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Deep electrical structures of Qinzhou-Fangcheng Junction Zone in Guangxi and seismogenic environment of the 1936 Lingshan M6^(3/4)earthquake

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Science China Earth Sciences 2024年第2期67卷 584-603页

作者： Bin zhou Chunheng YAN Yan ZHAN Xiangyu SUN Sha LI Xiang WEN Yajun MO Yongdong YUAN Yuan YUAN Meili HUANG Earthquake Agency of Guangxi Zhuang Autonomous Region Nanning530022China State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing100029China Guangxi Geophysical Survey Institute Liuzhou545005China

The tectonic position of the southwest section of the Qinzhou Bay-Hangzhou Bay Tectonic Junction Zone(QHTJZ)can be determined by examining the Qinzhou-Fangcheng Junction Zone(QFJZ)in *** zone is significant because it was the location of the largest earthquake ever recorded in the inland region of South China,specifically the 1936 Lingshan M6^(3/4)earthquake in ***,this region serves as an optimal location for researching the origins of intraplate earthquakes in South *** study presents a display of a broadband magnetotelluric(MT)prospecting profile that traverses the Guangxi QFJZ and the Lingshan earthquake zone,extending from the northwest(NW)to the southeast(SE).A resistivity structure model was generated using three-dimensional(3D)inversion technology along the *** main faults in QFJZ were analyzed in terms of their deep extension forms and tectonic *** analysis was performed by integrating the results obtained from geology,gravity,wave velocity ratio,Global Position System(GPS),and geothermal *** results showed that(1)the Dongzhong-Xiaodong fault(DXf),the eastern Fangcheng-Lingshan fault(FLf2),and the eastern Hepu-Beiliu fault(HBf2)were all trans-crustal deep faults,and crust-mantle ductile shear zones developed in the deep *** electrical boundary zones,DXf and HBf2,were *** inclined towards the northwest,while HBf2 inclined towards the *** FangchengLingshan fault(FLf)exhibits a tectonic style resembling a“flower”shape in the upper *** the deeper section,it is characterized by an electrical boundary zone that gradually slopes towards the southeast direction.(2)The Hunan-Guangxi Passive Continental Margin(HGPCM)on the NW side of DXf had a stratified resistivity structure and relatively stable Bouguer gravity anomalies,which conformed to the quasi-craton tectonic attribute of the local failure at the southeastern margin of the Yangtze Block(YB).The southeastern side of this bloc

关键词： South China Block Qinzhou-Fangcheng Junction Zone Magnetotelluric 1936 Lingshan M6^(3/4)earthquake Deep seismogenic environment

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Fishing for Tourists--Rural revitalization of fishing villages in Qingdao has focused on maximizing the benefits tourism can bring to the local people

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China Report ASEAN 2024年第8期9卷 68-71页

作者： guo Xixian 不详

The summer heat seemed to have avoided the beautiful coastal city of *** Qingdao International Beer Festival,in its 34th consecutive year,has attracted an impressive draw of *** July 25,the passenger throughput of Qingdao Airport exceeded 90,*** far from the venue of the beer festival is Liuqing Bay in Qingdao’s Laoshan District,where Shan Bing’s homestay saw a spike in occupancy as it entered this year’s peak season.

关键词： Rural Qingdao beautiful

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Fabrication of micro spherulitic particles of carbamazepine-hesperetin cocrystal via QESD with enhanced manufacturability and dissolution

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PARTICUOLOGY 2024年第10期93卷 11-21页

作者： Ouyang, Jinbo Liu, Lishan Ning, Zichen Gong, Zhuoshan zhou, Limin He, Feiqiang Gao, Zhi Xu, Li Du, Shichao Yang, Huaiyu East China Univ Technol Jiangxi Prov Key Lab Funct Organ Polymers Nanchang 330013 Peoples R China Qilu Univ Technol Sch Pharmaceut Sci Jinan 250353 Peoples R China Loughborough Univ Dept Chem Engn Loughborough LE11 3TU Leics England

