中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共16条，第1-10条 帮助

条数/页： 排序方式：
Fast Measurement of Primary Productivity in the Yellow Sea and Bohai Sea Based on Fluorescence Kinetics Technology 期刊论文  OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 卷号: 42
作者:  Wang Xiang;  Yin Gan-fang;  Zhao Nan-jing;  Gan Ting-ting
  |  收藏  |  浏览/下载：27/0  |  提交时间：2022/12/23
RFI measurements and mitigation for FAST 期刊论文  OAI收割
RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2020, 卷号: 20, 期号: 5, 页码: 4
作者:  Zhang, Hai-Yan;  Wu, Ming-Chang;  Yue, You-Ling;  Gan, Heng-Qian;  Hu, Hao
  |  收藏  |  浏览/下载：24/0  |  提交时间：2021/12/06
Construction of bi-layer biluminophore fast-responding pressure sensitive coating for non-contact unsteady aerodynamic testing 期刊论文  OAI收割
POLYMER TESTING, 2019, 卷号: 77, 页码: 8
作者:  Yang D;  Ren JK;  Li JW(栗继伟);  Wang QL;  Wang Q(汪球)
  |  收藏  |  浏览/下载：70/0  |  提交时间：2019/11/25
Energy-resolved fast neutron resonance radiography at csns 期刊论文  iSwitch采集
Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment, 2018, 卷号: 889, 页码: 122-128
作者:  Tan, Zhixin;  Tang, Jingyu;  Jing, Hantao;  Fan, Ruirui;  Li, Qian
收藏  |  浏览/下载：83/0  |  提交时间：2019/04/23
Energy-resolved fast neutron resonance radiography at CSNS 期刊论文  OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2018, 卷号: 889, 页码: 122-128
作者:  Ning CJ(宁常军);  Tan, ZX;  Zhang, XP;  Tang, JY;  Jing, HT
  |  收藏  |  浏览/下载：67/0  |  提交时间：2019/09/24
Experimental Study on Micro Quantitative Phase Imaging by Quadriwave Shearing Interferometry 期刊论文  OAI收割
Guangzi Xuebao/Acta Photonica Sinica, 2018, 卷号: 47, 期号: 7
作者:  Cui, Bo-Chuan;  Wang, Jian-Li;  Yao, Kai-Nan;  Chen, Tao
  |  收藏  |  浏览/下载：17/0  |  提交时间：2019/09/17
Differential correction method applied to measurement of the FAST reflector 期刊论文  OAI收割
RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2016, 卷号: 16, 期号: 8, 页码: 121-U32
作者:  Li, Xin-Yi;  Zhu, Li-Chun;  Hu, Jin-Wen;  Li, Zhi-Heng
收藏  |  浏览/下载：26/0  |  提交时间：2017/02/15
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：19/0  |  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.  
Animated models coarsening with local area distortion and deformation degree control (EI CONFERENCE) 会议论文  OAI收割
International Conference on Image Processing and Pattern Recognition in Industrial Engineering, August 7, 2010 - August 8, 2010, Xi'an, China
作者:  Zhang S.;  Zhao J.
收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25
In computer graphics applications  mesh coarsening is an important technique to alleviate the workload of visualization processing. Compared to the extensive works on static model approximation  very little attentions have been paid to animated models. In this paper  we propose a new method to approximate animated models with local area distortion and deformation degree control. Our method uses an improved quadric error metric guided by a local area distortion measurement as a basic hierarchy. Also  we define a deformation degree parameter to be embedded into the aggregated quadric errors  so areas with large deformation during the animation can be successfully preserved. Finally  a mesh optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast  easy to implement  and as a result good quality dynamic approximations with well-preserved sharp features can be generated at any given frame. 2010 SPIE.