中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共4条，第1-4条

帮助

条数/页：排序方式：
	SARS-CoV-2 envelope protein-derived extracellular vesicles act as potential media for viral spillover 期刊论文 OAI收割 JOURNAL OF MEDICAL VIROLOGY, 2024, 卷号: 96, 期号: 7, 页码: 11 作者: Li, Shuangqu; Bu, Jiwen; Pan, Xiaoyan; Li, Qiguang; Zuo, Xiaoli \| 收藏 \| 浏览/下载：19/0 \| 提交时间：2024/09/26 cellular signal transduction coronavirus cytokine/chemokine immune responses research and analysis methods virus classification
	Pre-process technique study of a high performance remote image sensor structural Finite Element Analysis (EI CONFERENCE) 会议论文 OAI收割 2010 2nd International Conference on Computer Engineering and Technology, ICCET 2010, April 16, 2010 - April 18, 2010, Chengdu, China 作者: Zhang L.; Xu Y.-S.; Zhang L. 收藏 \| 浏览/下载：28/0 \| 提交时间：2013/03/25 High precision structural Finite Element Analysis (FEA) results are required in the development of a remote image sensor. HperMesh and MSC. Nastran are employed in the image sensor structural FEA. This paper discusses some technical issues about the Finite Element (FE) modeling of the image sensor. In order to obtain authentic analysis results the part-to-whole handling schema i.e. handling method and research work is implemented in a small part of the model firstly and a revised method is used in the whole structural in succession has been proposed. Some emphasis is mainly put on the FE handling of bolted joint bearing and inter-element connection. The interface handling methods such as CBEAM plus partial MPC bolted joint model hybrid element bearing model and RBE3 beam-to-solid connection have been produced and successfully implemented in the image sensor structural FEA. 2010 IEEE.
	Optimal design of strap-down inertial navigation support under random loads (EI CONFERENCE) 会议论文 OAI收割 2010 IEEE International Conference on Information and Automation, ICIA 2010, June 20, 2010 - June 23, 2010, Harbin, Heilongjiang, China 作者: Li M. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 In order to realize miniaturization and light weight of the strap-down inertial navigation system and then to make sure that it works well under random loads optimal design is applied to the strap-down inertial navigation support with the methods of topology optimization and size optimization. Firstly based on the installation requirement of devices and connection requirement of the support and the carrier the initial structure of the support is designed. Topology optimization with FEA software ANSYS is adopted on the initial structure to get the basic one. Then 5 critical sizes are chosen as design variables and the support structure is optimized by means of size optimization to reach light weight with satisfying the requirement of dynamic stiffness. Finally random vibration analysis is applied to the initial structure. In the mean time random vibration test is carried out to qualify the analysis method. After the qualification a random vibration analysis is applied to the optimized support structure to get the rms of displacement response and acceleration response of the support to validate whether the optimized structure is appropriate. The results indicate that the dynamic stiffness of the optimized support structure satisfies the design requirements and its weight is lighter 49.38% than that of the initial one. This research can be a reference to the structure design of supports under random loads and the result has been applied to the development and manufacture of a prototype aerocraft. 2010 IEEE.
	Qualitative determination of the components of textile products using near infrared spectroscopy (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photonics and Optoelectronics, SOPO 2010, June 19, 2010 - June 21, 2010, Chengdu, China 作者: Chen X.; Chen X.; Chen X.; Wang D. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 In the paper A total of 40 pure or two-mixed textile weaves were prepared and classification of these samples was introduced using near infrared spectroscopy (NIRS) all textile samples are selected among four classes which are Cotton-Terylene Cotton-Polyurethane Cotton and Terylene according to theirs components. Near infrared diffuse reflectance spectra of the samples were collected Mahalanobis distance was used to discriminate the samples coupled with principle components analysis (PCA) the results showed that near infrared spectroscopy could determine which class one textile weave belongs to easily comparing with traditional methods. In addition the expectation of the further research on qualitative determination of textile products by NIR technology was discussed in the end of this paper. 2010 IEEE.