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浏览/检索结果: 共9条,第1-9条 帮助

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A CNN-Based Method to Construct a Laterally Heterogeneous S-Wave Velocity Model From Spatially Windowed Surface Wave Data 期刊论文  OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2024, 卷号: 62, 页码: 15
作者:  
Shen, Jian;  Shi, Zhenming;  Liu, Liu;  Peng, Ming;  Wang, Dengyi
  |  收藏  |  浏览/下载:2/0  |  提交时间:2025/06/27
Design of near Infrared Continuous Zoom Optical System 会议论文  OAI收割
Shenzhen, China, 2020-09-07
作者:  
Ma, Zi-Xuan;  Li, Xu-Yang;  Ren, Zhi-Guang;  Chu, Nan-Qing
  |  收藏  |  浏览/下载:22/0  |  提交时间:2021/01/20
Interpretation of comprehensive two-dimensional gas chromatography data using advanced chemometrics 期刊论文  OAI收割
trac-trends in analytical chemistry, 2014, 卷号: 53, 页码: 150-166
作者:  
Zeng, Zhongda;  Li, Jia;  Hugel, Helmut M.;  Xu, Guowang;  Marriott, Philip J.
收藏  |  浏览/下载:33/0  |  提交时间:2015/11/17
Immersed nanospheres super-lithography for the fabrication of sub-70nm nanoholes with period below 700nm (EI CONFERENCE) 会议论文  OAI收割
2012 12th IEEE International Conference on Nanotechnology, NANO 2012, August 20, 2012 - August 23, 2012, Birmingham, United kingdom
作者:  
Li S.;  Du J.;  Shi L.
收藏  |  浏览/下载:144/0  |  提交时间:2013/03/25
A maskless nano-lithography method by using polystyrene spheres (PSs) self-assembled on silver slab (NSSL) was proposed in [optics express  Vol. 16  No. 19 (2008) 14397]. Following that  to break the limitations in resolution and PSs period of NSSL method  in this paper  we present PSs immersed super-resolution lithography (NSISL) technology by embedding the PSs into appropriate material to improve the efficiency of the surface plasmon excitation. The energy modulating mechanism and the rules of the resolution affected by silver slab were studied by calculating and analysing the energy distribution. The curve of the lithography resolution versus the silver thickness was presented. In order to verify this method  contrast analysis was carried out with NSSL. The results show that the lithography resolution is improved efficiently. Taking a specific configuration with PS diameter of 600nm as an example  the resolution was improved to 54nm from 190nm with Ag thickness of 25nm. Based on the calculation results  we carried out the experiments. Nano holes with dimension of 75nm and period of 600nm were obtained. 2012 IEEE.  
Resolving co-eluting chromatographic patterns by means of dissimilarity analysis in iterative target transformation factor analysis 期刊论文  OAI收割
journal of chromatography a, 2011, 卷号: 1218, 期号: 40, 页码: 7219-7225
作者:  
Zhang, Liangxiao;  Zhang, Wan;  Cao, Dongsheng;  Zeng, Maomao;  Liang, Yizeng
收藏  |  浏览/下载:42/0  |  提交时间:2015/11/12
The Research of real time auto-recognition of the moire fringe (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
Wang M.-J.; Wu Z.-G.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
Measuring the movement of raster by the method of moire fringe has the advantage of high sensitivity  high resolution and non-contacted measurement. The characteristic of moire fringe is that the image is white alternate with black  the angle of the stripes is uniform  the width of the stripes is uniform  the terminators of the stripes aren't clear. A fast method that can figure out the width and angle of the moire fringe precisely is put forward in this paper. It calculates the angle the stripes firstly. According to the principle of the minimum mean squared error (MMSE)  the closer a series of data is  the smaller the value of the MMSE will be. The method is described as follows: It takes the image's center as the origin  180 beelines pass through the origin with the same angle interval. it calculates the value of the minimum mean squared error of the 180 beelines and find out the least one among those  then the angle of the moire fringe comes out primarily. In order to improving the calculating precision of moire fringe  60 equal angles are divided in the neighborhood of the angle  then a precise angle of moire fringe is calculated according to the principle of the MMSE. After getting out the angle of the moire fringe  we begin to calculate the width of moire fringe. A line vertical with the moire fringe is drawn  and we can get the width of the moire fringe by the vertical line. In order to get over the influence of the noise  an effective area with the shape of diamond is selected in the image. The data of area is accumulated and projected according to the direction of moire fringe  and a sine curve come out. The width of moire fringe can be obtained by getting the position of the first wave crest  the position of the last wave crest and the number of wave crest. Experiments prove that the precision of the method put forward in this paper is enhanced in comparison with the traditional frequency method  the precision of width calculation achieves to 99.6% according to the evaluation indicators of width detection error. The computing speed is boosted largely compared with traditional method  and it can achieve with 15 ms  that satisfying the demand of real time. 2011 SPIE.  
Measuring instrument for radial composite deviations of high-precision master gear (EI CONFERENCE) 会议论文  OAI收割
6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China
作者:  
Zhang Y.;  Wang L.;  Wang L.;  Wang L.
收藏  |  浏览/下载:48/0  |  提交时间:2013/03/25
During double flank rolling composite detection  the radial composite deviations of master gears has been existed and transferred to the measured gear by the primary harmonic curve. In order to improve measurement accuracy  a measuring instrument is developed for radial composite deviations of high-precision master gear in the paper. This instrument uses the structure of spring-suspend swing span to overcome the shortcomings of large rotation errors  low sensitivity  low resolution and large measuring force appearing in the traditional combination-type gear inspection instrument. Artificial intelligence technology is used to improve the efficiency and accuracy of this instrument. The result is that the measuring apparatus is able to meet the requirement and improve efficiency through the measuring experiments on master gears of precision grade 2 with modulus 2 mm and 3 mm  respectively. 2010 SPIE.  
Study on the count plateau, gas gain and energy resolution of the Micromegas detectors 期刊论文  OAI收割
ACTA PHYSICA SINICA, 2008, 卷号: 57, 页码: 2141-2144
作者:  
Hu Bi-Tao;  Xu Hu-Shan;  Duan Li-Min;  Yang He-Run;  Zhang Xiao-Dong
  |  收藏  |  浏览/下载:16/0  |  提交时间:2018/05/31
SOME NOVEL METHODS BASED ON RECURSIVE OPTIMAL ESTIMATION - APPLICATIONS TO ANALYTICAL-CHEMISTRY 期刊论文  OAI收割
Analytica Chimica Acta, 1993, 期号: 2, 页码: 199-204
Yu, B. M.; Li, M. L.; Liu, A. P.; Li, Z. L.; Shi, L. M.; Pan, Z. X.
收藏  |  浏览/下载:31/0  |  提交时间:2014/03/14