检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

基于挖掘技术的电力营销客户档案数字化管理

微型电脑应用 2024年第3期40卷 217-220页

作者：苏海军刘晓焜侯应龙李晓明王治国张敏国网甘肃省电力公司市场营销事业部甘肃兰州730064

当前电力营销客户档案数字化管理方法档案处理能力不佳,导致电力营销客户档案类别划分存在可靠性较低,对此设计了基于数据挖掘技术的电力营销客户档案数字化管理系统。使用OCR技术完成档案数字化处理,并对处理过程中的异常进行补偿。使... 详细信息

当前电力营销客户档案数字化管理方法档案处理能力不佳,导致电力营销客户档案类别划分存在可靠性较低,对此设计了基于数据挖掘技术的电力营销客户档案数字化管理系统。使用OCR技术完成档案数字化处理,并对处理过程中的异常进行补偿。使用灰色聚类技术,控制数字档案质量。选用贝叶斯分类方法,对数字档案中的信息进行分类处理。完成基于数据挖掘技术的电力营销客户档案数字化管理方法设计。构建实验环节,对此方法的应用效果加以分析。多轮实验结果表明,此方法可有效提升档案数字化处理质量以及数字档案类别划分可靠性。在现有档案管理水平条件下,实现了高品数据划分与采集,对各类营销数据使用效果一致性较好。

关键词：数据挖掘技术电力营销档案管理数字化管理 B/C架构

DRG支付下子宫腔内病变手术患者住院费用影响因素分析

在线全文

学校读者我要写书评

暂无评论

协和医学杂志 2024年第5期15卷 1069-1076页

作者：王宇彤朱卫国孙学勤仝佳丽周婧雅赵青李博诚张维刘晓坤董蕊谢忱韩丁中国医学院科学院北京协和医院医疗保险管理处北京100730 中国医学院科学院北京协和医院妇产科北京100730 中国医学院科学院北京协和医院病案科&WHO国际分类家族中国合作中心北京100730 中国医学院科学院北京协和医院院长办公室北京100730

目的以子宫腔内病变手术组(疾病诊断相关分组编码为NE19)为切入点,分析影响患者住院费用的因素。方法本研究为回顾性横断面研究,资料来源于北京市某公立综合性三甲医院2022年3月15日—2023年11月30日所有入组NE19的患者病案首页信息。... 详细信息

目的以子宫腔内病变手术组(疾病诊断相关分组编码为NE19)为切入点,分析影响患者住院费用的因素。方法本研究为回顾性横断面研究,资料来源于北京市某公立综合性三甲医院2022年3月15日—2023年11月30日所有入组NE19的患者病案首页信息。以住院费用为因变量,患者基本信息、治疗信息和重点关注因素作为自变量进行影响因素筛选和多重线性回归分析。在此基础上,结合临床实践情况,分析包含重点因素病历的盈亏状况及住院费用结构指标间的差异。结果共纳入2213份有效病历(均为女性患者),患者以45岁以下中青年女性为主(72.12%),日间手术病历931份(42.07%);诊断中包含子宫多发肌瘤的病历334份(15.09%),包含盆腔粘连的病历246份(11.12%);涉及卵巢、输卵管相关手术或操作的病历150份(6.78%),主要操作为腹腔镜子宫病损切除术的病历160份(7.23%),使用经宫腔镜子宫异常组织机械旋切术的病历38份(1.72%)。线性回归分析显示,是否涉及卵巢和输卵管相关手术或操作(βi=0.30)、主要操作是否为腹腔镜子宫病损切除术(βi=0.30)及是否采用经宫腔镜子宫异常组织机械旋切术(βi=0.20)对住院费用的影响较大。在对重点因素的分析中,涉及卵巢和输卵管相关手术或操作、主要操作为腹腔镜子宫病损切除术、子宫多发肌瘤、盆腔粘连的病历出现亏损的比例更高(P均<0.05),且“是否使用经宫腔镜子宫异常组织机械旋切术”和“是否为日间手术”对住院费用的多项结构指标有显著影响(P均<0.05)。结论本研究所在医院NE19组亏损率较高,患者病情严重程度、新技术的使用等因素均可影响住院费用,提示现有疾病诊断相关分组方案尚存在进一步优化空间,可对不同层级医疗机构建立分层支付标准,健全优化除外机制,推动新技术的顺利开展。医院内部应鼓励开展日间手术,以进一步提升医疗服务效率。

关键词：疾病诊断相关分组住院费用子宫腔内病变手术影响因素

The Future of Printing Digitization——Presentation in the International Forum for the Development of Printing Technology

在线全文

学校读者我要写书评

暂无评论

印刷工业 2007年第5期 110-112页

作者： xiaokun liu President of Beijing Founder Electronics

After the introduction from our foreign guests of their technologies and ideas in printing digitization, I want to take this chance to introduce Founder’s ideas for the printing industry. Beijing Founder Electronics.... 详细信息

关键词：印刷工业

The structure of the compound eyes and phototaxis in two phenotypes of the bean pest Callosobruchus maculatus(Coleoptera:Bruchinae)

