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Fuzzy-support vector machine geotechnical risk analysis method based on Bayesian network

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Journal of Mountain Science 2019年第8期16卷 1975-1985页

作者： LIU Yang ZHANG Jian-jing zhu chong-hao XIANG Bo WANG Dong School of Civil Engineering Southwest Jiaotong UniversityChengdu 610031China Sichuan Provincial Transport Department Highway Planning SurveyDesign and Research instituteChengdu 610041China

Machine learning method has been widely used in various geotechnical engineering risk analysis in recent years. However, the overfitting problem often occurs due to the small number of samples obtained in history. This paper proposes the FuzzySVM(support vector machine) geotechnical engineering risk analysis method based on the Bayesian network. The proposed method utilizes the fuzzy set theory to build a Bayesian network to reflect prior knowledge, and utilizes the SVM to build a Bayesian network to reflect historical samples. Then a Bayesian network for evaluation is built in Bayesian estimation method by combining prior knowledge with historical samples. Taking seismic damage evaluation of slopes as an example, the steps of the method are stated in detail. The proposed method is used to evaluate the seismic damage of 96 slopes along roads in the area affected by the Wenchuan earthquake. The evaluation results show that the method can solve the overfitting problem, which often occurs if the machine learning methods are used to evaluate risk of geotechnical engineering, and the performance of the method is much better than that of the previous machine learning methods. Moreover,the proposed method can also effectively evaluate various geotechnical engineering risks in the absence of some influencing factors.

关键词： Geotechnical evaluation Overfitting problem Bayesian network Prior knowledge Fuzzy set theory Support vector machine

Remote Sensing Image Deblurring Based on Grid Computation

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Journal of China University of Mining and Technology 2006年第4期16卷 409-412页

作者： LI Sheng-yang zhu chong-guang GE Ping-ju Institute of Remote Sensing Applications Chinese Academy of Sciences Beijing 100101 China Academy of Opto-Electronics Chinese Academy of Sciences Beijing 100080 China College of Information Science and Engineering Shandong Agricultural University Tai＇an Shandong 271018 China

In general, there is a demand for real-time processing of mass quantity remote sensing images. However, the task is not only data-intensive but also computating-intensive. Distributed processing is a hot topic in remote sensing processing and image deblurring is also one of the most important needs. In order to satisfy the demand for quick proc- essing and deblurring of mass quantity satellite images, we developed a distributed, grid computation-based platform as well as a corresponding middleware for grid computation. Both a constrained power spectrum equalization algorithm and effective block processing measures, which can avoid boundary effect, were applied during the processing. The re- sult is satisfactory since computation efficiency and visual effect were greatly improved. It can be concluded that the technology of spatial information grids is effective for mass quantity remote sensing image processing.

关键词： grid computation image deblurring power spectrum equalization remote sensing image

Synthesis, Crystal Structure and Biological Activities of 2-(4-Fluorophenyl)-2-oxo-1-(1H-1,2,4-triazol-1-yl) ethyl morpholine-4-carbodithioate

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Chemical Research in Chinese Universities 2005年第6期21卷 673-676页

作者： XU Liang-zhong zhu chong-yi YU Chen-long LI Kai SI Guo-dong College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 P. R. China

The title compound, 2-（ 4-fluorophenyl ） -2-oxo-1-（ 1H-1, 2,4-triazol-1-yl ） ethyl morpholine-4-carbodithioate, was synthesized and its structure was confirmed by means of IR, MS, 1 H NMR and elemental analysis. The single crystal structure of the title compound was determined by X-ray diffraction. The preliminary biological test showed that the synthesized compound possesses some biological activities.

关键词： 1H-1,2,4-Triazole Morpholine Crystal structure Biological activity

In-situ cation-inserted MnO_(2) with selective accelerated intercalation of individual H^(+) or Zn^(2+) ions in aqueous zinc ion batteries

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Journal of Energy Chemistry 2023年第7期82卷 88-102,I0003页

作者： Lijin Yan Baibai Liu Jiangyu Hao Yuying Han chong zhu Fuliang Liu Xuefeng Zou Yang Zhou Bin Xiang College of Chemistry and Chemical Engineering Chongqing UniversityChongqing 401331China College of Optoelectronic Engineering Chongqing UniversityChongqing 400044China Guizhou Meiling Power Co. Zunyi 563099GuizhouChina Nanjing University of Aeronautics and Astronautics Nanjing 210016JiangsuChina Guizhou Provincial Key Laboratory of Computational Nano-Material Science Guizhou Normal UniversityGuiyang 550018GuizhouChina Analytical and Testing Center of chongqing University Chongqing UniversityChongqing 401331China

