China East China Sea Marine Forecasting and Hazard Mitigation Center Ministry of Natural ResourcesShanghai 200136China North China Sea Ecological Center Ministry of Natural ResourcesQingdao 266033China

In 2022,Yellow Sea green tide caused by Ulva prolifera reached a historic minimum and the coastal areas of Shandong Peninsula were less ***,the largest amount of seaweed biomass has been washed ashore on Lianyungang and Rizhao coasts since *** studied the development pattern of Yellow Sea green tide in 2022,and analyzed the key environmental factors on the growth and drifting,then discussed the possible reasons that resulted in the massive stranding of green tide biomass in Lianyungang and *** show under the combined influence of the east to southeast winds and currents with shoreward anomalies,green tide drifted to the coastal waters between Shandong and Jiangsu provinces and the distribution areas located westward compared with previous years(2008–2021).Floating *** rafts from the coastal waters of Binhai and Sheyang drifted continuously into the coastal waters of Lianyungang and Rizhao,providing important supplements for Yellow Sea green *** green tide in 2022 distributed close to the coastal waters,the abundant nutrients might support their continuous high growth *** addition,the amount of rainfall around Shandong Peninsula from late June to early July were significantly higher than in previous years,which might promote the development of green tide to some extent.

关键词： Yellow Sea green tide stranding biomass development pattern environmental factor

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基于层级图标签表示网络的多标签文本分类

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计算机应用研究 2024年第2期41卷 388-392,407页

作者：徐江玲陈兴荣中国地质大学(武汉)数学与物理学院武汉430000

多标签文本分类是一项基础而实用的任务,其目的是为文本分配多个可能的标签。近年来,人们提出了许多基于深度学习的标签关联模型,以结合标签的信息来学习文本的语义表示,取得了良好的分类性能。通过改进标签关联的建模和文本语义表示来... 详细信息

多标签文本分类是一项基础而实用的任务,其目的是为文本分配多个可能的标签。近年来,人们提出了许多基于深度学习的标签关联模型,以结合标签的信息来学习文本的语义表示,取得了良好的分类性能。通过改进标签关联的建模和文本语义表示来推进这一研究方向。一方面,构建的层级图标签表示,除了学习每个标签的局部语义外,还进一步研究多个标签共享的全局语义;另一方面,为了捕捉标签和文本内容间的联系并加以利用,使用标签文本注意机制来引导文本特征的学习过程。在三个多标签基准数据集上的实验表明,该模型与其他方法相比具有更好的分类性能。

关键词：多标签文本分类标签相关性层级图表示标签组嵌入标签文本注意力

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大豆斑疹病菌铁摄取因子PiuB在致病性中的作用分析

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生物工程学报 2024年第1期40卷 177-189页

作者：苏如意金罗佳徐江玲耿慧雅陈晓林思怡郭威纪志远浙江师范大学生命科学学院浙江金华321004 中国农业科学院作物科学研究所农作物基因资源与基因改良国家重大科学工程北京100081

铁作为生命必需的基本元素,在细菌生长代谢过程中具有重要作用。然而,大豆斑疹病菌(Xanthomonas axonopodis ***,Xag)中编码铁摄取因子的piuB基因是否参与病原菌的铁摄取和致病性并不清楚。为解析PiuB的作用,采用同源重组策略获得了Xag... 详细信息

铁作为生命必需的基本元素,在细菌生长代谢过程中具有重要作用。然而,大豆斑疹病菌(Xanthomonas axonopodis ***,Xag)中编码铁摄取因子的piuB基因是否参与病原菌的铁摄取和致病性并不清楚。为解析PiuB的作用,采用同源重组策略获得了Xag的piuB基因缺失突变株(ΔpiuB),并对该突变株进行功能研究。研究表明:相较于野生型,突变株ΔpiuB在寄主大豆上的毒性和生长能力显著削弱;铁载体分泌量激增;对Fe^(3+)、Cu^(2+)、Zn^(2+)和Mn^(2+)的敏感性显著增强。此外,该突变株的H_(2)O_(2)抗性、胞外多糖产量、生物膜形成能力以及游动性等相较于野生型均显著减弱;添加外源Fe^(3+)不能有效恢复ΔpiuB的上述特性;功能互补株可完全恢复ΔpiuB的缺陷性表型至野生型水平。这说明PiuB是Xag摄取Fe^(3+)的潜在因子,并且是Xag在寄主大豆上致病所需的。

