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]
数学与系统科学研究院 [2]
昆明植物研究所 [1]
南京土壤研究所 [1]
沈阳自动化研究所 [1]
植物研究所 [1]
更多
采集方式
OAI收割 [7]
iSwitch采集 [1]
内容类型
期刊论文 [5]
会议论文 [3]
发表日期
2020 [1]
2016 [1]
2013 [1]
2012 [1]
2011 [2]
2006 [2]
更多
学科主题
Chemistry [1]
Ecology [1]
Environmen... [1]
筛选
浏览/检索结果:
共8条,第1-8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
发表日期升序
发表日期降序
提交时间升序
提交时间降序
作者升序
作者降序
THE EFFECTS OF IRRIGATION REGIMES ON SOIL MOISTURE DYNAMICS, YIELD AND QUALITY OF LUCERNE UNDER SUBSURFACE DRIP IRRIGATION
期刊论文
OAI收割
APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH, 2020, 卷号: 18, 期号: 3, 页码: 4179-4194
作者:
Wang, Y. D.
;
Kou, D.
;
Muneer, M. A.
;
Fang, G. J.
;
Su, D. R.
  |  
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2022/03/01
Medicago sativa L.
regulated deficit irrigation
crude protein
relative feed value
water use efficiency
A Two-Stage Method to Identify Joint Modules From Matched MicroRNA and mRNA Expression Data
期刊论文
OAI收割
IEEE TRANSACTIONS ON NANOBIOSCIENCE, 2016, 卷号: 15, 期号: 4, 页码: 362-370
作者:
Min, Wenwen
;
Liu, Juan
;
Luo, Fei
;
Zhang, Shihua
  |  
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2018/07/30
L-0-penalized singular value decomposition (L-0-SVD)
miRNA cluster
miRNA-gene joint module
multiple-output sparse group lasso
A shape context based Hausdorff similarity measure in image matching
会议论文
OAI收割
5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013
作者:
Ma TL(马天磊)
;
Liu YP(刘云鹏)
;
Shi ZL(史泽林)
;
Yin J(尹健)
收藏
  |  
浏览/下载:43/0
  |  
提交时间:2013/12/26
The traditional Hausdorff measure, which uses Euclidean distance metric (L2 norm) to define the distance between coordinates of any two points, has poor performance in the presence of the rotation and scale change although it is robust to the noise and occlusion. To address the problem, we define a novel similarity function including two parts in this paper. The first part is Hausdorff distance between shapes which is calculated by exploiting shape context that is rotation and scale invariant as the distance metric. The second part is the cost of matching between centroids. Unlike the traditional method, we use the centroid as reference point to obtain its shape context that embodies global information of the shape. Experiment results demonstrate that the function value between shapes is rotation and scale invariant and the matching accuracy of our algorithm is higher than that of previously proposed algorithm on the MEPG-7 database.
LOCAL MULTILEVEL METHODS FOR SECOND-ORDER ELLIPTIC PROBLEMS WITH HIGHLY DISCONTINUOUS COEFFICIENTS
期刊论文
OAI收割
JOURNAL OF COMPUTATIONAL MATHEMATICS, 2012, 卷号: 30, 期号: 3, 页码: 223-248
作者:
Chen Huangxin
;
Xu Xuejun
;
Zheng Weiying
  |  
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2021/01/14
BOUNDARY-VALUE-PROBLEMS
WEIGHTED L2 PROJECTION
FINITE-ELEMENT METHODS
MULTIGRID V-CYCLE
DOMAIN DECOMPOSITION
3 DIMENSIONS
ITERATIVE METHODS
ERROR ESTIMATORS
SCHWARZ METHODS
REFINED MESHES
Local multilevel method
Adaptive finite element method
Preconditioned conjugate gradient method
Discontinuous coefficients
Natural Cyclic Peroxide Echinobithiophene A with Anti-microbial from Echinops ritro L.