The recognized energy storage mechanism of neutral aqueous zinc-manganese batteries is the co-insertion/extrusion of H^(+) and Zn^(2+) ***,modulating the kinetics of a single H^(+) or Zn^(2+) ion is scarce,which can provide meaningful insights into the energy storage mechanism of Zn ion ***,a distinctive doubly electric field in-situ induced cationic anchoring of two-dimensional layered MnO_(2) is successfully constructed to modulate the insertion/extrusion of a single H^(+) or Zn^(2+) *** a result,regulating the intercalation of different metal ions can precisely achieve the accelerated induction for the individual H^(+) or Zn^(2+) ions intercalation/***,the introduction of metal ions stabilizes the lattice distortion and alleviates the irreparable structural collapse,leading to an increase in the H^(+)/Zn^(2+) storage sites,efficiently diminishing the stagnation of the ordered structure and creating the more open channels,which is conducive to facilitating the diffusion of *** work delivers some innovative insights into pre-embedding strategies,and also serves as a precious reference for the cathode development of advanced aqueous batteries.

关键词： In-situ inductions Manganese dioxide Insertion mechanisms Zinc-ion batteries

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基于患者和居民视角的医院品牌资产评估研究

医院管理论坛 2024年第4期41卷 31-35,43页

作者：朱重璋奚庆华李赛银刘远飞赣州市人民医院

目的探索贴近医院品牌管理实践的品牌资产评估方法,以期为医院管理者提供科学的品牌管理依据和决策支持。方法在充分文献研究的基础上,编制针对患者和居民的问卷,收集其对医院品牌资产的看法和评价。通过非结构化访谈,了解患者和居民对... 详细信息

目的探索贴近医院品牌管理实践的品牌资产评估方法,以期为医院管理者提供科学的品牌管理依据和决策支持。方法在充分文献研究的基础上,编制针对患者和居民的问卷,收集其对医院品牌资产的看法和评价。通过非结构化访谈,了解患者和居民对医院品牌的认知、态度和期望。采用净推荐值(NPS)衡量患者和居民对医院的总体推荐意愿,层次分析法(AHP)确定品牌资产各维度的权重,配对样本t检验来比较两家医院在品牌资产各维度上的差异,多元回归分析探究品牌资产与医院绩效之间的关系。结果研究证实H医院在积极联想数、新媒体传播、医疗技术和综合评分高于对照医院(p<0.05),且其净推荐值、品牌资产总分高于对照医院。结论本研究探索的医院品牌资产评估方法能够客观、全面地评估医院品牌资产,为医院管理者提供科学指引,帮助其制定品牌管理策略,提升医院的品牌竞争力和市场地位。

关键词：医院品牌资产评估患者视角

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不同厂家细辛脑注射液的质量分析

实验室检测

Preparation and Properties of SiC Assembled Large Block for Blast Furnace Tuyeres

实验室检测 2024年第4期2卷 141-144页

作者：丁晓爽朱崇艳于小童赵昌军淄博市食品药品检验研究院烟台海港医院有限公司药剂科

目的为加强对细辛脑注射液的监管，保障人民的临床用药安全，故对市场现行流通使用的细辛脑注射液进行抽样检测。方法本文依照国家食品药品监督管理总局批准的国家药品标准，考察了本机构抽样的26批次细辛脑注射液的质量状况，完成了... 详细信息

目的为加强对细辛脑注射液的监管，保障人民的临床用药安全，故对市场现行流通使用的细辛脑注射液进行抽样检测。方法本文依照国家食品药品监督管理总局批准的国家药品标准，考察了本机构抽样的26批次细辛脑注射液的质量状况，完成了该品种性状、鉴别、pH值、颜色、有关物质、装量、可见异物及含量测定的项目评价。结果抽检的26批次细辛脑注射液依标准检测，各项目均符合规定。结论评价该品种整体质量较好，但考察到该品种有见光降解的性质，建议进一步优化生产、使用条件，减少曝光时长，避免杂质生成。

关键词：细辛脑注射液国家药品标准药品质量分析

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China's Refractories 2023年第4期32卷 1-7页

作者： LYU Chunjiang CHANG Cheng HUANG Yifei CAO Huiyan LI Jie zhu chong State Key Laboratory of Advanced Refractories Sinosteel Luoyang Institute of Refractories Research Co.Ltd.Luoyang471039China

