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BIM技术在绵泸高速铁路泸州站设计建设中的应用

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高速铁路技术 2024年第2期15卷 87-90,112页

作者：曾诚陈晓竹中铁二院工程集团有限责任公司成都610031

大中型铁路客运站是高速铁路设计和施工中的复杂节点,其建设直接影响整条线路的施工质量和进度。本文以绵泸高速铁路泸州站为例,将BIM技术运用到车站的工程设计、施工和项目管理中。结果表明:利用BIM技术完成站场内路基、桥涵、轨道、... 详细信息

大中型铁路客运站是高速铁路设计和施工中的复杂节点,其建设直接影响整条线路的施工质量和进度。本文以绵泸高速铁路泸州站为例,将BIM技术运用到车站的工程设计、施工和项目管理中。结果表明:利用BIM技术完成站场内路基、桥涵、轨道、接触网、综合管线及站房结构的系统建模,可发现结构间存在的干扰问题,及时对相关结构进行综合调整,优化站场设计,避免因站内各构筑物交叉干扰引起的设计和施工质量问题,达到在施工过程中规避风险、提升质量、缩短工期的目的。

关键词： BIM技术铁路站场设计施工项目管理

犬支气管肺泡灌洗术建立及灌洗液细胞学统计分析

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畜牧与兽医 2024年第6期56卷 72-77页

作者：陈小竹盛正尧沈嘉仪杨德吉姚大伟南京农业大学动物医学院兽医影像诊断中心江苏南京210095 南京中医药大学针灸推拿学院/养生康复学院江苏南京210023

旨在建立规范的支气管肺泡灌洗术(BAL)操作、支气管肺泡灌洗液(BALF)细胞学检测流程和健康犬BALF相关指标的参考数据,为BAL在兽医临床上的应用提供参考。本研究选择无呼吸道疾病指征的14只健康比格犬进行多次经支气管镜肺泡灌洗术,回收B... 详细信息

旨在建立规范的支气管肺泡灌洗术(BAL)操作、支气管肺泡灌洗液(BALF)细胞学检测流程和健康犬BALF相关指标的参考数据,为BAL在兽医临床上的应用提供参考。本研究选择无呼吸道疾病指征的14只健康比格犬进行多次经支气管镜肺泡灌洗术,回收BALF,统计回收率,并对其进行有核细胞总计数(TNCC)、细胞分类计数分析,通过BAL操作绘制健康犬的内镜下支气管解剖图。结果显示,98份BALF中样品合格回收率是92.1%,出血的概率为3.4%;成功采集的89份样本中,犬BALF回收率较高的肺叶为右副叶(64.5%)、左前叶后部(60.4%)、左前叶前部(57.7%),其余肺叶回收率均在40%~50%之间;BALF平均有核细胞数304.48×10~6个/L,细胞类型出现频率由高到低依次为巨噬细胞(85.9%)、淋巴细胞(13.0%)、中性粒细胞、肥大细胞、浆细胞,而上皮细胞比例受人为操作影响较大,一般在分类计数时忽略不计。本研究绘制了健康犬内镜下支气管镜解剖图,建立了兽医临床犬BAL操作流程,获得了健康犬BALF细胞学参考值,为兽医临床上犬的下呼吸道疾病的诊断和鉴别诊断提供帮助。

关键词：支气管镜支气管肺泡灌洗细胞学呼吸系统

Study of Urban and Rural Construction Land Change Based on Small Scale in Dafang

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Asian Agricultural Research 2014年第8期6卷 51-52,56页

作者： xiaozhu chen School of Information Guizhou University of Finance and Economics

This paper is to examine the urban and rural construction land data of Dafang between basic year and final year based on country scale and spatial econometrics,and analyze its spatial pattern and change feature. According to the results,the construction lands in all the villages of Dafang County showed strong spatial autocorrelation and significant spatial cluster. After the analysis of local Moran's I,the construction lands in 381 villages of 36 counties presented strong activity. The original small-scale villages were gradually enlarging,which will not only gradually benefit local development,but also be in accordance with the strategy of " one city,one district,eight parks".

关键词： Small scale Urban and rural construction land Spat

A Study on the Value Change of Land Ecosystem Services in Huangguoshu Scenic Area

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Asian Agricultural Research 2016年第5期8卷 57-60,64页

作者： xiaozhu chen School of Information Guizhou University of Finance and Economics

Land use and ecological service influence and constrain each other and the quantitative research on the value change of ecosystem services and land use in Huangguoshu scenic area can help to provide a scientific basis for the harmonious development of special ecology,society and economy in Huangguoshu scenic area. This paper analyzes the value change of land ecosystem services in Huangguoshu scenic area during 2009- 2012,and explores important issues and focus in the land planning and development of Huangguoshu scenic area. The results show that the value of woodland ecosystem services is highest in Huangguoshu scenic area,accounting for nearly 70% of the total value,and there was a slight decline in the total value of ecosystem services in Huangguoshu scenic area during the four years,mainly due to the internal restructuring of agriculture and expansion of construction land. In the future development of Huangguoshu scenic area,it is necessary to economically and intensively use construction land,pay attention to the maintenance and improvement of land ecological environment,and focus on the protection of woodland,pasture land and other types of ecological land,so as to improve the overall regional land ecosystem services.