Granulation is an effective method for improving the flowability of drugs, particularly when they are in needle form. Carbamazepine-hesperetin (CBZ-HPE) cocrystal is a needle-like crystal with low solubility and poor flowability, which limits its application. To address this issue, this study aimed to obtain CBZHPE microspheres using the quasi-emulsion solvent diffusion (QESD) technique. The preparation process was monitored using polarized light microscopy, and the formation mechanism was elucidated using the radial distribution function (RDF). The microspheres were extensively characterized using PXRD, DSC, TGA, and SEM. Furthermore, the effects of surfactants, contents, and rotational speeds on the morphology and particle size distribution of microspheres were analyzed to determine the optimal experimental conditions. Based on these findings, naringenin and quercetin, the active ingredients of traditional Chinese medicine, were chosen to successfully prepare CBZ-HPE multicomponent microspheres. This research provides a foundation for increasing drug powder properties and drug conjugation through the preparation of microspheres. (c) 2024 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

关键词： Carbamazepine-hesperetin cocrystal Quasi -emulsion solvent diffusion (QESD) technique Microspheres Flowability Dissolution rate SPHERICAL CRYSTALLIZATION AGGLOMERATION

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Lifelong Connections To Learning

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China Report ASEAN 2024年第5期9卷 26-29页

作者： guo Xixian 不详

On September 14,1987,the first email from China reached Germany with the text:"Across the Great Wall,we can reach every corner in the world."Nearly four decades later,compilations of the entirety of human knowledge can be accessed in minutes with a ubiquitous *** internet technology matures,the education sector has broken through the limitations of time and space to develop towards providing more equitable and higher quality education and allowing for lifelong learning opportunities.

关键词： education email limitations

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基于坐标注意力关系网络的小样本轴承故障诊断

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四川大学学报（自然科学版） 2024年第4期61卷 332-340页

作者：郭敏陈鹏周超胡国宾范青荣武汉理工大学机电工程学院武汉430070 华中科技大学机械科学与工程学院武汉430074

轴承故障诊断对保障机械设备正常运转具有重要价值,基于机器学习的轴承故障诊断是其中一类常用方法,主要包括Alexnet、Resnet-18、关系网络、基于通道注意力SENet的关系网络(SERN)以及基于混合注意力CBAM的关系网络(CBRN)等.在实际应用... 详细信息

轴承故障诊断对保障机械设备正常运转具有重要价值,基于机器学习的轴承故障诊断是其中一类常用方法,主要包括Alexnet、Resnet-18、关系网络、基于通道注意力SENet的关系网络(SERN)以及基于混合注意力CBAM的关系网络(CBRN)等.在实际应用中,小样本、变工况等可能导致这些方法出现泛化性能差、精度降低及过拟合等问题.本文提出了一种基于坐标注意力关系网络的小样本轴承故障诊断方法 .在该方法中,坐标注意力关系网络通过坐标信息的嵌入和坐标注意力的生成来解决关系网络模型无法建立特征图的长距离依赖关系及故障的特征位置信息难以获得的问题,增强模型在目标区域对故障特征的表达,进而重构出更具判别性的故障样本特征.该方法还采用特征嵌入模块来生成样本的特征向量,并通过对已标记样本和未标记样本的特征向量的拼接来生成特征向量组.最后,该方法利用关系得分模块对特征向量组进行非线性距离度量和生成关系得分,判断未标记样本的类别、实现故障分类.模拟实验表明,相比已有方法,该方法具有更好的分类能力.

关键词：小样本学习关系网络故障诊断坐标注意力机制轴承

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THE ETERNITY OF TRUE FRIENDSHIP EXCLUSIVE INTERVIEW WITH CHINESE AMBASSADOR TO MALAYSIA OUYANG YUJING

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China Report ASEAN 2024年第6期9卷 16-19页

作者： guo Xixian 不详

China and Malaysia established diplomatic ties fifty years *** the past half-century,the bilateral relationship has made great progress in various fields,delivering tangible benefits to the people of the two countries... 详细信息

关键词： TRUE peace AMBA

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Durian Time Ripe opportunity to export Malaysian durians to China

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China Report ASEAN 2024年第6期9卷 22-24页

作者： guo Xixian 不详

Relentlessly high temperatures sweep across Malaysia to signal the arrival of *** a survival crisis,durian trees are eager to reproduce,and they blossom hastily,with white flowers quickly drooping *** than 100 days later,durian fruits featuring spiky exteriors and creamy flesh become ripe and fall from the trees,emitting a uniquely captivating *** marks the arrival of durian season.

