中国科学院机构知识库网格系统: 检索

Mitigation of harmful algal blooms using modified clays: Theory, mechanisms, and applications 期刊论文 OAI收割
HARMFUL ALGAE, 2017, 卷号: 69, 页码: 48-64
作者: Yu, Zhiming; Song, Xiuxian; Cao, Xihua; Liu, Yang

|

收藏 | 浏览/下载：38/0 | 提交时间：2018/01/16

Modified Clays Hab Mitigation Surface Modification Theory Preparation Method Applications In The Field Ecological Effects

Simulation test system of CCD signal processor based on FPGA (EI CONFERENCE) 会议论文 OAI收割
2nd International Conference on Mechatronics and Applied Mechanics, ICMAM 2012, December 8, 2012 - December 9, 2012, Taiwan
作者: Zhang D.; Liu D.-B.; Zhang D.

收藏 | 浏览/下载：41/0 | 提交时间：2013/03/25

Simulation test system of CCD signal processor based on FPGA is proposed. Field-programmable gate array (FPGA) is applied as control processing core and used in the aerospace upgrade screening of industrial grade signal processor. The system functional composition and working principle were introduced in detail. Actually evaluation and testing system was completed with integrating the forty signal processor in a single board. The system has been successfully applied in the dynamic build-in screening test of industrial grade signal processor XRD98L63 the system work stably and reliability. Test result is zero on the nonconforming product rate satisfying the qualification that single batch screening nonconforming rate is less than 5% build-in screening of industrial grade components for the space load applications is implemented. (2013) Trans Tech Publications Switzerland.

The synthesis of graphene on carbon nanotube surface (EI CONFERENCE) 会议论文 OAI收割
25th International Vacuum Nanoelectronics Conference, IVNC 2012, July 9, 2012 - July 13, 2012, Jeju, Korea, Republic of
作者: Wang W.; Wang W.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

Layered graphene were synthesized on carbon nanotubes surface by MWCVD method with the pretreatment of carbon nanotube. The field emission propertied of graphene-carbon nanotube complex material emitter. This kind of emitter may have potential applications in field emission display device for improving emission uniform. 2012 IEEE.

Study of horizontal shafting with spherical four-way structure (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
作者: Yang L.; Yang L.

收藏 | 浏览/下载：34/0 | 提交时间：2013/03/25

Altazimuth photoelectric theodolite level shaft U-type and T-type structure but with the expanding field of applications of photoelectric theodolite the horizontal shaft structure occur great changes. For example in the marine environment shipboard conditions the instrument has a waterproof corrosion-resistant easy maintenance and other functions while carrier-based optoelectronic devices from a single visible television configure the development of integrated infrared system and ranging system as one of the single-station measurement system due to the spherical structure has sufficient internal space exactly adapted to this need. In this paper the horizontal axis of a spherical four-way structure. From aspects of the spherical four-way split in the form and shafting design and finite element analysis of the detailed design. A spherical four-way horizontal axis system diameter 550mm weight 19kg sphere in the 40kg load the maximum deformation of 3.3m fully meet the requirements. The shaft of the structure of the shaking is less than 2 arc seconds the vibration test the re-examination instrument accuracy change is less than 1 arc seconds. Verify that the structure is stable and reliable. 2012 IEEE.

Efficient human action recognition using accumulated motion image and support vector machines (EI CONFERENCE) 会议论文 OAI收割
International Workshop on Advanced Computational Intelligence and Intelligent Informatics, IWACIII 2011, November 19, 2011 - November 23, 2011, Suzhou, China
作者: Zhang X.; Zhang J.; Zhang J.; Zhang X.; Zhang X.

收藏 | 浏览/下载：70/0 | 提交时间：2013/03/25

Vision-based human action recognition provides an advanced interface and research in this field of human action recognition has been actively carried out. This paper describes a scheme for recognizing human actions from a video sequences. The proposed method is an extension of the Motion History Image(MHI) method based on the ordinal measure of accumulated motion which is robust to variations of appearances. We define the accumulated motion image(AMI) using image differences firstly. Then the AMI of the video sequencesis resized to a MN regulation following the standard of training phases. Finally we employ Support Vector Machine(SVM) as a classifier to distinguish the current activity in target video sequences. In a word our proposed algorithm not only outperforms the state of art on public available KTH data set and Weizmann data set but also proves practical to some real world applications in addition this method is computationally simple and able to achieve a satisfactory accuracy.

Multi-focus image fusion algorithm based on adaptive PCNN and wavelet transform (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Wu Z.-G.; Wang M.-J.; Han G.-L.

