儿童支气管哮喘的免疫学发病机制及药物治疗研究进展
支气管哮喘的实质是呼吸道的慢性炎症。在儿童哮喘的发展中，出现了不同类型的淋巴细胞的参加。研究发现：树突状细胞在哮喘发病机制中激活初始T细胞，启动机体免疫应答，影响T细胞分化及导致T细...
A320飞机发动机引气系统的典型故障问题研究
ABSTRACTIn this paper,the main function of the air intake system of A320 series aircraft engine is to transfercompressed air from the air supply source to different systems of airc...
直流电机转速电流双闭环调速系统设计
ABSTRACTThis paper is about the design of a speed and current double closed-loop speed controlsystem using DC motor and thyristor control technology.Firstly,it is needed to model t...
TD和GSM网络切换的可视化系统研究与实现
4.1覆盖切换概述434.1.1覆盖边界介绍.434.1.223G覆盖边界介绍.444.2场景覆盖概述….454.2.1场景的概念.4542.2覆盖的划分…。464.323G覆盖切换算法474.3.1算法原理474.3.2场景切换算法的研究…。...
中小型电机设计说明书
ABSTRACTThis paper is to design a 1.5kW,1500r/min,220V,efficiency of 78%self-ventilatedcooling,shunt dc motor.The diameter and length of armature are preliminarilydetermined accord...
基于java的社区住户信息管理系统设计与研究
AbstractAlong with our country economic development and urban developmentfaster and faster,around between population flow speed faster and faster,people's quality of life also is i...
AWC机架现场扩孔机设计(论文-DWG图纸)
AWC机架现场扩孔机设计(论文+DWG图纸)/丝杠.dwgAWC机架现场扩孔机设计(论文+DWG图纸)/中英文翻译.docAWC机架现场扩孔机设计(论文+DWG图纸)/刀座零件图.dwgAWC机架现场扩孔机设计(论文+DWG图纸)/...
LED数字显示体温计
目录摘要第一章绪论…31.1研究背景.31.2研究意义..41.3发展趋势….5第二章体温计比较与分析….62.1数字体温计与水银体温计比较….62.2数字体温计中的接触式体温计与非接触式体温计比较7第三章功...
多元统计分析在农业现代化水平评价中的应用
The Application of Multivariate Statistical Analysis in AgriculturalModernizationAbstract This thesis adopts the method of both principal component analysis and clusteranalysis to ...
高大厂房热风供暖流场温度场数值模拟
东北大学硕士学位论文AbstractThe Temperature and Flow Field Simulation of HotAir Heating for a Tall BuildingAbstractHot air heating is a new heating system.It is heat medium.Firstly...
