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China Ocean Engineering 2024年第1期38卷 81-92页

作者： LIAO Xi-yu XIA Jin-song CHEN Zhan-yang TANG Qin zhao Nan zhao wei-dong GUI Hong-bin Marine Design&Research Institute of China Shanghai 200011China Ship Structure Division China Ship Scientific Research CenterWuxi 214082China College of Ocean Engineering Harbin Institute of TechnologyWeihaiWeihai 264209China State Key Laboratory of Structural Analysis Optimization and CAE Software for Industrial EquipmentDalian University of TechnologyDalian 116024China School of Foreign Studies Jiangnan UniversityWuxi 214122China

To predict the wave loads of a flexible trimaran in different wave fields,a one-way interaction numerical simulation method is proposed by integrating the fluid solver(Star-CCM+)and structural solver(Abaqus).Differing from the existing coupled CFD-FEA method for monohull ships in head waves,the presented method equates the mass and stiffness of the whole ship to the hull shell so that any transverse and longitudinal section stress of the hull in oblique waves can be ***,verification study and sensitivity analysis are carried out by comparing the trimaran motions using different mesh sizes and time step *** on the wave elevation of uni-and bi-directional waves is also carried *** a comprehensive analysis on the structural responses of the trimaran in different uni-directional regular wave and bi-directional cross sea conditions is carried out,***,the differences in structural response characteristics of trimaran in different wave fields are *** results show that the present method can reduce the computational burden of the two-way fluid-structure interaction simulations.

关键词： CFD-FEA fluid-structure coupling structural responses trimaran bi-directional cross sea

中国式现代化视域下新闻传播专业教育的创新路径

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齐齐哈尔高等师范专科学校学报 2024年第1期 16-19页

作者：赵伟东哈尔滨商业大学哈尔滨150028

中国式现代化视域下新闻传播专业教育创新路径应为强化思政教育,铸就新闻传播专业人才精神魂魄;注重素质教育,推动新闻传播专业人才全面发展;贯通知行教育,培养新闻传播专业人才知行合一。培育出具有坚定的政治立场、高尚的道德情操、... 详细信息

中国式现代化视域下新闻传播专业教育创新路径应为强化思政教育,铸就新闻传播专业人才精神魂魄;注重素质教育,推动新闻传播专业人才全面发展;贯通知行教育,培养新闻传播专业人才知行合一。培育出具有坚定的政治立场、高尚的道德情操、为国为民的精神魂魄的新闻传播专业人才,培植出既具有德智体美劳素质教育的广度,又具备精湛专业技能的素质教育深度和具有创新精神、创业意识、知行合一的全面发展的新闻传播专业人才,为推动中国式现代化贡献出新闻传播专业人才的青春和力量。

关键词：中国式现代化新闻传播专业教育思政教育素质教育知行教育

头孢他啶/阿维巴坦治疗耐碳青霉烯类肺炎克雷伯菌感染的研究进展

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中国感染控制杂志 2024年第8期23卷 1047-1052页

作者：赵圆祺程明璟熊苗苗肖敏崔秀玉周子健余艺伟赵卫东大理大学临床医学院云南大理671000

近年来,耐碳青霉烯类肺炎克雷伯菌(CRKP)感染的流行已成为全球公共卫生问题。头孢他啶/阿维巴坦(CAZ/AVI)作为一种新型的抗菌药物已批准用于治疗医院获得性肺炎/呼吸机相关肺炎、血流感染、肾移植术后感染和肝硬化合并严重感染。然而,随... 详细信息

近年来,耐碳青霉烯类肺炎克雷伯菌(CRKP)感染的流行已成为全球公共卫生问题。头孢他啶/阿维巴坦(CAZ/AVI)作为一种新型的抗菌药物已批准用于治疗医院获得性肺炎/呼吸机相关肺炎、血流感染、肾移植术后感染和肝硬化合并严重感染。然而,随着CAZ/AVI的使用,CAZ/AVI耐药菌株也随之产生。CAZ/AVI主要耐药机制为bla KPC基因过表达、产β-内酰胺酶及关键位点氨基酸的突变、膜孔蛋白丢失导致的细胞通透性改变和外排泵的过表达。本文将对CAZ/AVI在治疗CRKP感染方面的研究进展进行综述,为临床诊断和治疗提供参考依据。