关键词： flowers Malaysia exterior

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毕达哥拉斯犹豫模糊集多属性决策研究

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系统工程与电子技术 2024年第3期46卷 982-991页

作者：关欣刘赢海军航空大学山东烟台264000

针对属性间相互关联,评价信息为毕达哥拉斯犹豫模糊信息的多属性决策问题,首先通过研究犹豫度对决策结果的影响,提出一种新的毕达哥拉斯犹豫模糊集得分函数,解决了现有得分函数中存在的不足。其次,提出一种最小公倍数规范化原则,解决了... 详细信息

针对属性间相互关联,评价信息为毕达哥拉斯犹豫模糊信息的多属性决策问题,首先通过研究犹豫度对决策结果的影响,提出一种新的毕达哥拉斯犹豫模糊集得分函数,解决了现有得分函数中存在的不足。其次,提出一种最小公倍数规范化原则,解决了现有方法容易引入误差的缺陷。最后,针对属性关联的多属性决策问题,基于λ-模糊测度与Choquet积分,提出了一种拓展交互式多准则决策(interative multi-criteria decision-making,TODIM)方法,既解决了属性关联的问题,又通过前景理论反映了决策者的心理行为特征。实例分析与敏感性分析验证了所提算法的正确性与有效性。

关键词：毕达哥拉斯犹豫模糊集得分函数最小公倍数规范化原则属性关联交互式多准则决策方法

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Controlling the Si/C ratio in SiC matrix based on the modified polymethysilane for C/C-SiC composites with enhanced mechanical properties

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Journal of Advanced Ceramics 2024年第2期13卷 220-236页

作者： Mingdong Liao Xiebo Hu Chenghao Zhong Ping Xu Xiaodong Wang Ze Zhang Peng zhou Mingyu Zhang Zhean Su Qizhong Huang National Key Laboratory of Science and Technology on High-Strength Structural Materials Central South UniversityChangsha 410083China

Fabricating SiC matrix with controllable Si/C ratio for C/C-SiC composites via precursor infiltration and pyrolysis is difficult to realize due to the absence of suitable ***,SiC precursors with Si-rich(Si/C=1.23),nearstoichiometric(Si/C=1.01),and C-rich(Si/C=0.88)pyrolyzed ceramics at 1200℃ were successfully synthesized by the novel modification of *** structure and ceramization of synthesized SiC precursors were studied,and C/C-SiC composites with similar Si/C ratio in SiC matrix were also *** results revealed that the defects and Young’s modulus of SiC matrix and the thermal residual stress on pyrolytic carbon coated carbon fiber were determined by the Si/C *** a result,the Si/C ratio exerted significant effects on the crack deflection behavior and the mechanical properties of the *** composites with near-stoichiometric SiC matrix showed excellent mechanical properties because of the effective crack deflection and the moderate Young’s modulus of their SiC *** flexural strength,flexural modulus,and compressive strength were 423±27 MPa,33.41±4.52 GPa,and 393±8 MPa,***,after a heat treatment at 1600℃,the role of carbon fiber toughening was improved and accompanied by a decrease in mechanical properties for all composites,which was attributed to the increased defects in SiC matrix and the damaged interfaces by the thermal residual stress.

关键词： SiC precursor Si/C ratio polymethysilane C/C–SiC composites mechanical properties

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载药型硅基水凝胶角膜接触镜的研究进展

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高分子通报 2024年第5期37卷 571-581页

作者：郭雪芳孙莹张雪勤东南大学化学化工学院南京211189

载药型角膜接触镜可以有效延长药物释放时间,提高药物的生物利用度,是一种较为理想的眼部给药方式。目前,在视力矫正领域,硅基水凝胶角膜接触镜因其具有高透氧和较低含水率的优点,已逐渐替代传统水凝胶角膜接触镜,被广泛使用,在眼科治... 详细信息

载药型角膜接触镜可以有效延长药物释放时间,提高药物的生物利用度,是一种较为理想的眼部给药方式。目前,在视力矫正领域,硅基水凝胶角膜接触镜因其具有高透氧和较低含水率的优点,已逐渐替代传统水凝胶角膜接触镜,被广泛使用,在眼科治疗及预防领域具有广阔的应用前景。本综述重点总结了近几年载药型硅基水凝胶角膜接触镜的研究进展,根据不同的载药方式对硅基水凝胶的基底结构、药物种类、药物释放机理等方面进行了详细分析,并对其发展前景进行展望。

关键词：硅基水凝胶角膜接触镜载药方式药物缓释机理

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