关键词： Land use Value of ecosystem services Huangguoshu scenic area

The Land Use Change in the Scenic Area:A Case Study of Huangguoshu

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Asian Agricultural Research 2015年第8期7卷 57-59 63,63页

作者： xiaozhu chen School of Information Guizhou University of Finance and Economics

Based on information entropy theory and ecological footprint theory,we analyze the changes in land use and land ecological carrying capacity in Huangguoshu scenic area during 2009- 2012. The results show that the area of arable land and construction land was relatively increased while the area of grassland and woodland was relatively reduced in Huangguoshu scenic area during 2009- 2012,and the information entropy showed a wavy change. It indicates that the land use in the study area poses increasing pressure on the ecological environment,and there is a need to strengthen ecological protection and achieve the coordinated development of land use and ecological environment construction.

关键词： Land use Ecological carrying capacity Information

Graph convolutional network combined with random walks and graph attention network for node classification

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The Journal of China Universities of Posts and Telecommunications 2024年第3期31卷 1-14页

作者： chen Yong Xie xiaozhu Weng Wei College of Computer and Information Engineering Xiamen University of TechnologyXiamen 361024China Fujian Key Laboratory of Pattern Recognition and Image Understanding Xiamen University of TechnologyXiamen 361024China

Graph conjoint attention(CAT)network is one of the best graph convolutional networks(GCNs)frameworks,which uses a weighting mechanism to identify important neighbor ***,this weighting mechanism is learned based on static information,which means it is susceptible to noisy nodes and edges,resulting in significant *** this paper,a method is proposed to obtain context dynamically based on random walk,which allows the context-based weighting mechanism to better avoid noise ***,the proposed context-based weighting mechanism is combined with the node content-based weighting mechanism of the graph attention(GAT)network to form a model based on a mixed weighting *** model is named as the context-based and content-based graph convolutional network(CCGCN).CCGCN can better discover important neighbors,eliminate noise edges,and learn node embedding by message *** show that CCGCN achieves state-of-the-art performance on node classification tasks in multiple datasets.

关键词： graph neural network(GNN) graph convolutional network(GCN) semi-supervised classification graph analysis

Black phosphorus quantum dots as multifunctional nanozymes for tumor photothermal/catalytic synergistic therapy

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Nano Research 2022年第2期15卷 1554-1563页

作者： Hui Ding Daji Wang Haibing Huang xiaozhu chen Jie Wang Jinjie Sun Jianlin Zhang Lu Lu Beiping Miao Yanjuan Cai Kelong Fan Yongtian Lu Hongsong Dong Xiyun Yan Guohui Nie Minmin Liang Shenzhen Key Laboratory of Nanozymes and Translational Cancer Research Department of OtolaryngologyInstitute of Translational MedicineShenzhen Second Peoples Hospital/the First Affiliated Hospital of Shenzhen University Health Science CenterShenzhen 518035China Experimental Center of Advanced Materials School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China Key Laboratory of Protein and Peptide Pharmaceuticals Institute of BiophysicsChinese Academy of SciencesBeijing 100101China

Nanozymes are nanomaterials with enzyme-like properties that have attracted significant interest owing to their high stability,easy preparation,and tunable catalytic properties,especially in the field of cancer ***,the unfavorable catalytic effects of nanozymes in the acidic tumor microenvironment have limited their ***,we developed a biomimetic erythrocyte membrane-camouflaged ultrasmall black phosphorus quantum dots(BPQDs)nanozymes that simultaneously exhibited an exceptional near-infrared(NIR)photothermal property and dramatically photothermal-enhanced glucose oxidase(GOx)-like activity in the acidic tumor *** demonstrated the engineered BPQDs gave a photothermal conversion efficiency of 28.9%that could rapidly heat the tumor up to 50℃ while effectively localized into tumors via homing peptide iRGD leading after intravenously ***,the significantly enhanced GOx-like activity of BPQDs under NIR irradiation was capable of catalytical generating massive toxic reactive oxygen species via using cellular *** combining the intrinsic photothermal property and the unique photothermal-enhanced GOx-like catalytic activity,the developed BPQDs were demonstrated to be an effective therapeutic strategy for inhibiting tumor growth in *** believe that this work will provide a novel perspective for the development of nanozymes in tumor catalytic therapy.

关键词： nanozymes black phosphorus quantum dots glucose oxidase-like activity photothermal/catalytic synergistic therapy