关键词：头孢他啶/阿维巴坦肺炎克雷伯菌碳青霉烯酶耐碳青霉烯类肺炎克雷伯菌

A Study on the Multi-Objective Optimization Method of Brackets in Ship Structures

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China Ocean Engineering 2022年第2期36卷 208-222页

作者： LIU Fan HU Yu-meng FENG Guo-qing zhao wei-dong ZHANG Ming Harbin Engineering University Harbin 150001China International Joint Laboratory of Naval Architecture and Offshore Technology between Harbin Engineering University and the University of Lisbon Harbin 150001China The 41st Institute of the Fourth Academy of the China Aerospace Science and Technology Corporation Xi’an 710025China

The shape and size optimization of brackets in hull structures was conducted to achieve the simultaneous reduction of mass and high stress,where the parametric finite element model was built based on Patran Command Language *** optimization procedure was executed on Isight platform,on which the linear dimensionless method was introduced to establish the weighted multi-objective *** extreme processing method was applied and proved effective to normalize the *** bracket was optimized under the typical single loads and design waves,accompanied by the different proportions of weights in the objective function,in which the safety factor function was further established,including yielding,buckling,and fatigue strength,and the weight minimization and safety maximization of the bracket were *** findings of this study illustrate that the dimensionless objectives share equal contributions to the multi-objective function,which enhances the role of weights in the optimization.

关键词： brackets parametric finite element model multi-objective optimization extreme processing method safety factor function weighted multi-objective function

Fe(Ⅲ)对Anammox污泥脱氮效能长短期影响

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中国环境科学 2024年第3期44卷 1278-1285页

作者：郭佳文林兴李祥黄勇刘天琪赵魏东苏州科技大学环境科学与工程学院江苏苏州215009 苏州科技大学江苏水处理技术与材料协同创新中心江苏苏州215009 苏州天竣环境科技有限公司江苏苏州215009

通过接种厌氧氨氧化(Anammox)污泥,研究了Fe(Ⅲ)对Anammox污泥脱氮效能长短期影响.结果表明,适量提升Fe(Ⅲ)浓度可以提升Anammox菌的活性.当进水Fe(Ⅲ)浓度达到0.09mol/L时,反应器氮去除速率最高为0.238kg/(L·d),较对照组提升了14.2%.... 详细信息

通过接种厌氧氨氧化(Anammox)污泥,研究了Fe(Ⅲ)对Anammox污泥脱氮效能长短期影响.结果表明,适量提升Fe(Ⅲ)浓度可以提升Anammox菌的活性.当进水Fe(Ⅲ)浓度达到0.09mol/L时,反应器氮去除速率最高为0.238kg/(L·d),较对照组提升了14.2%.继续提高进水Fe(Ⅲ)浓度,氮去除速率逐步下降,当Fe(Ⅲ)浓度升至0.18mol/L时,氮去除速率降至0.215kg/(L·d),与最高氮去除速率相比下降10.75%.采用Haldane抑制动力学模型拟合得到Fe(Ⅲ)对Anammox半速率常数(KFe)为0.012mol/L,半抑制常数(KI)为0.449mol/L.长期结果表明,在0.09mol/L Fe(Ⅲ)浓度下,Anammox氮去除速率增幅最快,并且随着Fe(Ⅲ)浓度增加而逐步降低.由于Fe(Ⅲ)代替了NO_(2)^(-)-N作为电子受体发生厌氧铁氨氧化反应,在含有Fe(Ⅲ)的反应器中NO_(2)^(-)-N与NH_(4)^(+)-N的转化比在1.108~1.227之间波动,明显低于理论值1.32,并随Fe(Ⅲ)浓度的提升而降低.扫描电镜结果表明,添加Fe(Ⅲ)可使Anammox菌细胞结构更加稳定.

