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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
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
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
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
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.