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    题名 作者 年代 出处 被引量
1抽油杆柱与油管偏磨机理及偏磨点位置预测显示文摘结合油田生产实际,对抽油杆柱与油管系统的磨损介质类型和磨损机理进行了分析,建立了抽油杆三维力学综合分析模型,利用VisualBasic6.0语言和Matlab6.0语言开发了相应的仿真分析软件系统,并进行了三维井眼轨迹对抽油杆柱受力变形的影响研究。利用该软件系统,可以确定抽油杆柱与油管严重偏磨点的位置。使用新型抗摩擦接箍,可使定向井抽油杆柱偏磨的程度大幅度下降,从而节省修井时间并提高油井寿命。杨海滨 狄勤丰 王文昌 2005石油学报2005,26,2:70
2CATIA二次开发技术研究与应用显示文摘介绍了CATIA常用的几种开发方式,重点介绍了Automation开发技术。给出了一个开发实例,帮助读者更好地理解CATIA开发过程。最后对CATIA未来开发趋势进行了讨论。周桂生 陆文龙 2010机械设计与制造2010,,1:73
3Moment-independent importance measure of basic random variable and its probability density evolution solution显示文摘To analyze the effect of basic variable on failure probability in reliability analysis,a moment-independent importance measure of the basic random variable is proposed,and its properties are analyzed and verified.Based on this work,the importance measure of the basic variable on the failure probability is compared with that on the distribution density of the response.By use of the probability density evolution method,a solution is established to solve two importance measures,which can efficiently avoid the difficulty in solving the importance measures.Some numerical examples and engineering examples are used to demonstrate the proposed importance measure on the failure probability and that on the distribution density of the response.The results show that the proposed importance measure can effectively describe the effect of the basic variable on the failure probability from the distribution density of the basic variable.Additionally,the results show that the established solution on the probability density evolution is efficient for the importance measures.CUI LiJie,Lü ZhenZhou & ZHAO XinPan School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China 2010Science China(Technological Sciences)2010,53,4:41
4《我们思考的方式》述评显示文摘G.Fauconnier M.Turner 李福印(述评) 丁研(述评) 2006当代语言学2006,8,2:31
5Invasive mechanism and management strategy of Bemisia tabaci(Gennadius) biotype B:Progress report of 973 Program on invasive alien species in China显示文摘Bemisia tabaci(Gennadius) biotype B,called a 'superbug',is one of the most harmful biotypes of this species complex worldwide.In this report,the invasive mechanism and management of B.tabaci biotype B,based on our 5-year studies,are presented.Six B.tabaci biotypes,B,Q,ZHJ1,ZHJ2,ZHJ3 and FJ1,have been identified in China.Biotype B dominates the other biotypes in many regions of the country.Genetic diversity in biotype B might be induced by host plant,geographical conditions,and/or insecticidal application.The activities of CarE(carboxylesterase) and GSTs(glutathione-S-transferase) in biotype B reared on cucumber and squash were greater than on other host plants,which might have increased its resistance to insecticides.The higher activities of detoxification enzymes in biotype B might be induced by the secondary metabolites in host plants.Higher adaptive ability of biotype B adults to adverse conditions might be linked to the expression of heat shock protein genes.The indigenous B.tabaci biotypes were displaced by the biotype B within 225 d.The asymmetric mating interactions and mutualism between biotype B and begomoviruses via its host plants speed up widespread invasion and displacement of other biotypes.B.tabaci biotype B displaced Trialeurodes vaporariorum(Westwood) after 4-7 generations under glasshouse conditions.Greater adaptive ability of the biotype B to adverse conditions and its rapid population increase might be the reasons of its successful displacement of T.vaporariorum.Greater ability of the biotype B to