中国科学院机构知识库网格系统: 检索

A tetrahedral DNA nanostructure functionalized paper-based platform for ultrasensitive colorimetric mercury detection 期刊论文 OAI收割
SENSORS AND ACTUATORS B-CHEMICAL, 2022, 卷号: 362, 页码: 7
作者: Fu, Xiuli; Lin, Hao; Qi, Ji

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收藏 | 浏览/下载：36/0 | 提交时间：2022/07/26

Paper-based platform Tetrahedral DNA nanostructure Colorimetric Mercury

A tetrahedral DNA nanostructure functionalized paper-based platform for ultrasensitive colorimetric mercury detection 期刊论文 OAI收割
SENSORS AND ACTUATORS B-CHEMICAL, 2022, 卷号: 362, 页码: 7
作者: Fu, Xiuli; Lin, Hao; Qi, Ji; Li, Fengling; Chen, Yan

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收藏 | 浏览/下载：1/0 | 提交时间：2024/11/15

Paper-based platform Tetrahedral DNA nanostructure Colorimetric Mercury

A tetrahedral DNA nanostructure functionalized paper-based platform for ultrasensitive colorimetric mercury detection 期刊论文 OAI收割
SENSORS AND ACTUATORS B-CHEMICAL, 2022, 卷号: 362, 页码: 7
作者: Fu, Xiuli; Lin, Hao; Qi, Ji; Li, Fengling; Chen, Yan

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收藏 | 浏览/下载：0/0 | 提交时间：2024/11/15

Paper-based platform Tetrahedral DNA nanostructure Colorimetric Mercury

Research on satellite platform vibration compensation method based on liquid crystal steering system (EI CONFERENCE) 会议论文 OAI收割
2011 SSITE International Conference on Future Material Research and Industry Application, FMRIA 2011, December 1, 2011 - December 2, 2011, Macau, China
作者: Wen M.

收藏 | 浏览/下载：13/0 | 提交时间：2013/03/25

This paper presents the disturbance compensation scheme based on liquid crystal steering system according to the problem that satellite platform vibration affects the tracking and pointing accuracy in space optical communication. The mathematical model of liquid crystal steering system is built. For improving convergence speed the adaptive controller based on posteriori estimation errors RLS lattice filter is designed which not only achieves fast adaptation but also reaches optimal steady-state disturbance compensation. Finally the simulation results show that this control scheme is valid and feasible. (2012) Trans Tech Publications Switzerland.

Realization of auto-focusing system for cameras based on TMS320F2812 DSP (EI CONFERENCE) 会议论文 OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
作者: Zhang T.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

Focusing systems play an important role in a variety of optical measurements and detection instruments. In this paper several kinds of auto-focusing methods were described and the relevant focusing evaluation functions were introduced based on image processing methods. An auto-focusing system based on image processing was designed by using the TMS320F2812 digital signal processing chip as a platform. Moreover some problem and solutions about auto-focusing system was demonstrated. The system designed in this paper can find the good image plane in 10 steps (about 5 second) thus it can meet the requirements of practical applications. 2011 IEEE.

The design and implement of E-government information system based on knowledge management (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China
作者: Wang Y.-C.; Wang Y.-C.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

In view of existence problems in present E-government information system E-government information system based on the knowledge management was supplied in this paper. And the overall construction design proposal of Platform was given. The characteristics of knowledge management and the function of each component in the structure is analyzed. An information recommendation algorithm is designed. The management organization mining personalized recommendation of E-government information are realized. Experimental results show that the platform has good scalability with the application value. 2011 IEEE.

Simulation and experiment of the static FTIR based on micro multi-step mirrors (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China
作者: Liang Z.-Z.; Zhang J.; Zhang J.

