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CAS IR Grid
机构
长春光学精密机械与物... [3]
地理科学与资源研究所 [2]
中国科学院大学 [1]
采集方式
OAI收割 [5]
iSwitch采集 [1]
内容类型
会议论文 [3]
期刊论文 [2]
SCI/SSCI论文 [1]
发表日期
2012 [1]
2010 [1]
2007 [3]
2006 [1]
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Determination of optimum process parameters in gas-assisted injection molding (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electrical Information and Mechatronics, ICEIM2011, December 23, 2011 - December 25, 2011, Jiaozuo, China
Zi K.
;
Chen L.
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
With finite element analysis software Moldflow
numerical simulation and studies about FM truck roof handle were conducted on gas-assisted injection molding process. The influences of melt pre-injection shot
gas pressure
delay time and melt temperature were observed by using multi-factor orthogonal experimental method. According to the analysis of the factors' impact on evaluation index
the optimized parameter combination is obtained. Therefore the optimization design of technological parameters is done. The results show that during the gas-assisted injection molding
optimum pre-injection shot is 94%
gas pressure is 15MPa
delay time is 0.5s
melt temperature is 240 C. This study provided a more practical approach for the gas-assisted injection molding process optimization.
Application of adaptive UKF in initial alignment of MINS/GPS integrated navigation system (EI CONFERENCE)
会议论文
OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
作者:
Gao Q.
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/03/25
In order to overcome the shortcomings of standard unscented Kalman filter (UKF)
which are obviously influenced by the error of initial value and the model error of system
adaptive UKF which is based on the adaptive principle is applied in initial alignment of the MINS/GPS integrated navigation system. Coarse alignment cannot be done by micro inertial measurement unit (MIMU) itself because of its low precision
the method of using magnetometer to assist it with coarse alignment is presented. Simulation results show that the adaptive UKF can overcome the influences of initial values error and inaccurate system model
and improve the convergence speed and alignment accuracy effectively. 2010 IEEE.
A traffic cellular automata model based on road network grids and its spatial and temporal resolution's influences on simulation
期刊论文
iSwitch采集
Simulation modelling practice and theory, 2007, 卷号: 15, 期号: 7, 页码: 864-878
作者:
Sun, Tengda
;
Wang, Jinfeng
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2019/05/10
Microscopic traffic simulation
Cellular automata
Road network grids
Spatial resolution
Temporal resolution
Influences on simulation
A traffic cellular automata model based on road network grids and its spatial and temporal resolution's influences on simulation
SCI/SSCI论文
OAI收割
2007
Sun T.
;
Wang J. F.
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2012/06/08
microscopic traffic simulation
cellular automata
road network grids
spatial resolution
temporal resolution
influences on simulation
highway
A traffic cellular automata model based on road network grids and its spatial and temporal resolution's influences on simulation
期刊论文
OAI收割
SIMULATION MODELLING PRACTICE AND THEORY, 2007, 卷号: 15, 期号: 7, 页码: 864-878
Sun Tengda(孙腾达)
;
Wang Jinfeng
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2011/11/26
microscopic traffic simulation
cellular automata
road network grids
spatial resolution
temporal resolution
influences on simulation
HIGHWAY
Active pixel sensor geometrical characteristic effects on star image subdivided locating accuracy for star tracker (EI CONFERENCE)
会议论文
OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Liu J.
;
Liu J.
;
Liu J.
;
Li J.
;
Li J.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
Active pixel sensor (APS) star tracker becomes an investigated hotspot because of its technical advantages. And centroid algorithm is a subpixel method proper to star position calculation because of its high accuracy and simplicity. When centroid algorithm is applied on APS star tracker
APS pixel geometrical characteristics might effect on star image position accuracy. Because the amplifier circuit and other function circuits inter pixel of APS take up some pixel area
the Fill Factor is less than 100%. Moreover
the active sensitive area has a certain geometrical shape
such as square
rectangle and L shape. The Fill Factor of pixel influences on star image subdivided locating accuracy when using centioid algorithm. In this paper
we have analyzed all pixel geometrical characteristics influence on the star position accuracy. From simulation experiments
we can conclude that Fill factor and pixel geometric shape influence on star position accuracy. The star locating error increased when Fill Factor decreased
and different geometrical shape of active sensitive area of pixel can make different influence on star location accuracy
the symmetrical sensitive area in x or y axis have symmetrical location error in the same axis.