switch to different host plants may enrich its host plants,which might enable it to better compete with T.vaporariorum.Native predatory natural enemies possess greater ability to suppress B.tabaci under field conditions.The kairomones in the 3rd and 4th instars of biotype B may provide an important stimulus in host searching and location by its parasitoids.The present results provide useful information in explaining the mechanisms of genetic diversity,evolution and molecular eco-adaptation of biotype B.Furthermore,it provides a base for sustainable management of B.tabaci using biological and ecological measures.WAN FangHao1,ZHANG GuiFen1,LIU ShuSheng2,LUO Chen3,CHU Dong4,ZHANG YouJun4,ZANG LianSheng2,JIU Min2,Lü ZhiChuang1,CUI XuHong1,ZHANG LiPing4,ZHANG Fan3,ZHANG QingWen5,LIU WanXue1,LIANG Pei5,LEI ZhongRen1 & ZHANG YongJun1 1 State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Acadeny of Agriculture Sciences,Beijing 100094,China 2 Institute of Applied Entomology,Zhejiang University,Hangzhou 310029,China 3 Institute of Plant and Environment Protection,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100089,China 4 Institute of Vegetables and Flowers,Chinese Acadeny of Agricullare Sciences,Beijing 100081,China 5 Department of Entomology,China Agriculture University,Beijing 100094,China 2009Science China(Life Sciences)2009,52,1:30
6橘小实蝇的地理分布模型显示文摘根据橘小实蝇的致死温度和有效积温,用Access设计气候资料和地理信息数据库,用MapX和Visual Basic设计程序,建立了橘小实蝇地理分布模型.用中国670个气象站点30a的气候资料运行该模型.结果表明,橘小实蝇可在中国25%的地区发生,分布北界为(30±2)N左右,1a发生3-12代.吴宇芬 2005福建农林大学学报(自然科学版)2005,34,2:30
7基于MSComm控件实现串行通信的方法显示文摘本文论述了利用MSComm控件实现串行通信的方法,并结合一个学生成绩查询系统比较全面地描述了该方法的具体实现过程。该系统利用串口控制纸币识别器的工作,用MSComm控件实现了简单、可靠的串行通信。董红政 王忠勇 史晓鹏 2007微计算机信息2007,,27:30
8基于GPS数据采集的出租汽车交通运行特点研究显示文摘对装载GPS的出租汽车采集到的数据进行预处理和地图匹配,实现了出租汽车路径的跟踪,确定了出租汽车上下客点的位置,据此可得到反映出租汽车交通运行特点的相关数据,为出租汽车交通管理乃至城市交通管理提供了科学依据。以深圳市装载GPS的出租汽车数据为例进行分析,通过一定的数据处理方法,利用Visual Basic和ArcView的组件MapObject相结合进行编程,得到了深圳市出租汽车交通运行的特点,如出租汽车交通出行需求的空间分布、出租汽车出行距离分布、出租汽车出行时长分布等。胡小文 冯均佳 2007城市交通2007,5,2:26
9GSM网络AT指令仿真系统的研究与开发显示文摘GSM在全球范围内形成了无与伦比的规模经济,发展GSM网络日益迫切,这样发展移动终端设备热的话题。本文正是在VB编程环境中,仿真GSM无线模块中的AT指令集部分,为更好的发展GSM网络和GSM无线模块提供试验环境。汉泽西 吕飞 2005现代电子技术2005,28,17:24
10《物理化学实验》数据处理系统软件的开发及应用显示文摘本软件为高等教育出版社出版的《物理化学实验》一书配套开发,旨在解决通常的物理化学实验数据处理过程中存在的计算复杂,由于作图时不可避免的误差而影响最终实验结果等问题。它以Visual Basic 6.0为开发工具,采用最小二乘法直线拟合、非线性拟合、数值积分等方法对实验数据进行处理,能够得到更正确、更科学的真实的实验结果,并将计算结果和图形打印输出;通过链接数据库,将数据录入和数据处理相分离,便于对实验结果进行统计分析、归纳整理。本软件为处理物理化学实验数据提供了快捷、方便的方法,也为教师批改实验报告提供可靠的依据。范荫恒 高爱丽 杜洋 杨林 褚芳芳 2005计算机与应用化学2005,22,11:24
11基于SolidWorks的机械零件参数化设计显示文摘介绍了基于SolidWorks的机械零件参数化设计的两种方法;详尽阐述了用系列零件设计表生成配置和用VisualBasic调用SolidWorksAPI函数对其进行二次开发来分别实现机械零件参数化设计的基本思想和实现流程。王东 蒲小琼 2004机械制造与自动化2004,33,5:23
12用VB编写OPC客户端程序的方法显示文摘OPC为工业现场设备通信提供了标准,本文介绍了OPC技术的原理,简要介绍了如何用VisualBasic开发OPC客户端程序。刘莉 2005工业控制计算机2005,18,5:23
13Effect of intestinal ischemia-reperfusion on expressions of endogenous basic fibroblast growth factor and transforming growth factor β in lung and its relation with lung repair显示文摘AIM To study the changes of endogenoustransforming growth factor β(TGFβ)and basicfibroblast growth factor(bFGF)in lung followingintestinal ischemia and reperfusion injury andtheir effects on lung injury and repair.METHODS Sixty Wistar rats were divided intofive groups,which underwent sham-operation,ischemia(45 minutes),and reperfusion(6,24and 48 hours,respectively)after ischemia(45minutes).Immunohistochemical method wasused to observe the localization and amounts ofboth growth factors.RESULTS Positive signals of both growthfactors could be found in normal lung,mainly inalveolar cells and endothelial