关键词：大豆斑疹病菌铁摄取因子PiuB Fe^(3+) 致病性

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海上溢油应急处置决策支持系统的研发与实现

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防灾科技学院学报 2024年第1期26卷 47-55页

作者：陈星徐江玲高松刘桂艳李轶斐中海油研究总院有限责任公司北京100124 国家海洋局北海预报中心山东青岛266100

基于元模型和多视图建模思想,制定了规范化场景构建体系,通过微服务的形式搭建SOA混合架构,研发了海上溢油应急处置决策支持系统。该系统以大数据平台、模型库、知识库、方法库、场景库为基础,实现了对海上溢油事件应急处置资源的集成... 详细信息

基于元模型和多视图建模思想,制定了规范化场景构建体系,通过微服务的形式搭建SOA混合架构,研发了海上溢油应急处置决策支持系统。该系统以大数据平台、模型库、知识库、方法库、场景库为基础,实现了对海上溢油事件应急处置资源的集成和融合应用,提供溢油事故的接警、监测预警、应急指挥、智能方案生成和辅助决策功能,管理者可在该系统平台上对溢油事故进行快速应急处置及决策分析。解决了目前海上溢油应急处置过程中信息集成度低、决策手段主观、科学态势分析不足和处置系统效率不高的问题,能够提升我国应对海上突发事件的能力。

关键词：溢油决策支持 SOA架构应急处置

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Photothermal properties of Cu@polycarbonate composites with strong localized surface plasmon resonances

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Nano Research 2024年第9期17卷 8513-8520页

作者： Fengyi Wang jiangling He Junshan Hu Zhihui Chen Yumeng Shi Qing-Hua xu SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationInstitute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China Department of Chemistry National University of Singapore3 Science Drive 3Singapore 117543Singapore College of Materials Science and Engineering Sichuan UniversityChengdu 610065China

Copper is relatively low cost and highly abundant compared with the well-studied noble metals such as gold and ***,the poor plasmonic and high susceptibility towards oxidation limit the study of its optical properties and applications as ***,copper nanoparticles@polycarbonate(Cu@PC)composites were prepared by using a facile one-step solvothermal *** Cu@PC composites have strong localized surface plasmon resonances(LSPR)due to that the PC shell can induce the particles to form many-particles system with different particle numbers,which not only lead to overlap and hybridize of the LSPR modes,but also shift the LSPR away from the interband transitions,and the PC layer also prevents the oxidation of Cu *** photothermal conversion efficiency of Cu@PC composites reaches 41.1%under 808 nm continuous wave(CW)laser irradiation which is higher than previously reported Cu nanomaterials that have been ***,the composites also have high photothermal ***,interfacial evaporator is prepared by assembling the Cu@PC composites on scouring sponge as light absorption layer which has>92.8%absorption in entire solar spectrum *** seawater evaporation rate is 3.177 kg·m-2·h^(-1)with a E_(evaporator)/E_(water)of *** high evaporation rate interfacial evaporator with low cost,simple,and scalable approach shows great application value in the field of photothermal evaporation.

