机构

• 长春光学精密机械与物... [1]
• 生态环境研究中心 [1]

采集方式

• OAI收割 [2]

内容类型

• 会议论文 [1]
• 期刊论文 [1]

发表日期

• 2012 [1]
• 2010 [1]

学科主题

筛选

浏览/检索结果: 共2条，第1-2条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Optimization of H2O2 dosage in microwave-H2O2 process for sludge pretreatment with uniform design method 期刊论文  OAI收割 Environmental Sciences & Ecology, 2012, 卷号: 24, 期号: 12, 页码: 2060-2067 Xiao, Qingcong; Yan, Hong; Wei, Yuansong; Wang, Yawei; Zeng, Fangang; Zheng, Xiang 收藏  |  浏览/下载：21/0  |  提交时间：2014/11/28 H2O2 dosage  uniform design method  microwave  optimization  sludge pretreatment   Embedded system of time uniform based on DSP (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China 作者:  Li N.;  Liu C.-X.;  Liu C.-X.;  Chen J.;  Guo L.-H. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 We introduced a design method of DSP-based System of time uniform  which combine the GPS and the Compass to calibrate the time. The system can use UTC (Coordinated Universal Time) of the GPS or the Compass for time base  to generate absolute time and different frequency of synchronous signals. We used DSP (Digital Signal Processor) to calculate the satellite information which includes the UTC time. After getting the UCT time information  put it into the CPLD (Complex Programmable Logic Device) for correction of time delay and serialization to output. Meanwhile  we divided 1PPS (one-pulse-per-second) signal of the GPS and the Compass into 20Hz  50Hz  and 800Hz synchronous signal. And we analyzed the precision of time and frequency. To conclude  the uncertainty of system absolute time is less than 100ns  the uncertainty of system synchronous signals is less than 20ns. This system is easy and flexible for use  stable and reliable in performance. 2010 IEEE.