positi相关论文
Aeolian sand landforms in the Yarlung Zangbo River valley can be divided into 4 classes and 21 types. The river valley h......
The effects of Sn and Ga additions on the glass forming ability(GFA)of(Al86La5Ni9)100 xSnx(x=0,0.2,0.3,0.5,0.7,1 and 2at......
Objective To study the relationship between insulin resistance and blood pressure and blood lipid in patients with type ......
A mobile robot network is said to be easily scalable to any number of robots if its performance is keptalmost fixed aft......
AIM:In recent years,studies have suggested that Epstein-Barr virus(EBV)is associated with HCC.The present studywas to d......
The appropriate prediction of the hull deflection of a severely damaged warship is an important area in the research of......
Methods and Results Recurrent stroke prevention guidelines suggest that larger reductions in systolic blood pressure (SB......
THE COOPERATIVE BEHAVIOR OF YEAST D-GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE AS STUDIED BY THE FORMA
The ultraviolet irradiation of rite yeast D-glyceraldchyde-3-phosphate dehydrogenase carbox-ymethylated at the active s......
Preferential petroleum migration pathways and prediction of petroleum occurrence in sedimentary basi
The aim of this paper is to review the major points of contention concerning secondary petroleum migration,to discuss th......
The title complex was prepared from the reaction of NdClLi0.3 and C8H8, its crystal structure was determined by single-......
The Research on the Enhancement of Feminism in America in the Late 19th Century Through The Awakenin
The late 19 th century was a significant turning point of feminism in America. Many changes or even upheavals happened o......
A two-dimensional solid of KSbMoO5 has been synthesized by hydrothermal methods and structurally characterized by X-ray ......
为了对全球范围内的战场作战情况进行实时模拟,文章提出了一种构建战场环境仿真系统的解决方案,分别以基于视点的LOD和地形预读方......
TIDAL FRONTS AND THEIR INFLUENCE ON PRAWN POSTLARVAE IMMIGRATION IN ALBATROSS BAY, THE GULF OF CARPE
Studies of dynamics in Albatross Bay, the Gulf of Carpentaria, Australia, show strong tides of which M_2is the dominant ......
...
...
Directing to the strong position coupling problem of electro-hydraulic load simulator(EHLS),this article presents an ada......
Preliminary Research on Estrogen-like Effect of Murraya exotica( L. ) and the Chondroprotection Acti
[Objective]To study on estrogen-like effect of Murraya exotica( L.) and the chondroprotection activity. [Methods]60 rats......
Nonlinear Degenerate Parabolic Equations with Time-dependent Singular Potentials for Baouendi-Grushi
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Summer Persistence Barrier of Sea Surface Temperature Anomalies in the Central Western North Pacific
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
As the autumn gradually goes by, comments and reviews of the summer period films began to flourish. Positive ones give p......
揭示地表太阳紫外辐射对电力系统外绝缘放电特性的影响对于强紫外辐射地区外绝缘设计和运行有着重要的意义,但是目前并没有相关的......
基于已知的人类Pol Ⅱ启动子序列数据,综合选取启动子序列内容和序列信号特征,构建启动子的支持向量机分类器.分别以启动子序列的6......
卫星导航系统互用是当今全球卫星导航领域的关注热点和发展方向.由于可见星的增多,多星座互用可使位置精度衰减因子值减小,定位精......
目的 研究积极情感互动在护理临床带教中是否具有推动作用。方法 采用随机抽样法,选取护生120名分为实验组和对照组各60名。实验组......
Large pressure equipment needs to be tested regularly to ensure safe operation;wall-climbing robots can carry the necess......
新生代员工的频繁离职不仅给企业带来不良影响[1],也不利于其自身的职业发展。以新生代员工作为研究对象,用模糊集定性比较分析的......
音圈电机是一种不需要任何机械传动环节,就可以将电能转化为直线运动机械能的直线电机。由于具有结构简单、体积小、响应速度快、......
目的研究齐拉西酮针剂对急性精神分裂症患者的临床效果。方法选取2017年12月~2019年12月营口市第四人民医院治疗的120位急性精神分......
大学生创业基础课程是面向高校本专科学生设置的创业教育课程。由于现行课程教学目标存在定位偏高、重点目标不明确、部分目标任务......
在全面建设小康社会中,突出的问题是"三农问题",而农业基础脆弱和水资源总量不足、时空分布不均又是发展农村经济、提高农业生产效率......
随着电力系统的不断发展,长距离的高压电缆线路应用越来越多.电缆安全可靠的运行,是对居民生活、工业生产的重要保障.电力电缆工频......
文中针对齿轮五杆机构的位置误差方面的问题提出了一种全微分法,并对其进行了分析,通过对机构位置方程组求全微分得到其误差方程组......
为了更好地说明目前在定位系统中常用的移动位置服务系统,采用软件设计的方法,对LBS体系结构的框架进行了分析,按照LBS系统体系要......
OnReducedVariationalEquationsofCoupledSystemsZengXianwu,DuNailinDepartmentofMathematics,WuhanUniversity,Wuhan430072,ChinaChen.........
精准定位和稳定控制是实现水下机器人自主导航的关键。水下作业环境复杂性多变,当前导航定位方法进行水下机器人运动轨迹跟踪控制,......
本文在Banach空间中讨论二阶非线性微分方程的三点边值问题:-u"=a(t)f(u),u(0)=θ,u(1)=cu(ξ).运用严格集压缩算子的不动点定理,......
轧机液压伺服位置控制系统,常常因外界环境变化等而发生参数改变,使轧机液压位置控制系统变为不确定性系统,给系统控制设计带来较大困......
基于高职教育英语教学的现状,阐述了专业英语在高职英语教学中的发展趋势和所面临的问题,从提高认识、分级教学、改善师资队伍等几......
利用锥拉伸与锥压缩不动点定理讨论了一类非线性四阶p-Laplacian算子方程正解的存在性与多解性,得到了新的结果.......
本文研究非线性m点边值问题u″(t)+a(t)f(u)=0,t∈(0,1)u′(0)=0,u(1)=^m-2∑i=1αiu(ξi)正解的存在性.利用Leray-Schauder不动点......
针对基于机器视觉的气门摇臂安装位置检测中的高实时性图像处理要求,提出了一种基于游程的快速Blob分析算法.通过使用游程链表和动态......
烟蚜茧蜂是蚜虫的主要天敌,但其控制作用又受到重寄生蜂的影响。我们在烟株封顶后将其分为上、中、下3个部位,对不同部位重寄生率进......
将基于BP网络的PID控制方法用于气动位置比例系统的控制,设计实现了用微机控制的比例阀-无杆气缸缓冲定位系统,实验表明,该控制方法具......
控制技术向集成化、柔性化、智能化、无人化发展进一步推动了电火花技术的迅速发展。在此技术基础之上,文中设计开发了一种基于数......
孤岛检测是光伏发电系统必需的功能,既要快速的检测出孤岛效应,同时也要减少不良的影响。本文分析有源孤岛检测方法和无源孤岛检测......
文章研究在西部地区推广清洁发展机制(CDM)项目,促进西部地区项目融资问题.内容包括:清洁发展机制(CDM)简介,国际、国内CDM规则介......
目的探讨无创正压通气治疗老年急性心肌梗死并发急性肺水肿的疗效。方法55例老年急性心肌梗死并发急性肺水肿患者,在常规治疗无效的......
为确定长大隧道火灾纵向疏散救援通道正压送风策略,对虹梅南路-金海路通道区段进行数值模拟研究。根据送风方式、开启逃生楼梯间个......