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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [2]
地理科学与资源研究所 [1]
遥感与数字地球研究所 [1]
长春应用化学研究所 [1]
采集方式
OAI收割 [5]
内容类型
会议论文 [2]
期刊论文 [2]
SCI/SSCI论文 [1]
发表日期
2016 [2]
2014 [1]
2013 [1]
2005 [1]
学科主题
Geology [1]
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Spatial-temporal variation of precipitation concentration and structure in the Wei River Basin, China
SCI/SSCI论文
OAI收割
2016
作者:
Huang S. Z.
;
Huang, Q.
;
Chen, Y. T.
;
Xing, L.
;
Leng, G. Y.
  |  
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2017/11/09
changing properties
rainfall trends
variability
climate
temperature
circulation
extremes
region
index
Review of snow water equivalent microwave remote sensing
期刊论文
OAI收割
Science China Earth Sciences, 2016, 卷号: 59, 期号: 4, 页码: 731-745
作者:
Shi, JianCheng
;
Xiong, Chuan
;
Jiang, LingMei
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2017/04/24
FREQUENCY-ANALYSIS
NONPARAMETRIC APPROACH
CHANGING PROPERTIES
SEVERITY
INDEX
Synthesis, characterization, and ethylene polymerization behaviors of late-transition metal complexes coordinated with chlorinated bis(arylimino)pyridine ligand
期刊论文
OAI收割
polymer, 2014, 卷号: 55, 期号: 18, 页码: 4611-4618
Liu, Heng
;
Wang, Feng
;
Liu, Li
;
Jai,Xiang-Yu
;
Zheng,Wenjie
;
Guo,Jun
;
Zhang,Chun-Yu
;
Bai,Chen-Xi
;
Hu,Yan-Ming
;
Zhang,Xue-Quan
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2015/10/20
A series of late-transition metal complexes supported with chlorinated bis(arylimino)pyridine ligands [2
Ar = 2
Ar = 2
Ar = 2
Ar = 4-Cl-2
Ar = 4-Br-2
6-(ArN=CCl)(2)C5H3N]MtCl(2) (Ar = 2
6-(Pr2C6H3)-Pr-i
6-Et2C6H3
6-Me2C6H3
6-Me2C6H2
6-Me2C6H2
4
Mt = Fe (1b)
Mt = Co (1c)
Mt = Fe (1d)
Mt = Fe (1e)
Mt = Fe (1f)
6-Me3C6H2
Co (2b)
Ni (3c)
Co (2d)
Co (2e)
Co (2f)) were synthesized. At the presence of methylaluminoxane (MAO)
Mt = Fe (1a)
Fe(II)- and Co(II)- based complexes were highly active towards ethylene polymerization
Co (2a)
affording polymers with bimodal and unimodal molar. mass distributions
Ni (3a)
respectively
while the Ni(II)-based complexes gave no polymer products. Moreover
the obtained polyethylenes were predominately saturated and vinyl-terminated for Fe(II)- and Co(II)-based complexes
respectively. Changing the ligand environment
polymerization parameters also posed a great influence on the catalytic activities and the properties of the resulting polymers. (C) 2014 Elsevier Ltd. All rights reserved.
Structure and magnetic properties of (Al, Co) Co-doped ZnO thin films (EI CONFERENCE)
会议论文
OAI收割
2012 International Conference on Materials Science and Nanotechnology, ICMSN 2012, November 16, 2012 - November 18, 2012, Guangzhou, China
Cao P.
;
Bai Y.
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2013/03/25
In this study
Zn0.99Co0.01Al0.015O thin film has been prepared by sol-gel method. The structural and magnetic properties of the sample were investigated. X-ray diffraction spectroscopy analyses indicate that the Co and Al codoping can not disturb the structure of ZnO. No additional peaks are observed in the Zn0.99Co0.01Al xO and Al3+ and Co2+ substitute for Zn 2+ without changing the wurtzite structure. The resistance measurements confirm that Al ions increase the free carriers concentration. Based on the above experiments we think the ferromagnetic behavior of the sample could not originate from Co nanoclusters. The presence of free carriers and localized d spins is a prerequisite for the appearance of ferromagnetism. As the result
the carriers generated by Al doping is considered a main factor to induce the ferromagnetic phenomenon. (2013) Trans Tech Publications
Switzerland.
Vacuum annealing effects on properties of ITO films prepared by reactive low voltage ion plating technique (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Wang X.
;
Wang X.
;
Wang X.
;
Zheng X.
;
Gao J.
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2013/03/25
With reactive low voltage ion plating technique
ITO (indium oxide doped with tin) films were deposited on glass substrates by using ITO pellet with a composition of 90 wt.% In2O3 and 10 wt.% SnO2 without extra heating. The post annealing process was done in vacuum with different annealing temperature at 100
200
300 and 400C for 2 hours
respectively. The effects of vacuum annealing on structural
optical and electrical properties of the ITO film deposited by RLVIP were studied in detail. The results showed that the crystalline of the film was improved with the higher temperature. The increase of the annealing temperature improved the infrared reflectivity from 30% to 80% over 8-14m of the infrared atmosphere window
and a simultaneous variation in the optical transmission of the visible spectral region occurred. In addition
sheet resistance of ITO films had contrary changing trend with the IR reflectance
as well.