Reduced prices for cd4 and viral load machines and tests , which would allow them to be placed in national and district hospitals 二)降低cd4水平及病毒数量测试的价格,让国家及地区的医院有能力负担。
Besides the usual crane systems , continuous use under water in the loading machine is the particular technical challenge that the measuring apparatus has to meet 除常用起重系统以外,在装载机中不间断水下测量对于测量仪器来说是个特殊的技术挑战。
By studying the vibration signal characteristics in periodic loading machine system , vibration signal model including state equation and observed equation was constructed 通过研究周期性负载机械系统振动信号的特点,构造了包括状态方程和观测方程的振动信号模型。
The improving problem of hydraulic pressure change direction system of loading machine was disscussed . the ten tative ideas of utilizing limited pressure change direction system were put forward 探讨了装载机液压转向系统的改进问题,提出了采用限压式液压转向系统的设想。
The voltage is manually regulated by non - load machine switch , which is apt to be burnt . as a result , frequent fixing is inevitable ; moreover , these methods of controlling cannot meet the needs of processing certain work pieces 电压调节通过人工转换无载分接开关机械触点实现,造成无载分接开关容易烧坏,维修频繁,并且温度波动大,有时不能满足某些工件的加工要求。
Compared with the performance of the two models , this paper selects the fit one for loading machine fault diagnosis . finally it designs and implements a software system named loading machine fault diagnosis system , its function includes data collection 、 signal preprocess 、 fault extraction 、 fault diagnosis 、 neural network training 、 knowledge management and user management 在此基础上,论文设计并实现了装载机故障诊断系统,其功能主要包括:数据采集、信号预处理、故障特征提取、故障诊断、神经网络训练、知识库管理和用户管理。
In the approach , non - load machine switch is replaced by scr controlled by mpu to regulate the temperature . this control precision is greatly improved , and at the same time parameters can be automatically stored and displayed during the manufacturing process , it also included some other auxiliary controlling functions , such as over - temperature alarm , work piece input or output reminding , etc . the fuzzy pid control algorithm consists of fuzzy control and digital pid adjustment 针对盐浴变压器只能进行无载分接、有级调节的问题,本方案采取在变压器原边串接晶闸管的方法,将手动转换的温度控制,即无载分接开关机械触点调节电压改为单片机自动控制晶闸管的导通,将手动控制温度改为模糊pid控制,从而提高了控制精度,降低了工人劳动强度。
Based on previous heuristic scheduling algorithms , multi - object scheduling of time and resource costs is implemented by introducing the conception of resource costs into the net , considering time and resource costs synthetically in the process . by tracing the virtual costs of machines in the algorithm , the using costs of those heavy load machines are increased dynamically and their chances of being used again are reduced , which results in a relative balance of machines loads in the scheduling result 在前人启发式调度算法的基础上,通过在网中引入资源成本的概念,在算法的执行过程中综合考虑时间成本和资源成本,实现了资源成本与时间成本的多目标调度;通过在算法中对各机器虚成本的跟踪,动态增加当前系统中负载较大机器的使用成本,降低其再被使用的机会,使得调度结果中的各机器负载能相对均衡。
This paper research on loading machine fault diagnosis based on neural network . its purpose is to promote the high - tech content and market competition ability of loading machine through loading machine fault diagnosis using loading machine signal process 、 fault feature extraction and neural network . this paper begins with the analyzing of existing methods for fault diagnosis and their advantages and disadvantages 本文研究基于神经网络的装载机故障诊断的问题,其目的就是通过装载机信号处理,提取装载机现场工作信息中的故障特征,由神经网络模型来诊断装载机故障,以此增加装载机技术含量,提高其市场竞争力。
The construction includes 31 buildings , including administration building , maintenance factory , wheel - cutting factory , signals and telecommunication facility control room , machinery and electricity equipment factory , etc . furthermore , there are also several kinds of equipments facility : such as , oil tank , gasoline station , automobile - washing factory , way dregs storage area , way dregs loading machine shelter , water discharge channel , wasted water pipe line and scenic spots facility , etc 工程内容包含有31栋建筑物如行政综合大楼检验修理厂车轮镞削厂号志及通讯设备机房机电与工务设备厂等。另有各项设备施如:油槽加油站洗车厂道渣储存区,道渣装卸机棚排水沟渠污水管线景观设施等。