The paper begins with the deep analysis of high performance receiver parameters . subsequently , the design methods are introduced about receiver high liearity and high dynamic range . then , the system scheme analysis and proof , implementation of each functional unit , some questions paid more attention in system design and debug are discussed in detail . the ultimate testing results of this subject are represented at last 本文先对高性能接收机的关键技术指标进行了深入分析，然后介绍了接收机在高线性，大动态范围实现的一些设计方法，之后详述了本课题采用的方案、具体功能指标的实现以及在设计与实现中应该注意的问题，最后给出系统的测试结果。
20 students from scnu served as the subjects , and they were randomly divided into the hyperoxia group and the control group . the venous samples were taken before exercise , just after exercise , post - exercise somin and 24h , respectively . the immune parameters included rbc - csbrr , rbc - icr , immunoglobulins ( igg , iga and igm ) 将实验对象分为吸氧组和对照组，测得两组安静时、运动即刻、恢复30分钟和恢复24小时的免疫指标的变化，包括红细胞免疫功能指标，即红细胞补体受体花环率( rbc - c _ ( 3b ) rr )和红细胞免疫复合物花环率( rbc - icr ) ；免疫球蛋白igg 、 iga 、 igm ，并对上述指标的变化趋势作了分析。
This system is exploited completely according to national standard of vehicle traveling data recorder , can implement all of the function of the national standard of vehicle traveling data recorder , including date , time , car speed , mileage , start time , stop time , driving time , over speed , overtime , alarm of over speed and overtime , status identify of ic card , and many kind of status of on - off signal , including on - off vehicle door , brake status , turn signal status , dipped headlight and high beam etc . 本系统就是完全依照汽车行驶记录仪的国家标准而开发的,目标是实现国家标准中规定的所有汽车行驶记录仪应该达到的功能指标,包括可靠记录日期、时间、车速、行驶里程、开车时刻、停车时刻、行驶时间、超速时间、超时时间、超速超时告警、 ic卡身份识别等信息和车门开关、刹车状态、方向灯状态、近/远光灯等各种开关信号的状态的功能。
So sustainable development in hvac is very essential . the paper illustrates the assessment method of sustainable development - - - - - - life cycle anylisis and outlines the states of sustainable development in the world . it presents that china sustainable development should be characteristic , and should n ' t learn form abroad completely . it describes global environment deterioration , indoor air quality concern and promotion of the intelligent technology behind the progress of air conditioning technology in recent years , interprets the principles in the advancement for harmonising comfort requirements with energy conservation and energy consumption with environment protection , presents an overall survey of the techniques for air conditioning energy efficiency , trends in energy sources for air conditioning , and development in the equipment and system 阐述了可持续发展的分析方法? ?寿命周期分析，简要介绍了国内外可持续发展的近况，提出中国必须走自己的可持续发展之路，不能全盘西化，概述了空调技术发展在全球环境，室内空气品质，智能技术发展等方面的背景，阐述了协调舒适与节能、能源利用与保护环境的技术发展原则，全面介绍了空调节能的方法、空调冷热源的发展方向和空调设备与系统的开发，对空调专业可持续发展有一定指导意义，本文运用价值分析法对暖通空调设计进行评价，功能指标有：安全可靠性、舒适性、环保性、节能性、维修性和操作性。
Subsequently , the communication of wireless is introduced as well as the key points of receiver ’ s rf front end . then , the design methods of receiver with high linearity and high dynamic range are recommended too . also , the blue print of the receiver , the achievement of function guide line and the problems in real debugging are discussed in detail 本文先介绍了当代无线电导航的状况以及发展趋势和无线电的传播,然后对接收机射频前端的关键技术指标进行了深入分析,还介绍了系统在大动态范围,高线性实现的一些设计方法,之后详述了本项目采用的方案、具体功能指标的实现以及在设计与实现中应该注意的问题,最后给出系统的测试结果。
