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浏览/检索结果: 共9条,第1-9条 帮助

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Key Crowdsourcing Technologies for Product Design and Development 期刊论文  OAI收割
International Journal of Automation and Computing, 2019, 卷号: 16, 期号: 1, 页码: 1-15
作者:  
Xiao-Jing Niu;  Sheng-Feng Qin;  John Vines;  Rose Wong;  Hui Lu
  |  收藏  |  浏览/下载:11/0  |  提交时间:2021/02/22
Chemometric and Computational Strategies for Rational Design of Molecularly Imprinted Polymer 期刊论文  OAI收割
CURRENT ORGANIC CHEMISTRY, 2016, 卷号: 20, 期号: 4, 页码: 459-468
作者:  
Wu, X (Wu, Xi);  Huang, YP (Huang, Yan-Ping);  Liu, ZS (Liu, Zhao-Sheng)
收藏  |  浏览/下载:26/0  |  提交时间:2016/12/13
Design,Synthesis and Evaluation of Indolebutylamines as a Novel Class of Selective Dopamine D3 Receptor Ligands 会议论文  OAI收割
作者:  
Xu LL(徐丽丽);  Du P(杜鹏);  Yu KQ(于坤千);  Zhao WL(赵伟利);  Zhen XC(镇学初)
  |  收藏  |  浏览/下载:28/0  |  提交时间:2019/01/08
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.  
Evaluation of the operating range for ground-based infrared imaging tracking system (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:  
Zhang Z.-D.
收藏  |  浏览/下载:49/0  |  提交时间:2013/03/25
Ground-based infrared imaging tracking system (GIITS) is of great importance for aerial target warning and guard. The operating range is one of the key performance specifications  on the other  which should be calculated  calculate the radiation power received on the detector in order to analysis whether the output signal meets the detection requirements or not  analyzed and studied during the whole GIITS design process. The operating range is mostly influenced by a few factors  without considering the effect of the background radiation. By improving of the traditional method  including atmospheric attenuation  a new operating range calculation model of the GIITS was established based on two requirements. One is that the image size of observed target should meet the requirement of the processor signal extraction. The number of the pixel occupied by target image should be more than 9. The other is that the signal noise ratio (SNR) of the GIITS should not be less than 5 to meet the requirements of the target detection probability and spatial frequency. The SNR calculation equation in form of energy is deduced and the radiation characteristic of the observed target and background are analyzed. When evaluate the operating range of the GIITS using the new method  the performance of GIITS and feature of target and background. This paper firstly makes analysis and summarization on the definite localizations of the traditional operating range equation of the GIITS. The localizations are mainly in two aspects. On one hand  we should successively calculate two operating range values according to two requirements mentioned above and choose the minimum value as the analytic result. In the end  the dispersion of the image and the effect of image dispersion are not considered in the traditional method  an evaluation of operating range for fighter aircraft is accomplished as an example. The influence factors in every aspect on operating range were explored by the calculated result. The new operating range calculation model provides the theoretical basis for the design and applications as well as the comprehensive evaluation of a GIITS. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
Application of quantitative fault tree analysis based on fuzzy synthetic evaluation to software development for space camera (EI CONFERENCE) 会议论文  OAI收割
2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce, AIMSEC 2011, August 8, 2011 - August 10, 2011, Zhengzhou, China
作者:  
Li Y.;  Li Y.;  Li Y.;  Li Y.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
Software reliability analysis is a significant measure to guide design of software reliability. Now software fault tree method to carry on software reliability analysis is used more and more. But it can only qualitative carry on the analysis because of many reasons. For example  the scale of software is enlarging  the software architecture is getting more and more complex  the reason of software fault is very difficult to analyze  the software is difference with hardware  and it is very hard to obtain the expiration the quantitative data and so on. The space camera is extremely high to the reliable request. So the qualitative analysis is unable to satisfy the analysis request. In view of space camera characteristics  a method of fault tree analysis based on fuzzy synthetic evaluation is proposed. The results show that the new method makes software quantitative fault tree analysis possible and optimizes. It can also solve the problem of software component which is unable to quantize precisely. 2011 IEEE.  
Driving and image enhancement for CCD sensing image system (EI CONFERENCE) 会议论文  OAI收割
2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010, July 9, 2010 - July 11, 2010, Chengdu, China
Zhang M.; Ren J.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
The paper designs a driving circuit of high sensitive  wide dynamic for CCD sensing imaging system which adopts a Dalsa-made high resolution full-frame 33-mega pixels area CCD FTF5066M. Field Programmable Gate Array (FPGA) is used as the main device to accomplish the timing design of the circuits and power driver control of the sensor. By using the Correlated Double Sampling (CDS) technique  the video noise is reduced and the SNR of the system is increased. The output rate of the imaging system designed with integrated chip can reach to 1.3 frames per second through bi-channel output. We use the histogram specification to adjust the brightness of the captured image. And then use the median filtering to suppress the noise. The traditional gray mean gradient (GMG) and the objective evaluation method based on Human Visual System (HVS) used to verify the effect of image enhancement. 2010 IEEE.  
The research for EO imaging system simulation (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Optoelectronic System Design, Manufacturing, and Testings, September 9, 2007 - September 12, 2007, Beijing, China
作者:  
Wang L.-J.;  Zhang X.;  Zhang X.;  Zhang X.;  Zhang J.-P.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
knowledge-based support for object-oriented software design and synthesis: a category theoretic approach 期刊论文  OAI收割
Journal of Digital Information Management, 2007, 卷号: 5, 期号: 3, 页码: 115-122
Zheng Yujun; Xue Jinyun; Hu Qimin
  |  收藏  |  浏览/下载:24/0  |  提交时间:2011/07/01