关键词： Fe(Ⅲ) 厌氧氨氧化脱氮性能抑制动力学扫描电镜

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厂坝铅锌矿环境地质条件浅析

世界有色金属 2024年第6期 201-203页

作者：王欢赵维东霍小娟王博甘肃省有色金属地质勘查局兰州矿产勘查院甘肃兰州730046

本矿区的开采历史相当悠久,过去二十多年的实际采矿活动严重损害了本地地质环境。由于矿区分为三个开采单元,各自提交的成果仅限于本矿区范围内,对环境地质条件的认识存在较大分歧。经过本次核实后矿区总体的环境地质条件和当前地质环... 详细信息

本矿区的开采历史相当悠久,过去二十多年的实际采矿活动严重损害了本地地质环境。由于矿区分为三个开采单元,各自提交的成果仅限于本矿区范围内,对环境地质条件的认识存在较大分歧。经过本次核实后矿区总体的环境地质条件和当前地质环境破坏程度以及未来可能出现的地质问题等方面的综合分析,我们得出结论,厂坝铅锌矿的环境地质条件属于恶劣等级。

关键词：环境地质地下水地质灾害

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An improved deep dilated convolutional neural network for seismic facies interpretation

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Petroleum Science 2024年第3期21卷 1569-1583页

作者： Na-Xia Yang Guo-Fa Li Ting-Hui Li dong-Feng zhao wei-wei Gu State Key Laboratory of Petroleum Resources and Engineering CNPC Key Lab of Geophysical Exploration China University of Petroleum (Beijing) Dagang Branch Research InstituteBGP

With the successful application and breakthrough of deep learning technology in image segmentation,there has been continuous development in the field of seismic facies interpretation using convolutional neural networks. These intelligent and automated methods significantly reduce manual labor, particularly in the laborious task of manually labeling seismic facies. However, the extensive demand for training data imposes limitations on their wider application. To overcome this challenge, we adopt the UNet architecture as the foundational network structure for seismic facies classification, which has demonstrated effective segmentation results even with small-sample training data. Additionally, we integrate spatial pyramid pooling and dilated convolution modules into the network architecture to enhance the perception of spatial information across a broader range. The seismic facies classification test on the public data from the F3 block verifies the superior performance of our proposed improved network structure in delineating seismic facies boundaries. Comparative analysis against the traditional UNet model reveals that our method achieves more accurate predictive classification results, as evidenced by various evaluation metrics for image segmentation. Obviously, the classification accuracy reaches an impressive 96%. Furthermore, the results of seismic facies classification in the seismic slice dimension provide further confirmation of the superior performance of our proposed method, which accurately defines the range of different seismic facies. This approach holds significant potential for analyzing geological patterns and extracting valuable depositional information.

关键词： Seismic facies interpretation Dilated convolution Spatial pyramid pooling Internal feature maps Compound loss function

High‑Entropy Layered Oxide Cathode Enabling High‑Rate for Solid‑State Sodium‑Ion Batteries

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Nano-Micro Letters 2024年第1期16卷 160-171页

作者： Tianxun Cai Mingzhi Cai Jinxiao Mu Siwei zhao Hui Bi wei zhao Wujie dong Fuqiang Huang State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871People’s Republic of China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049People’s Republic of China Zhongke Institute of Strategic Emerging Materials Yixing 214213JiangsuPeople’s Republic of China