cells of vein.Afterischemia and reperfusion insult,expressions ofboth growth factors were increased and theiramounts at 6 hours were larger than those ofnormal control or of 24 and 48 hours after insult.CONCLUSION The endogenous bFGF and TGF βexpression appears to be up-regulated in thelung following intestinal ischemia andreperfusion,suggesting that both growth factorsmay be involved in the process of lung injury andrepair.Xiao Bing Fu Yin Hui Yang Tong Zhu Sun Xiao Man Gu Li Xian Jiang Xiao Oing Sun Zhi Yong Sheng Research Laboratory,304th Hospital of PLA,Beijing 100037,China 2000World Journal of Gastroenterology2000,6,3:21
14PLC控制教学实验系统的设计显示文摘在PLC教学的集中实践环节中,要求学生对许多对象进行编程控制,为了能直观地看到实际控制效果,使用VisualBasic设计了控制对象的仿真软件,实现了控制对象实际运行情况的计算机仿真,极大节约了教学经费。刘美兰 2004实验室研究与探索2004,23,2:21
15基于Visual Basic的SolidWorks二次开发显示文摘以SolidWorks2004为开发平台,使用VisualBasic6.0高级程序开发语言,介绍了一种三维CAD二次开发的方法,该方法对实现三维实体建模的程序化过程具有一定的参考价值。周凯旋 罗会信 2005机械制造2005,43,5:19
16基于掌上电脑(PDA)的水准测量电子手簿研究与关键技术开发显示文摘在阐述水准测量及其成果整理的基础上,本文着重探讨了基于掌上电脑(PDA)的水准测量电子手簿开发的基本原理和方法,提出了以嵌入式Visual Basic开发水准测量电子手簿的基本结构框架,同时对开发中的关键技术进行了系统研究,包括测量数据的自动化处理以及Pocket Access数据库的使用等。在此基础上,以联想天玑XP100系列掌上电脑(PDA)为例,介绍了笔者开发的基于PDA的水准测量电子手簿,通过实例阐明了其应用过程。应用结果表明,本电子手簿在测量过程中具有实用意义。周奕君 童小华 2008测绘与空间地理信息2008,31,1:18
17基于VB6.0的多方式串口通信实现显示文摘串口通信因其通信线路简单、使用灵活方便,在许多领域应用广泛。基于串口通信和MSComm控件原理,详细介绍了利用VB6.0编程实现手动和自动发送字符/数据、文本文件等多方式串口通信的方法,并给出了具体程序和解释。对VB6.0编程者的学习具有一定的启发和参考价值。侯志军 高媛媛 沙楠 2006计算机与数字工程2006,34,2:17
18非计算机专业VB教学方法研究显示文摘Visual Basic作为一门可视化的高级编程语言,已经在各高等院校作为计算机基础教育的一门主干课程,随着多媒体技术、校园网建设和互联网技术的发展,原来滞后的教学方法势必影响高校计算机基础教学的效果。本文针对非计算机专业的计算机基础教育,着重探讨在新的历史时期VisualBasic的教学方法。张爱国 2005农业网络信息2005,,5:17
19基于组件MapObjects的查询信息系统的设计与实现显示文摘讨论如何运用GIS组件MapObjects与面向对象的可视化编程语言Visual Basic 6.0相结合这一开发模式,进行应用型地理信息系统的二次开发。对系统开发方式的选择、系统总体框架、系统开发结构和系统数据库设计等作较为深入的论述。以武汉大学查询信息系统为例,具体探讨系统的设计与系统部分功能的实现。何宗宜 刘健 2007测绘通报2007,,5:16
20中国城市群形成发育与空间拓展的基本规律(英文)显示文摘Urban agglomerations are formed when a country is in the advanced stages of industrialization and urbanization. They are highly integrated groups of cities that form and develop through a natural, gradual process as the relationship between them changes from one of competition to assimilation following law of natural development. China is currently in a new stage of transitional development characterized by its New-Type Urbanization Plan. It has entered a new era in which it is a global leader in urban agglomeration development, and China’s research and development models are being imitated and adopted by countries around the world. This paper adopts a theoretical approach to propose the basic law governing the formation, development and expansion of urban agglomerations. This includes the stage-based formation and development law, multi-scale intensive-use transmission law,crystal-structure spatial composition law, egg-shaped expansion evolution law,'saplings-to-forest' natural growth law, and sustainable development incremental increase law.Guided by these law, China has created a hierarchical organizational configuration for optimizing the spatial structure of its urban agglomerations. It has also formulated urban agglomeration development plans and proposed research-based measures to resolve problems specific to urban agglomerations and to promote their sustainable development. The law governing the formation, development and expansion of urban agglomerations play an important role in guiding their development in China and will play a greater role in the future.方创琳 2019Journal of Geographical Sciences2019,29,10:16
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