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CAS IR Grid
机构
长春光学精密机械与物... [2]
大连化学物理研究所 [2]
计算技术研究所 [1]
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OAI收割 [4]
iSwitch采集 [1]
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期刊论文 [4]
会议论文 [1]
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2019 [2]
2018 [1]
2015 [1]
2010 [1]
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Palladium-Catalyzed Propargylic [n+2] Cycloaddition: An Efficient Strategy for Construction of Benzo-Fused Medium-Sized Heterocycles
期刊论文
OAI收割
ADVANCED SYNTHESIS & CATALYSIS, 2019, 卷号: 361, 期号: 4, 页码: 836-841
作者:
Liu, Zhen-Ting
;
Hu, Xiang-Ping
  |  
收藏
  |  
浏览/下载:67/0
  |  
提交时间:2019/06/20
A regioselective palladium-catalyzed formal [n+2] cycloaddition of propargylic esters as C-2-synthons with various linker-tethered bisphenols for the construction of medium-sized heterocycles bearing an exocyclic double bond has been developed
The reaction features mild conditions and broad substrate scopes
as well as readily available substrates and catalysts
Under optimal conditions
various medium-sized heterocycles from eight to eleven-membered rings can be afforded in good to excellent yields and regioselectivities with high Z-selectivity for the exocyclic double bond
palladium
medium-sized ring
propargylic ester
bisphenol
cycloaddition
Palladium-catalyzed propargylic [n+2] cycloaddition: an efficient strategy for construction of benzo-fused medium-sized heterocycles
期刊论文
iSwitch采集
Advanced synthesis & catalysis, 2019, 卷号: 361, 期号: 4, 页码: 836-841
作者:
Liu, Zhen-Ting
;
Hu, Xiang-Ping
收藏
  |  
浏览/下载:91/0
  |  
提交时间:2019/05/08
A regioselective palladium-catalyzed formal [n+2] cycloaddition of propargylic esters as c-2-synthons with various linker-tethered bisphenols for the construction of medium-sized heterocycles bearing an exocyclic double bond has been developed
The reaction features mild conditions and broad substrate scopes
As well as readily available substrates and catalysts
Under optimal conditions
Various medium-sized heterocycles from eight to eleven-membered rings can be afforded in good to excellent yields and regioselectivities with high z-selectivity for the exocyclic double bond
Palladium
Medium-sized ring
Propargylic ester
Bisphenol
Cycloaddition
An Omnidirectional Morphological Method for Aerial Point Target Detection Based on Infrared Dual-Band Model
期刊论文
OAI收割
Remote Sensing, 2018, 卷号: 10, 期号: 7, 页码: 26
作者:
Liu, R.
;
Wang, D. J.
;
Jia, P.
;
Sun, H.
  |  
收藏
  |  
浏览/下载:25/0
  |  
提交时间:2019/09/17
point target detection
dual-band model
optimal fused probability of
detection
omnidirectional morphological filtering
local difference
criterion
top-hat transform
2d images
algorithm
enhancement
features
filter
track
Remote Sensing
EEG feature selection method based on decision tree
期刊论文
OAI收割
BIO-MEDICAL MATERIALS AND ENGINEERING, 2015, 卷号: 26, 页码: S1019-S1025
作者:
Duan, Lijuan
;
Ge, Hui
;
Ma, Wei
;
Miao, Jun
  |  
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2019/12/13
Decision tree
feature selection
optimal features
EEG
brain-computer interface
Optimal multiresolution dynamic models generation based on triangle importance (EI CONFERENCE)
会议论文
OAI收割
2nd International Conference on Image Analysis and Signal Processing, IASP'2010, April 12, 2010 - April 14, 2010, Xiamen, China
作者:
Zhao J.
;
Zhang S.
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
In this paper
we propose an efficient method to generate optimal multiresolution dynamic models. By the method
we define the triangle importance degree as a weight parameter to be embedded to the edge contraction cost
so the new metric can not only measure distance error but also reflect geometric variation of local areas. A deformation degree weight is appended to the aggregated edge contraction cost for the whole animation
thus sharp features on areas with large deformation can be preserved. In addition
a process of mesh optimization and validity check can further alleviate the geometric distortion of the approximations. Our approach is efficient in operation
easy for implementation
and as a result high quality of dynamic approximations with well-preserved fine details can be generated at any given frame. 2010 IEEE.