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
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与物... [2]
武汉物理与数学研究所 [2]
西安光学精密机械研究... [2]
物理研究所 [1]
采集方式
OAI收割 [7]
内容类型
会议论文 [4]
期刊论文 [3]
发表日期
2019 [2]
2012 [1]
2006 [2]
2000 [1]
1999 [1]
学科主题
筛选
浏览/检索结果:
共7条,第1-7条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
题名升序
题名降序
提交时间升序
提交时间降序
作者升序
作者降序
发表日期升序
发表日期降序
Target detection method for small defects in ink area of planar glass element
会议论文
OAI收割
Beijing, China, 2019-07-07
作者:
Qi, Wenbo
;
Wang, Zhengzhou
;
Wang, Li
;
Tan, Meng
;
Wei, Jitong
  |  
收藏
  |  
浏览/下载:40/0
  |  
提交时间:2020/02/28
Planar glass element
Ink area
small and weak defect target
target detection
self-correlation template matching
one-dimensional maximum entropy
Recent advances in large-scale assembly of semiconducting inorganic nanowires and nanofibers for electronics, sensors and photovoltaics
期刊论文
OAI收割
CHEMICAL SOCIETY REVIEWS, 2012, 卷号: 41, 期号: 12, 页码: 4560
Long, YZ
;
Yu, M
;
Sun, B
;
Gu, CZ
;
Fan, ZY
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2013/09/24
ONE-DIMENSIONAL NANOSTRUCTURES
LANGMUIR-BLODGETT TECHNIQUE
WALLED CARBON NANOTUBES
ALIGNED POLYMER FIBERS
PHYSICAL-PROPERTIES
ELECTROSPUN FIBERS
ENERGY-CONVERSION
SILICON NANOWIRES
MULTISEGMENTED NANOWIRES
ELECTRICAL DETECTION
An improved two-dimensional entropy method for star trail tracing in deep sky (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Wang Y.-J.
;
Yao Z.-J.
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/03/25
The trace of star trail is an important component of deep sky detection. The stars are low contrast targets
and their self-rotation will make their brightness change in cycle. Above all
the trail trace is vulnerable to the block and disturbance of other stars. Traditional one-dimensional maximum entropy thresholding algorithm is vulnerable to the noise
and the calculation of two-dimensional entropy methods is too large and takes too much time. This paper proposes an improved two-dimensional entropy threshold algorithm. We use recursion iteration method to eliminate the redundancy calculation
and reduce the size of two-dimensional histogram based on the deep sky stars characteristic
such as low contrast
fuzziness and the centralized histogram. We also combine our algorithm with the space trail trace model to forecast the star trace. Experiments results show
when the star are blocked or they turn dark
the method still can well extrapolate the star trace. Our method improves the capability of trailing the ebb and small star
and increases the precision of tracing. It is also robust to the noise
so there is a good application foreground for the method.
Study on color difference estimation method of medicine biochemical analysis (EI CONFERENCE)
会议论文
OAI收割
ICO20: Illumination, Radiation, and Color Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2013/03/25
The biochemical analysis in medicine is an important inspection and diagnosis method in hospital clinic. The biochemical analysis of urine is one important item. The Urine test paper shows corresponding color with different detection project or different illness degree. The color difference between the standard threshold and the test paper color of urine can be used to judge the illness degree
therefore
it can be used in hospital
so that further analysis and diagnosis to urine is gotten. The color is a three-dimensional physical variable concerning psychology
the estimation method of color difference in urine test can have better precision and facility than the conventional test method with one-dimensional reflectance
calibrating organization and family
while reflectance is one-dimensional variable
it can make an accurate diagnose. The digital camera is easy to take an image of urine test paper and is used to carry out the urine biochemical analysis conveniently. On the experiment
so its application prospect is extensive.
the color image of urine test paper is taken by popular color digital camera and saved in the computer which installs a simple color space conversion (RGB &rarr XYZ &rarr L*a*b*) and the calculation software. Test sample is graded according to intelligent detection of quantitative color. The images taken every time were saved in computer
and the whole illness process will be monitored. This method can also use in other medicine biochemical analyses that have relation with color. Experiment result shows that this test method is quick and accurate
Simulation of the off-resonance effect in one-dimensional heteronuclear multiple quantum coherence spectroscopy
期刊论文
OAI收割
MEASUREMENT SCIENCE & TECHNOLOGY, 2000, 卷号: 11, 期号: 3, 页码: 201-204
作者:
Du, F
;
Zhou, ZF
;
Miao, XJ
;
Mao, XA
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2015/12/01
NMR
heteronuclear multiple quantum coherence
(HMQC) experiment
bilinear rotation-decoupling (BIRD) sequence
one-dimensional detection
chemical shift effect
simulation
Improved one-dimensional NMR detection of heteronuclear multiple quantum coherence involving the insensitive nucleus Se-77 as demonstrated by the compound C28H28O4Se4W2
期刊论文
OAI收割
MEASUREMENT SCIENCE & TECHNOLOGY, 1999, 卷号: 10, 期号: 3, 页码: 170-173
作者:
Du, F
;
Liu, ML
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2015/12/01
NMR
heteronuclear multiple quantum coherence (HMQC) spectroscopy
one-dimensional detection
chemical shift modulation
signal-to-noise (S/N) improvement