收藏 | 浏览/下载：81/0 | 提交时间：2013/03/25

Being an efficient method of information fusion image fusion has been used in many fields such as machine vision medical diagnosis military applications and remote sensing.In this paper Pulse Coupled Neural Network (PCNN) is introduced in this research field for its interesting properties in image processing including segmentation target recognition et al. and a novel algorithm based on PCNN and Wavelet Transform for Multi-focus image fusion is proposed. First the two original images are decomposed by wavelet transform. Then based on the PCNN a fusion rule in the Wavelet domain is given. This algorithm uses the wavelet coefficient in each frequency domain as the linking strength so that its value can be chosen adaptively. Wavelet coefficients map to the range of image gray-scale. The output threshold function attenuates to minimum gray over time. Then all pixels of image get the ignition. So the output of PCNN in each iteration time is ignition wavelet coefficients of threshold strength in different time. At this moment the sequences of ignition of wavelet coefficients represent ignition timing of each neuron. The ignition timing of PCNN in each neuron is mapped to corresponding image gray-scale range which is a picture of ignition timing mapping. Then it can judge the targets in the neuron are obvious features or not obvious. The fusion coefficients are decided by the compare-selection operator with the firing time gradient maps and the fusion image is reconstructed by wavelet inverse transform. Furthermore by this algorithm the threshold adjusting constant is estimated by appointed iteration number. Furthermore In order to sufficient reflect order of the firing time the threshold adjusting constant is estimated by appointed iteration number. So after the iteration achieved each of the wavelet coefficient is activated. In order to verify the effectiveness of proposed rules the experiments upon Multi-focus image are done. Moreover comparative results of evaluating fusion quality are listed. The experimental results show that the method can effectively enhance the edge details and improve the spatial resolution of the image. 2011 SPIE.

Layered graphene on surface of carbon fiber (EI CONFERENCE) 会议论文 OAI收割
8th International Vacuum Electron Sources Conference, IVESC 2010 and NANOcarbon 2010, October 14, 2010 - October 16, 2010, Nanjing, China
作者: Wang W.; Wang W.

收藏 | 浏览/下载：41/0 | 提交时间：2013/03/25

Carbon nanomaterials have attracted considerable attention and interest owing to the unique physical and chemical properties. Such as nanodiamonds carbon nanofibers carbon nanotubes (CNTs) graphene and so on they all have potential applications as field electron emission materials electrode materials storage hydrogen materials and composite materials. In this paper we reported the growth of layered graphene(LG) on carbon fibers surface. The LG synthesized on carbon fibers may have potential applications in many fields. For example using to improve the electric conductivity and chemical stability of carbon fibers substrate the grown LG can be applied as high performance capacitor battery field emission electron source hydrogen storage owing to large ratio surface and hybrid multiscale composite. 2010 IEEE.

P2-2: The synthesis of graphite nanocrystals on carbon fiber surface (EI CONFERENCE) 会议论文 OAI收割
23rd International Vacuum Nanoelectronics Conference, IVNC 2010, July 26, 2010 - July 30, 2010, Palo Alto, CA, United states
作者: Wang W.; Wang W.

收藏 | 浏览/下载：19/0 | 提交时间：2013/03/25

Graphite nanosheets were synthesized on carbon fibers by floating catalyst method with the pretreatment of carbon fibers. Its width and height were 50 nm and 600 nm respectly. graphite nanosheets synthesized on carbon fibers may have potential applications in field emission. 2010 IEEE.

Analysis and modelling of no-reference video quality assessment (EI CONFERENCE) 会议论文 OAI收割
2009 International Conference on Computer and Automation Engineering, ICCAE 2009, March 8, 2009 - March 10, 2009, Bangkok, Thailand
Tian Y.; Zhu M.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

Video processing system may introduce some amounts of distortions in the video signal. It is crucial to measure the video quality blindly for most image processing applications which could not obtain the original image. Different Video Quality Assessment (VQA) methods are analysis in this paper. A state of art in the field of No- Reference (NR) VQA is presented. Finally an ideal NR VQA model is proposed. 2009 IEEE.

Integrated mach-zehnder micro-interferometer for gas trace remote sensing (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: Wang P.

收藏 | 浏览/下载：46/0 | 提交时间：2013/03/25

The realisation process and the preliminary tests on the performances of an integrated Mach-Zehnder Interferometer on LiNbO3 (Lithium Niobate) substrate is presented. The microsystem has been obtained by using medium mass Ion Implantation on X-cut Lithium Niobate crystals. The interferometer is formed by integrated optical channel waveguides: the phase shift between the two optical paths has been obtained 1mm 2 cross section and weights a few grams. The power consumption is in the milliwatt range. In the present work results obtained in the spectral window (0.4m-1.1m) will be presented. The performance of the device without moving parts evaluated on standard radiation sources by applying a suitable electric field. The whole device is 60mm long demonstrates that a spectral resolution better than 0.3nm can be obtained on 400nm spectral windows. The Micro-interferometer has been tested in laboratory with a calibrated cell containing NO2 gas and has demonstrated sensitivity in the ppb range if suitable optical paths are used. Its reduced dimensions and weights make these micro-systems ideal for a wide range of applications has a 0.57times spanning from Space Technology Earth observation for Environment monitoring to Safety and Security applications.