关键词： Cu nanoparticles localized surface plasmon resonances(LSPR) photothermal interfacial evaporation

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Unimolecular Self-Assembled Hemicyanine-Oleic Acid Conjugate Acts as a Novel Succinate Dehydrogenase Inhibitor to Amplify Photodynamic Therapy and Eliminate Cancer Stem Cells

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Research 2024年第2期6卷 449-461页

作者： Qiang Wang Tian Yang Shiyou Li Chen xu Chong Wang Yuxuan Xiong Xing Wang jiangling Wan Xiangliang Yang Zifu Li National Engineering Research Center for Nanomedicine College of Life Science and Technology.Huazhong University of Science and TechnologyWuhan 430074P.R.China Key Laboratory of Molecular Biophysics of Ministry of Education College of Life Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074P.R.China .3Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medical Huazhong University of Science and TechnologyWuhan 430074P.R.China Hubei Engineering Research Center for Biomaterials and Medical Protective Materials Huazhong University of Science and TechnologyWuhan 430074P.R.China Hubei Bioinformatics and Molecular Imaging Key Laboratory College of Life Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074P.R.China

Photodynamic therapy with reactive oxygen species production is a prospective treatment to combat cancer stem cells(CSCs).However,the innate drawbacks,including short lifetime and diffusion distance of reactive oxygen species and hypoxia within solid tumors,have become bottlenecks for clinical applications of photodynamic ***,we develop a mitochondria-targeting hemicyanine-oleic acid conjugate(CyOA),which can self-assemble into supramolecular nanoparticles(NPs)without any exogenous *** is also shown for targeting the mitochondrial complex II protein succinate dehydrogenase to inhibit oxidative phosphorylation and reverse tumor hypoxia,resulting in 50.4-fold higher phototoxicity against breast cancer stem cells(BCSCs)compared to SO_(3)-CyOA NPs that cannot target to *** 4T1 and BCSC tumor models,CyOA NPs achieve higher tumor inhibition and less lung metastasis nodules compared to the clinically used photosensitizer *** study develops a self-assembled small molecule that can serve as both oxidative phosphorylation inhibitor and photosensitizer for eradication of CSCs and treatment of solid tumors.

关键词： cyanine oxidative treatment

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Verification of an operational ocean circulation-surface wave coupled forecasting system for the China＇s seas

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Acta Oceanologica Sinica 2016年第2期35卷 19-28页

作者： WANG Guansuo ZHAO Chang xu jiangling QIAO Fangli XIA Changshui College of Oceanic and Atmospheric Science Ocean University of China Qingdao 266003 China The First Institute of Oceanography State Oceanic Administration Qingdao 266061 China Key Laboratory of Marine Science and Numerical Modeling (MASNUM) State Oceanic Administration Qingdao 266061 China North China Sea Marine Forecasting Center of State Oceanic Administration Qingdao 266033 China

An operational ocean circulation-surface wave coupled forecasting system for the seas off China and adjacent areas（OCFS-C） is developed based on parallelized circulation and wave models. It has been in operation since November 1, 2007. In this paper we comprehensively present the simulation and verification of the system, whose distinguishing feature is that the wave-induced mixing is coupled in the circulation model. In particular, with nested technique the resolution in the China＇s seas has been updated to（1/24）° from the global model with（1/2）°resolution. Besides, daily remote sensing sea surface temperature（SST） data have been assimilated into the model to generate a hot restart field for OCFS-C. Moreover, inter-comparisons between forecasting and independent observational data are performed to evaluate the effectiveness of OCFS-C in upper-ocean quantities predictions, including SST, mixed layer depth（MLD） and subsurface temperature. Except in conventional statistical metrics, non-dimensional skill scores（SS） is also used to evaluate forecast skill. Observations from buoys and Argo profiles are used for lead time and real time validations, which give a large SS value（more than 0.90）. Besides, prediction skill for the seasonal variation of SST is confirmed. Comparisons of subsurface temperatures with Argo profiles data indicate that OCFS-C has low skill in predicting subsurface temperatures between 100 m and 150 m. Nevertheless, inter-comparisons of MLD reveal that the MLD from model is shallower than that from Argo profiles by about 12 m, i.e., OCFS-C is successful and steady in MLD predictions. Validation of 1-d, 2-d and 3-d forecasting SST shows that our operational ocean circulation-surface wave coupled forecasting model has reasonable accuracy in the upper ocean.