A SiC assembled large block for blast furnace tuyeres was prepared using silicon carbide particles(3-1 and 1-0.088 mm)and fine powder(<0.088 mm),silicon powder(<0.088 mm),industrial carbon black(N990),microsilica,ρ-Al_(2)O_(3) powder,*** raw *** developed block was compared with a silicon nitride bonded silicon carbide brick,a self-bonded silicon carbide brick and an imported self-bonded silicon carbide block to analyze and evaluate their service *** results show that:(1)in the 0-100 mm zone,the SiC large block mainly consists ofβ-SiC and nitrides such as O'-SiAlON,β-SiAlON,α-Si_(3)N_(4),and Si_(2)N_(2)O,the bulk density is 2.68-2.70 g·cm^(-3),the apparent porosity is 14%-15%,and the material structure is uniform;(2)in the 0-100 mm zone,β-SiC nano-whiskers intercalate with nitrides;with the depth increasing,the number of flocculentβ-SiC nano-whiskers increases,while the number of nitrides decreases;when the depth reaches 150 mm or more,the main bonding phases areβ-SiC and mullite;(3)compared with the reference products,the developed SiC large block has a good basic performance,and after alkali corrosion,the mass change rate is-0.1%,which is obviously superior to the imported self-bonded silicon carbide and the homemade silicon nitride bonded silicon carbide materials.

关键词： blast furnace for iron-making tuyere silicon carbide alkali corrosion resistance

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一种新型先导式安全阀的设计

阀门 2024年第7期 846-855页

作者：胡锐朱崇涛何海涛赵承卓罗庶航天科工火箭技术有限公司湖北武汉430040

用于液体火箭动力系统的传统先导式安全阀一般由弹簧膜片式指挥阀和主阀组成,是一种全自动式被动泄压安全阀。本文根据安全阀的工作原理,将原弹簧膜片式指挥阀改为两位三通电磁阀,结合贮箱压力传感器,设计了一种主动泄压式的新型先导式... 详细信息

用于液体火箭动力系统的传统先导式安全阀一般由弹簧膜片式指挥阀和主阀组成,是一种全自动式被动泄压安全阀。本文根据安全阀的工作原理,将原弹簧膜片式指挥阀改为两位三通电磁阀,结合贮箱压力传感器,设计了一种主动泄压式的新型先导式安全阀。本文主要介绍了新型安全阀的工作原理和特性,针对新型安全阀的关键参数进行设计计算和仿真,生产出了符合动力系统要求的安全阀;并对实物产品进行试验验证,试验结果表明新型安全阀具有更小的启闭压差。

关键词：主动泄压安全阀两位三通电磁阀工作原理计算试验

2012—2022年三门峡市呼吸道细菌感染时空分布流行病学分析

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公共卫生与预防医学 2024年第4期35卷 66-69页

作者：孙瑞华魏金嫚杨平平李莉华朱冲黄河三门峡医院检验科河南三门峡472000

目的分析三门峡市2012—2022年呼吸道细菌感染的时空分布特征,探索呼吸道感染防控的重点区域。方法收集2012—2022黄河三门峡医院收治的呼吸道细菌感染病例信息,采用OpenGeoDal软件进行空间自相关分析,SaTScan软件进行时空扫描分析。... 详细信息

目的分析三门峡市2012—2022年呼吸道细菌感染的时空分布特征,探索呼吸道感染防控的重点区域。方法收集2012—2022黄河三门峡医院收治的呼吸道细菌感染病例信息,采用OpenGeoDal软件进行空间自相关分析,SaTScan软件进行时空扫描分析。结果 2012—2022年三门峡市共报告呼吸道细菌感染病例8 762例,年均发病率为173.47/10万,标化发病率为132.63/10万,发病率总体呈下降趋势(χ^(2)=48.093,P<0.01)。呼吸道细菌感染发病男性高于女性,50岁及以上人群发病率最高。全局无空间自相关,局部自相关结果显示,“高-高”聚集区主要位于义马市。时空扫描结果显示一级聚集区位于义马市,时间跨度为2020—2022年,辐射半径4.57 km(LLR=40.19,RR=3.27,P<0.001)。结论三门峡市呼吸道细菌感染总体呈下降趋势,义马市为“高-高”聚集区,为该地区的重点防控区域。

关键词：呼吸道细菌感染空间自相关分析流行病学分析