在线全文

学校读者我要写书评

暂无评论

动物分类学报:英文版 2023年第3期48卷 193-205页

作者： Zhong Du Tianhao Zhang Fengming Wu Zulong Liang xiaokun liu Muinde Jacob Weili Fan Lei Jiang Lijie Zhang Siqin Ge Guohong Wang College of Life Sciences Fujian Normal UniversityProvincial University Key Laboratory of Cellular Stress Response and Metabolic RegulationCollege of Life SciencesFuzhou 350108China Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China Science and Technical Research Center of China Customs Beijing 100026China University of Chinese Academy of Sciences Beijing 100049China

Callosobruchus maculatus(Fabricius,1775)(Coleoptera:Bruchinae)is a destructive agricultural pest that is harmful to beans worldwide and an important quarantine pest in *** was divided into two phenotypes based on polyphenism:normal and flight *** this study,we first compared the morphological structures of the compound eyes of the two *** to the results of scanning electron microscopy(SEM),transmission electron microscopy(TEM),microcomputed tomography(micro-CT),and computer three-dimensional reconstruction,there are no differences in the structures of the compound eyes between the normal and flight forms except for the number of *** the internal structure,the compound eyes have a biconvex cornea with open rhabdom and acone eye,crystalline cone directly connected with rhabdom,and no clear *** is a kind of apposition *** facets range in shape from quadrilateral to hexagonal and some irregular *** electroretinograms(ERGs),the normal and flight forms showed different spectral sensitivities:the normal form had the strongest response to ultraviolet light,whereas the flight form had the strongest response to white *** assays revealed that the normal and flight forms showed completely opposite phototaxis behaviors;the flight form exhibited positive phototaxis,whereas the normal form exhibited negative *** study not only enriches our knowledge on coleopteran compound eyes but also provides a foundation for in-depth research on the photoreceptor mechanisms of compound eyes,which may be useful in pest control management.

关键词： Polyphenism cowpea weevil morphology photopreference electroretinogram

EFFECTS OF WAVEFORM AND FREQUENCY OF CYCLIC LOADING ON CORROSION FATIGUE CRACK PROPAGATION FOR GC－4 STEEL IN 3．5％NaCl SOLUTION

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 1994年第1期7卷 67-76页

作者： Lu Minxu liu xiaokun Wang JianJiin Fu Xiangping Zheng Xiulin(Faculty 401,Northwestern Polytechnical University,Xi’an,China,710072)

Abstract Experimental investigations were carried out of the effects of waveforms includingtriangular, positive sawtooth,negative sawtooth,square and negative Pulse) and frequen-cics including l,5 and 20Hz) of cyclic loading on the fatigue crack propagation fFCPj forGC-4 (40CrMnSiMoVA) steel in neutral 3.5% NaCI *** results show thatwaveform and frequency have great effect on FCP rates of GC4 steel in 3.5% NaCl ***,test results also show that the static stress corrosion cracking(SSCC)anddynamic stress corrosion cracking (DSCC) can occur simultaneously in the corrosion fatigue ICF) process and that the DSCC may be able to occur at K(max)<*** on theexperimental results and the analysis in this study,a modified process competition modelwas presumably proposed, which can reasonably explain the test results obtained in thisstudy.

关键词： NaCl SOLUTION CORROSION AND GC

In-situ Horizontal Extrusion Test of Herbaceous Root-Soil with Different Root Types

在线全文

学校读者我要写书评

暂无评论

Journal of Earth Science 2024年第3期35卷 918-928页

作者： Fangcui liu Shengwen Qi Shenglin Qi xiaokun Hou Yanrong Li Guangming Luo Lei Xue Xueliang Wang Juanjuan Sun Songfeng Guo Bowen Zheng Key Laboratory of Shale Gas and Geoengineering Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China Innovation Academy for Earth Sciences Chinese Academy of SciencesBeijing 100029China China-Pakistan Joint Research Center on Earth Sciences CAS-HECIslamabad 45320Pakistan Government Affairs Service Center of Beijing Municipal Water Affairs Bureau Beijing 100073China Department of Earth Sciences and Engineering Taiyuan University of TechnologyTaiyuan 030024China

The influence of different types of roots on the soil is complex and still remains *** in-situ extrusion tests were conducted on two types of root systems,namely fibrous and tap root system,for three plants,Eleusine indica,Potentilla anserine,and Artemisia argyi,according to the classification in Botany,and the thrust-displacement curves and failure patterns of different samples were analysed by comparison to fill the aforementioned *** reveal that the roots can reduce the characteristics of soil brittleness and enhance its capability to resist large deformation,and different root types contribute different effects to the strain-hardening behavior of the root-soil *** contribution of the fibrous root system to strength is limited,whilst the tap root system substantially enhances strength and *** of failure patterns show that fibrous and tap root systems affect soil solidification and surface cracking ***,the effect of the tap root system depends on the composition of lateral and tap roots:long and rich lateral roots are effective for resisting the creation of cracks,but thick tap roots with few and thin lateral roots may lead to several surface cracks.