关键词： operational forecast sea surface temperature mixed layer depth lead time subsurface temperature ocean circulation-surface wave coupled forecast system China's seas

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Assimilation of High Frequency Radar Data into a Shelf Sea Circulation Model

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Journal of Ocean University of China 2014年第4期13卷 572-578页

作者： xu jiangling HUANG Juan GAO Song CAO Yajing North China Sea Marine Forecast Center of the State Oceanic Administration

High Frequency(HF) radar current data is assimilated into a shelf sea circulation model based on optimal interpolation(OI) method. The purpose of this work is to develop a real-time computationally highly efficient assimilation method to improve the forecast of shelf current. Since the true state of the ocean is not known, the specification of background error covariance is arduous. Usually, it is assumed or calculated from an ensemble of model states and is kept in constant. In our method, the spatial covariances of model forecast errors are derived from differences between the adjacent model forecast fields, which serve as the forecast tendencies. The assumption behind this is that forecast errors can resemble forecast tendencies, since variances are large when fields change quickly and small when fields change slowly. The implementation of HF radar data assimilation is found to yield good information for analyses. After assimilation, the root-mean-square error of model decreases significantly. Besides, three assimilation runs with variational observation density are implemented. The comparison of them indicates that the pattern described by observations is much more important than the amount of observations. It is more useful to expand the scope of observations than to increase the spatial interval. From our tests, the spatial interval of observation can be 5 times bigger than that of model grid.

关键词：数据同化环流模型雷达数据陆架海高频模型预测实时计算预测误差

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2021—2022年世界塑料工业进展(Ⅱ):工程塑料和特种工程塑料

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塑料工业 2023年第4期51卷 13-24,109页

作者：许江菱中蓝晨光化工研究设计院有限公司《塑料工业》编辑部四川成都610041

收集了2021年7月—2022年6月世界工程塑料和特种工程塑料工业的相关资料,介绍了2021—2022年世界工程塑料和特种工程塑料工业的发展情况,按工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯)和特种工程塑料(聚邻苯二甲酰胺、聚苯硫醚、聚... 详细信息

收集了2021年7月—2022年6月世界工程塑料和特种工程塑料工业的相关资料,介绍了2021—2022年世界工程塑料和特种工程塑料工业的发展情况,按工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯)和特种工程塑料(聚邻苯二甲酰胺、聚苯硫醚、聚醚醚酮)不同品种的顺序,对树脂的产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍。

关键词：工程塑料尼龙聚碳酸酯聚甲醛热塑性聚酯聚邻苯二甲酰胺聚苯硫醚聚醚醚酮进展

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Assimilation of surface currents into a regional model over Qingdao coastal waters of China

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Acta Oceanologica Sinica 2013年第7期32卷 21-28页

作者： ZHAO Jian CHEN xueen xu jiangling HU Wei CHEN Jinrui Pohlmann Thomas College of Physical and Environmental Oceanography Ocean University of China North China Sea Brach State Oceanic Administration University of Hamburg

Surface currents measured by high frequency （HF） radar arrays are assimilated into a regional ocean model over Qingdao coastal waters based on Kalman filter method. A series of numerical experiments are per- formed to evaluate the performance of the data assimilation schemes. In order to optimize the analysis pro- cedure in the traditional ensemble Kalman filter （ENKF）, a different analysis scheme called quasiensemble Kaman filter （QENKF） is proposed. The comparisons between the ENKF and the QENKF suggest that both them can improve the simulated error and the spatial structure. The estimations of the background error covariance （BEC） are also assessed by comparing three different methods： Monte Carlo method; Canadian quick covariance （CQC） method and data uncertainty engine （DUE） method. A significant reduction of the root-mean-square （RMS） errors between model results and the observations shows that the CQC method is able to better reproduce the error statistics for this coastal ocean model and the corresponding external forcing. In addition, the sensibility of the data assimilation system to the ensemble size is also analyzed by means of different scales of the ensemble size used in the experiments. It is found that given the balance of the computational cost and the forecasting accuracy, the ensemble size of 50 will be an appropriate choice in the Qingdao coastal waters.

关键词： Qingdao coastal waters surface currents Ensemble Kalman filter Finite Volume Coastal OceanModel (FVCOM)

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