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
地理科学与资源研究所 [1]
长春光学精密机械与物... [1]
新疆理化技术研究所 [1]
自动化研究所 [1]
武汉岩土力学研究所 [1]
地球环境研究所 [1]
更多
采集方式
OAI收割 [9]
内容类型
期刊论文 [6]
会议论文 [2]
EI期刊论文 [1]
发表日期
2016 [1]
2014 [1]
2013 [2]
2011 [1]
2009 [1]
2008 [3]
更多
学科主题
筛选
浏览/检索结果:
共9条,第1-9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
Controllable synthesis of SiO2 nanoparticles: effects of ammonia and tetraethyl orthosilicate concentration
期刊论文
OAI收割
MICRO & NANO LETTERS, 2016, 卷号: 11, 期号: 12, 页码: 885-889
作者:
Yan, Y (Yan, Yue)
;
Fu, J (Fu, Jie)
;
Xu, L (Xu, Ling)
;
Wang, TF (Wang, Tianfu)
;
Lu, XY (Lu, Xiuyang)
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2017/02/14
silicon compounds
nanoparticles
nanofabrication
ammonia
organic compounds
particle size
controllable synthesis
ammonia-tetraethyl orthosilicate concentration effects
drug carriers
drug delivery systems
Stober method
dynamic light scattering
scanning electron microscopy
nanoparticle size
dispersion
SiO2
NH3
84 MeV C-ions irradiation effects on Zr-45Ti-5Al-3V alloy
期刊论文
OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2014, 卷号: 334, 期号: 334, 页码: 96-100
作者:
Zhang, ZJ
;
Zhang, CH
;
Li, ZC
;
Wang, WP
  |  
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2015/10/15
High energy ions
Carbon ions irradiation effects
Carbide dispersion strengthening
Superlattice
Noninvasive Estimation of the Input Function for Dynamic Mouse F-18-FDG MicroPET Studies
期刊论文
OAI收割
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2013, 卷号: 60, 期号: 11, 页码: 3103-3112
作者:
Mu, Wei
;
Chen, Zhe
;
Dai, Xiaoqian
;
Tian, Jie
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2015/08/12
Bayesian penalty term
constraint nonnegative matrix factorization (CNMF)
delay and dispersion effects
input function
partial-volume and spillover effects
Numerical simulation of clouds and precipitation depending on different relationships between aerosol and cloud droplet spectral dispersion
期刊论文
OAI收割
TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY, 2013, 卷号: 65, 页码: 19054-19054
作者:
Xie, XN (Xie, Xiaoning)[ 1 ]
;
Liu, XD (Liu, Xiaodong)[ 1,2 ]
;
Peng, YR (Peng, Yiran)[ 3 ]
;
Yue, ZG (Yue, Zhiguo)[ 6 ]
;
Wang, Y (Wang, Yi)[ 4,5 ]
  |  
收藏
  |  
浏览/下载:83/0
  |  
提交时间:2018/12/10
Aerosol Indirect Effects
Cloud Droplet Spectral Dispersion
Autoconversion Parameterization
Deepconvective Systems
Two-moment Bulk Microphysics Scheme
Research on infrared dim-point target detection and tracking under sea-sky-line complex background (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:
Dong Y.-X.
;
Zhang H.-B.
;
Li Y.
;
Li Y.
;
Li Y.
收藏
  |  
浏览/下载:111/0
  |  
提交时间:2013/03/25
Target detection and tracking technology in infrared image is an important part of modern military defense system. Infrared dim-point targets detection and recognition under complex background is a difficulty and important strategic value and challenging research topic. The main objects that carrier-borne infrared vigilance system detected are sea-skimming aircrafts and missiles. Due to the characteristics of wide field of view of vigilance system
the target is usually under the sea clutter. Detection and recognition of the target will be taken great difficulties.There are some traditional point target detection algorithms
such as adaptive background prediction detecting method. When background has dispersion-decreasing structure
the traditional target detection algorithms would be more useful. But when the background has large gray gradient
such as sea-sky-line
sea waves etc.The bigger false-alarm rate will be taken in these local area.It could not obtain satisfactory results. Because dim-point target itself does not have obvious geometry or texture feature
in our opinion
from the perspective of mathematics
the detection of dim-point targets in image is about singular function analysis.And from the perspective image processing analysis
the judgment of isolated singularity in the image is key problem. The foregoing points for dim-point targets detection
its essence is a separation of target and background of different singularity characteristics.The image from infrared sensor usually accompanied by different kinds of noise. These external noises could be caused by the complicated background or from the sensor itself. The noise might affect target detection and tracking. Therefore
the purpose of the image preprocessing is to reduce the effects from noise
also to raise the SNR of image
and to increase the contrast of target and background. According to the low sea-skimming infrared flying small target characteristics
the median filter is used to eliminate noise
improve signal-to-noise ratio
then the multi-point multi-storey vertical Sobel algorithm will be used to detect the sea-sky-line
so that we can segment sea and sky in the image. Finally using centroid tracking method to capture and trace target. This method has been successfully used to trace target under the sea-sky complex background. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Optical path difference evaluation of the polarization interference imaging spectrometer
期刊论文
OAI收割
optics communications, 2009, 卷号: 282, 期号: 10, 页码: 1984-1992
作者:
Mu, Tingkui
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2011/09/30
Polarization interference imaging spectrometer
Optical path difference
Savart polariscope
Dispersion effects
Effect of road traffic on heavy metals in road dusts and roadside soils
EI期刊论文
OAI收割
2008
作者:
Chen Tongbin
;
Lei Mei
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2012/06/11
Cadmium
Copper
Dispersion (waves)
Dust
Friction materials
Heavy metals
Lead
Lead alloys
Liquid fuels
Metals
Motors
Petroleum products
Renewable energy resources
Roads and streets
Roadsides
Soils
Vehicles
Wind effects
Analysis of wave propagation in piles
会议论文
OAI收割
Lisbon, PORTUGAL, SEP 08-10, 2008
作者:
Chai, H. Y.
;
Wei, C. F.
  |  
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2018/06/05
longitudinal waves
dispersion
three-dimensional effects
rods
classical bar theory
Control of polarization signal distortion by frequency domain phase conjugation in optical fiber systems
期刊论文
OAI收割
sci. china ser. g-phys. mech. astron., 2008, 卷号: 51, 期号: 5, 页码: 512, 518
步扬
;
王向朝
收藏
  |  
浏览/下载:926/169
  |  
提交时间:2009/09/18
frequency domain phase conjugation
polarization
dispersion
nonlinear effects