中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与物... [5]
心理研究所 [1]
生态环境研究中心 [1]
采集方式
OAI收割 [7]
内容类型
会议论文 [5]
学位论文 [1]
期刊论文 [1]
发表日期
2024 [1]
2011 [3]
2008 [1]
2006 [2]
学科主题
环境工程::水处理工... [1]
筛选
浏览/检索结果:
共7条,第1-7条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
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
Technoference Interacts with Parenting Practices to Predict Children's Attentional Control Indexed by Intraindividual Reaction Time Variability
期刊论文
OAI收割
JOURNAL OF CHILD AND FAMILY STUDIES, 2024, 页码: 14
作者:
Jiang, Ping
;
Yang, Xiaohui
;
Zhu, Liqi
  |  
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2024/05/21
Technoference
Parenting practice
Attentional control
Intraindividual reaction time variability
A parallel algorithm for medical images registration based on B-splines (EI CONFERENCE)
会议论文
OAI收割
4th International Congress on Image and Signal Processing, CISP 2011, October 15, 2011 - October 17, 2011, Shanghai, China
作者:
Zhang T.
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2013/03/25
Cubic B-splines is widely applied in non-rigid registration because of its approximation performance and fast computational characteristics. However
a small scale non-rigid deformation is needed to characterize by a large number of control points. Moreover
an iterative optimization strategy of the non-rigid registration algorithm and the normalized mutual information (NMI) cost a great quantity calculation. So
the process of the non-rigid registration is slowed by calculations of NMI in a iterative optimization strategy. In this paper
a parallel optimization algorithm based on cubic B-splines functions is proposed to parallelize the optimization algorithm of the nonrigid registration and the calculations of normalize mutual information. In practice
a fast algorithm of cubic B-splines is used and the control points are only distributed on the targets. Experiments show that the use of the fast algorithm and the parallel optimization strategy improves the non-rigid registration process of medical images. 2011 IEEE.
Design of control system of DC motor based on fusion FPGA (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Mechatronics and Materials Processing, ICMMP 2011, November 18, 2011 - November 20, 2011, Guangzhou, China
Zhu D. D.
;
Li H. W.
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2013/03/25
Along with the development of microelectronic process
it is possible to integrate a big system in one chip. A new way to implement system on a chip is provided by the advent of FPGA. Based on Verilog HDL and the Actel Fusion AFS600 FPGA chip
the speed closed-loop control system of DC motor was designed by using options of combining the top-down thinking and the bottom-up method. PID control algorithm
encoder signal processing and PWM waveform generation etc were realized by the system. The results show that the system structure is simplified and the stability and reliability are improved. A solution of system on a chip is realized to some extent. It has extensive application value in engineering practice. 2011 Trans Tech Publications.
Research on servo controller for high speed tracking system (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Mechatronic Systems and Automation Systems, MSAS 2011, July 23, 2011 - July 24, 2011, Xi'an, China
作者:
Li M.
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2013/03/25
To meet requirement of swiftness and minimization for the tracking system as well as realize horizontal high accuracy tracking measurement
the automatic servo tracking measurement system has been designed. The two closed loop control
bisection method and compound control have been applied into the system. Experimental results show that the maximum tracking error can be limited to less than 0.5and the regulator time can be 0.04s. The control project resonance frequency should be more than 200Hz and the sample frequency should be more than 400Hz to meet the control accuracy requirement. And these specific mechanical properties indexes are useful to mechanical working to make sure the design can be realization. So the research in this paper has important value to the engineering practice. (2011) Trans Tech Publications.
Implementation and stability analysis of the fuzzy controller based on electric-driven simulation turntable (EI CONFERENCE)
会议论文
OAI收割
ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China
Xie M.-J.
;
Wang L.-M.
;
Wang Z.-Q.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2013/03/25
Fuzzy controller was used to resolve the problem of fast tracking and overshoot in electric-driven simulation turntable
for its essence belongs to PD control In this system
the control rules of fuzzy controller were established according to the step dynamic response process
for the speed loop of this system was predigested to be second-orders system. The describing function method was adopted to analyze the stability of the fuzzy control system. It gave the information of stability of system intuitively. The fuzzy controller had been applied in this system successfully. The simulation turntable had no overshooting nearly when its step input signal was close to 90. Experimental results show the implementation method of fuzzy controller is not only simple but also effectual in engineering practice. It also provides an approach of design of fuzzy controller for motion control system. 2008 IEEE.
城市旅游区面源污染特征及工程控制技术研究 —以武汉动物园为例
学位论文
OAI收割
博士, 北京: 中国科学院研究生院, 2006
赵建伟
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2010/05/19
城市旅游区
面源污染
特征
控制技术
生态工程 urban tourist area
diffuse pollution
control practice
ecological engineering.
Development of a new diffuse near infrared food measuring (EI CONFERENCE)
会议论文
OAI收割
Sitxh International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence, October 13, 2006 - October 15, 2006, Beijing, China
作者:
Zhang J.
;
Zhang J.
;
Zhang J.
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2013/03/25
Industries from agriculture to petrochemistry have found near infrared (NIR) spectroscopic analysis useful for quality control and quantitative analysis of materials and products. The general chemical
polymer chemistry
petrochemistry
agriculture
food and textile industries are currently using NIR spectroscopic methods for analysis. In this study
we developed a new sort NIR instrument for food measuring. The instrument consists of a light source
12 filters to the prismatic part. The special part is that we use a mirror to get two beams of light. And two PbS detectors were used. One detector collected the radiation of one light beam directly and the value was set as the standard instead the standard white surface. Another light beam irradiate the sample surface
and the diffuse light was collected by another detector. The value of the two detectors was compared and the absorbency was computed. We tested the performance of the NIR instrument in determining the protein and fat content of milk powder. The calibration showed the accuracy of the instrument in practice.