期刊论文
OAI收割
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2011, 卷号: 32, 期号: 4, 页码: 891-896
作者:
Li Liang-Bo
;
Ren Jie
;
Lai Ren
;
Cheng Zheng-Ming
;
Zhu Hua-Jie
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2012/04/10
Echinops ritro L.
Echinobithiophene A
Anti-microbial activity
Optical rotation value
Application of Cu-65 Dilution Techniques for Assessing L and E-Values for Cu in Long-term Biosolid Applied Soils
期刊论文
iSwitch采集
ACTA CHIMICA SINICA, 2011, 卷号: 69, 期号: 4, 页码: 459-465
作者:
Chen Shibao
;
Ma Yibing
;
Enzo Lombi
;
Mike J. McLaughlin
收藏
  |  
浏览/下载:127/0
  |  
提交时间:2019/10/10
Cu-65
isotopic dilution technology
E-value
L-value
bioavailability
Low drive-voltage and high-bandwidth electro-optic modulators based on BaTiO3 thin-film waveguides (EI CONFERENCE)
会议论文
OAI收割
Science and Technology of Dielectrics for Active and Passive Photonic Devices - 210th Electrochemical Society Meeting, October 29, 2006 - November 3, 2006, Cancun, Mexico
Sun D. G.
;
Fu X. H.
;
Liu Z. F.
;
Ho S. T.
;
Wessels B. W.
收藏
  |  
浏览/下载:52/0
  |  
提交时间:2013/03/25
We investigated electro-optic modulator structures to target low drive voltage
high-speed modulation
and small device size with c-axis grown BaTiO3/MgO ferro-electric thin films. In this study
the calculations are focused on the ideal thin film with a quadratic relation between the half-wave drive voltage V and the interaction length L in the electro-optic modulation case we obtained in previous work. With the quadratic electro-optic modulating relation and the optimal rib waveguide structure of BaTiO3/MgO thin films
the frequency-voltage-size performances for 2.5GHz
10GHz
40GHz
and 100GHz modulation bandwidths have been obtained under half-wave drive voltages of 0.8V
1.6V
3.0V and 4.8V
respectively
for the ideal film with r51=730 pm/V at 1550nm wavelength
where both the phase velocity matching condition and the conductor induced microwave attenuation are considered. The required device lengths to achieve these four typical values of modulation bandwidth are 3.3 mm
0.8 mm
0.4 mm and 0.2 mm
respectively. With the c-axis grown BaTiO3/MgO crystal thin films and the quadratic electro-optic modulating relation
an electro-optic coefficient of reff=180 pm/V for the c-axis grown BaTiO3/MgO ferro-electric thin films was measured
which is relatively far from the ideal value of r51=560 pm/V. copyright The Electrochemical Society.
Study on color model conversion for camera with neural network based on the combination between second general revolving combination design and genetic algorithm (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:
Li Z.
;
Zhou F.
;
Wang C.
;
Li Z.
收藏
  |  
浏览/下载:39/0
  |  
提交时间:2013/03/25
Munsell color system is selected to establish the mutual conversion between RGB and L*a*b* color model for camera. The color luminance meter and CCD camera synchronously measure the same color card
XYZ value is gotten from the color luminance meter
the training error is 0.000748566
it can show that the method combining second general revolving combination design with genetic algorithm can optimize the hidden-layer structure of neural network. Using the data of testing set to test this network and calculating the color difference between forecast value and true value
the color picture captured from CCD camera is expressed for RGB value as the input of neural network
and the L*a*b* value converted from XYZ value is regarded as the real color value of target card
which the difference is not obvious comparing with forecast result
the maximum is 5.6357 NBS
namely the output of neural network. The neural network of two hidden-layers is considered
the minimum is 0.5311 NBS
so the second general revolving combination design is introduced into optimizing the structure of neural network
and the average of color difference is 3.1744 NBS.
which can carry optimization through unifying project design
data processing and the precision of regression equation. Their mathematics model of encoding space is gained
and the significance inspection shows the confidence degree of regression equation is 99%. The mathematics model is optimized by genetic algorithm
optimization solution is gotten
and function value of the goal is 0.0007168. The neural network of the optimization solution is trained