收藏 | 浏览/下载：30/0 | 提交时间：2013/03/25

In recent years Fourier transform spectrometer (FTS) with small size and low mass is required in many applications with growing need for real-time and small platform spectral detection. In this paper a micro Fourier transform infrared spectrometer (FTIR) based on spatial modulation mode was designed. This spectrometer has the advantages of high stability and simplified configuration. It also promises optical path differences (OPD) with high precision as MOEMS technology is used in manufacturing the key components. The simulation and the experiments with regard to this FTIR configuration have been done. Firstly the diffraction effect of the micro multi-step mirrors (MMSMs) is studied. We discuss the influence to the reversed spectrum by different mirror widths and different diffraction distances. Secondly we simulate and analyze the influence of the source solid angle to the spectral resolution. Thirdly we set up the theoretical model of the collimation error which is mainly from the defocus of the optical system and analyze the result caused by the collimation error. Fourthly a new discrete Fourier transform arithmetic using least-squares cosines progression (LSCP) is proposed which can reconstruct the spectrum with nonuniform sampled signals. Finally the MMSMs are fabricated used the MOEMS technology and the structural parameters are tested. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Study on supper resolution reconstruction based on staggered arrays (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Yuan Z.; Xing Z.; Guang J.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

The image resolution can be improved without increasing the requirement to optical imaging systems' parameters and decreasing the size of CCD pixel by staggered arrays technology which arranges several CCDs in a specific mode. In this paper an image super resolution method of improving the image resolution for 1.5 times both in two directions by 4 linear arrays staggered based on this technology is presented which avoids the large computation in a single time by use of circulation method. This method is proved effective by the digital simulation and a simulated experiment platform is constructed to test its feasibility. The image resolution is improved for 1.42 times of the unreconstructed image according to the imaging experiment of resolution chart which is closed to 1.5 times in ideal case. And also the reconstructed and unreconstructed images are evaluated by the image information entropy which proves that the reconstructed image contains more information. 2011 IEEE.

Research on the identification for a nonlinear system (EI CONFERENCE) 会议论文 OAI收割
International Conference on Optical, Electronic Materials and Applications 2011, OEMA 2011, March 4, 2011 - March 6, 2011, Chongqing, China
作者: Liu J.; Jia P.; Liu J.; Liu J.

收藏 | 浏览/下载：31/0 | 提交时间：2013/03/25

The characteristic of the drift error of inertial platform is a high-order nonlinear dynamic system using the neural networks' abilities of universal approximation of differentiable trajectory and capturing system dynamic information this paper presents the drift error identifying project of inertial platform based on Elman networks structure. First the drift error model of inertial platform is established after selecting the input and output for network momentum and alterable speed algorithm is used to speed up the network convergence. On the basis of the algorithm the extended nonlinear node function in the hidden network does not only improve the learning speed of network but also satisfies the need of accuracy on system identification. Through the drift error data measured on inertial platform the training result shows that the scheme achieves satisfied identification results. (2011) Trans Tech Publications.

Integrated context tacit knowledge manage model (EI CONFERENCE) 会议论文 OAI收割
2011 7th International Conference on Natural Computation, ICNC 2011, July 26, 2011 - July 28, 2011, Shanghai, China
作者: Liu G.; Wang Y.-C.; Wang Y.-C.

收藏 | 浏览/下载：30/0 | 提交时间：2013/03/25

Aimed at solving the practical problem about the difficult in the acquirement the transformation and the sharing of the tacit knowledge this paper have constructed a integrated context tacit knowledge modelCTKM and the paper is based on the conclusion that knowledge is the product of certain context the value of the knowledge depends on its context. Firstly the model described in this paper fulfills online knowledge mutual platform and it provide a support for the sharing transmission of the knowledge and the collection of tacit knowledge and knowledge context elements. After that the paper constructs a context management model to finish the design of context recognition acquisition scheme and problem-based context modeling. Lastly on the basis of the context model the paper fulfill the acquisition the expression the sharing and the storage in the tacit knowledge management. CTKM model provide a solution of the integrated context for the tacit knowledge management and through the load of context elements achieve the effective sharing of the tacit knowledge. 2011 IEEE.