Na-ion O3-type layered oxides are prospective cathodes for Na-ion batteries due to high energy density and ***,such cathodes usually suffer from phase transitions,sluggish kinetics and air instability,making it difficult to achieve high performance solid-state sodium-ion ***,the high-entropy design and Li doping strategy alleviate lattice stress and enhance ionic conductivity,achieving high-rate performance,air stability and electrochemically thermal stability for Na_(0.95)Li_(0.06)Ni_(0.25)Cu_(0.05)Fe_(0.15)Mn_(0.49)O_(2).This cathode delivers a high reversible capacity(141 mAh g^(−1)at 0.2C),excellent rate capability(111 mAh g^(−1)at 8C,85 mAh g^(−1)even at 20C),and long-term stability(over 85%capacity retention after 1000 cycles),which is attributed to a rapid and reversible O3–P3 phase transition in regions of low voltage and suppresses phase ***,the compound remains unchanged over seven days and keeps thermal stability until 279℃.Remarkably,the polymer solid-state sodium battery assembled by this cathode provides a capacity of 92 mAh g^(−1)at 5C and keeps retention of 96%after 400 *** strategy inspires more rational designs and could be applied to a series of O3 cathodes to improve the performance of solid-state Na-ion batteries.

关键词： High-entropy High-rate performance Li-TM interaction Air stability O3 layered oxide cathode

γδT cells:Major advances in basic and clinical research in tumor immunotherapy

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Chinese Medical Journal 2024年第1期137卷 21-33页

作者： Yueqi zhao Peng dong wei He Jianmin Zhang Hui Chen Department of Immunology CAMS Key Laboratory for T Cell and ImmunotherapyState Key Laboratory of Medical Molecular BiologyInstitute of Basic Medical SciencesChinese Academy of Medical Sciences and School of Basic MedicinePeking Union Medical CollegeBeijing 100005China Changzhou Xitaihu Institute for Frontier Technology of Cell Therapy ChangzhouJiangsu 213000China Haihe Laboratory of Cell Ecosystem Chinese Academy of Medical Sciences and Peking Union Medical CollegeTianjin 300020China

γδT cells are a kind of innate immune T *** have not attracted sufficient attention because they account for only a small proportion of all immune cells,and many basic factors related to these cells remain ***,in recent years,with the rapid development of tumor immunotherapy,γδT cells have attracted increasing attention because of their ability to exert cytotoxic effects on most tumor cells without major histocompatibility complex(MHC)*** increasing number of basic studies have focused on the development,antigen recognition,activation,and antitumor immune response ofγδT ***,γδT cell-based immunotherapeutic strategies are being developed,and the number of clinical trials investigating such strategies is *** review mainly summarizes the progress of basic research and the clinical application ofγδT cells in tumor immunotherapy to provide a theoretical basis for further the development ofγδT cell-based strategies in the future.

关键词： Gamma-delta T-cells T cell receptor CD1a Tumor immunotherapy Receptors,chimeric antigen Vδ1 cells αβT cells

某核电厂发电机定子水冷却器盲板缝隙腐蚀原因分析及解决措施

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全面腐蚀控制 2024年第1期38卷 87-89页

作者：赵卫东吴昉赟邓彦礼刘洪群江锋中核核电运行管理有限公司浙江海盐314300 苏州热工研究院有限公司江苏苏州215004

某核电站大修时的腐蚀检查,发现发电机定子水冷却器的盲板存在腐蚀问题。本文从腐蚀形貌和耐蚀性能两个方面对盲板的腐蚀原因进行了分析,得出结论是由于发电机定子水冷却器盲板的材质为304不锈钢,而304不锈钢在海水环境下,耐腐蚀性能不... 详细信息

某核电站大修时的腐蚀检查,发现发电机定子水冷却器的盲板存在腐蚀问题。本文从腐蚀形貌和耐蚀性能两个方面对盲板的腐蚀原因进行了分析,得出结论是由于发电机定子水冷却器盲板的材质为304不锈钢,而304不锈钢在海水环境下,耐腐蚀性能不佳,导致盲板发生了缝隙腐蚀。针对盲板缝隙腐蚀问题,本文提出了相应的解决措施,以有效解决问题并确保设备的正常运行,为核电站发电设备的维护和管理提供了参考。

关键词：发电机定子水冷却器盲板缝隙腐蚀解决措施