关键词： root types fibrous root tap root in-situ horizontal extrusion test root-soil cracks slope protection.

在线全文

学校读者我要写书评

暂无评论

两挡变速器换挡过程最优控制的伪谱法求解

汽车工程 2021年第3期43卷 364-373,386页

作者：刘晓坤赵鑫鑫北京科技大学机械工程学院北京100083

随着新能源汽车的发展,采用多挡位变速器在保证车辆动力性的前提下,可以提高电机效率。为了减小换挡冲击,提升乘坐舒适性,需要对驱动电机和换挡电机进行协调控制。本文中以两挡变速器为研究对象,提出了一种基于Radau伪谱法的变速器换挡... 详细信息

随着新能源汽车的发展,采用多挡位变速器在保证车辆动力性的前提下,可以提高电机效率。为了减小换挡冲击,提升乘坐舒适性,需要对驱动电机和换挡电机进行协调控制。本文中以两挡变速器为研究对象,提出了一种基于Radau伪谱法的变速器换挡策略,选取冲击度和滑摩功作为两挡变速器换挡品质的评价函数,利用插值多项式对换挡过程中系统的状态变量和控制变量进行逼近,由插值多项式的导数值近似代替动力学方程中状态变量的微分值,将换挡过程的最优控制问题转换为非线性规划问题,并利用现有的非线性规划问题求解器进行求解。采用MATLAB软件对两挡变速器的换挡问题进行伪谱法求解,得到了两挡变速器换挡过程的最优控制轨迹,验证了伪谱法的有效性和优异性。

关键词：两挡变速器换挡品质伪谱法最优控制

Changes in Sediment Sources in the Southern Muddy Area of Weihai, China, Since the Late Pleistocene: A Record from Rare Earth Elements

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2024年第5期23卷 1221-1232页

作者： ZHANG Zhichao liu Jinqing YIN Ping CAO Ke FENG xiaokun WANG Shengyu College of Earth Science and Engineering Shandong University of Science and Technology State Key Laboratory of Marine Geology School of Ocean and Earth Science Tongji University Qingdao Institute of Marine Geology China Geological Survey

The small muddy areas developed in the southern Shandong Peninsula have attracted increasing attention from researchers because of complex changes in sediment sources driven by sea-level fluctuations and land-sea interactions since the late Pleistocene. This study investigates the evolution of sediment sources and their responses to environmental changes since the late Pleistocene, using core WHZK01 collected from the nearshore muddy area in southern Weihai for rare earth element(REE) analysis. In doing so, this work highlights the changing patterns of material sources and the primary control factors. The results reveal that the sedimentary deposits in core WHZK01 exhibit distinct terrestrial characteristics. Discriminant function analysis(FD) and source discrimination diagrams both suggest that the primary sources of these deposits are the Yellow River and adjacent small and medium-sized rivers, although the sources vary among different sedimentary units. Furthermore, the DU3 layer(17.82 – 25.10 m) displays typical riverine sedimentation, dominated by terrestrial detrital input, primarily from the local rivers, namely the Huanglei and Muzhu Rivers. The material in the DU2 layer(14.91 – 17.82 m) is mainly influenced by a mixture of the Qinglong and Yellow Rivers. The DU1 layer(0 – 14.91 m) is influenced by sea-level changes during the Holocene, with the Yellow River being the primary source, although there is also some input from local rivers. The changes in sea level during the Holocene and the input of Yellow River material carried by the coastal currents of the Yellow Sea are identified as the main controlling factors for the changes in material sources in the study area since the late Pleistocene, with small and medium-sized rivers also exerting some influence on the material sources. The above mentioned findings not only contribute to a better understanding of the source-sink systems of the Yellow River and adjacent small and mediumsized rivers but also deepen

关键词： environmental evolution muddy area rare earth element source identification southern Weihai

Study on The Current Status and Progress of Clinical Application of Ciprofol

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Clinical and Nursing Research 2024年第6期8卷 166-170页

作者： Lihua liu xiaokun Shen West China Fourth Hospital of Sichuan University Chengdu 61000Sichuan ProvinceChina

Ciprofol,as a new type of short-acting intravenous anesthetic drug,belongs to the category of gamma-aminobutyric acid(GABA)receptor *** unique chemical structure,through the introduction of the cyclopropyl group in the isopropyl side chain of propofol,constructs a new type of chiral molecule,which significantly enhances the spatial effect,and improves the affinity for GABA *** pharmacological properties are characterized by high potency,rapid onset of action,rapid recovery,low accumulation,and minimal adverse ***,it has a wide range of applications in various endoscopic diagnostic and therapeutic operations,ICU sedation,and general *** this paper,the related knowledge of ciprofol and the development of clinical application research are comprehensively sorted out and synthesized,to provide a solid theoretical basis for the rational application of ciprofol in clinical *** the same time,the future research direction of ciprofol will also be prospected to provide valuable references for research in related fields.

关键词： Ciprofol Clinical application Application status Research progress