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CAS IR Grid
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长春光学精密机械与物... [2]
寒区旱区环境与工程研... [1]
水生生物研究所 [1]
昆明植物研究所 [1]
中国科学院大学 [1]
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Root elemental composition in Chinese forests: Implications for biogeochemical niche differentiation
期刊论文
iSwitch采集
FUNCTIONAL ECOLOGY, 2018, 卷号: 32, 期号: 1, 页码: 40-49
作者:
Zhao, Ning
;
Liu, Huiming
;
Wang, Qiufeng
;
Wang, Ruili
;
Xu, Zhiwei
收藏
  |  
浏览/下载:71/0
  |  
提交时间:2019/10/09
biogeochemical niche
community assembly
environment filtering
fine roots
limiting similarity
multi-element composition
phylogenetic signal
Distribution of shrublands in relation to soil and climate in mid-subtropical China
期刊论文
OAI收割
JOURNAL OF PLANT ECOLOGY, 2016, 卷号: 9, 期号: 4, 页码: 393-401
作者:
Li, Jiaxiang
;
Xiong, Gaoming
;
Xu, Wenting
;
Xie, Zongqiang
  |  
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2022/07/08
floristic composition
vegetation-environment relationship
environmental filtering
principal coordinate analysis
Trait-based community assembly of aquatic macrophytes along a water depth gradient in a freshwater lake
期刊论文
OAI收割
FRESHWATER BIOLOGY, 2014, 卷号: 59, 期号: 12, 页码: 2462-2471
作者:
Fu, Hui
;
Zhong, Jiayou
;
Yuan, Guixiang
;
Xie, Ping
;
Guo, Longgen
收藏
  |  
浏览/下载:86/0
  |  
提交时间:2015/01/20
aquatic macrophytes
functional trait
habitat filtering
niche differentiation
trait-environment relationships
Phylogenetic clustering and overdispersion for alpine plants along elevational gradient in the Hengduan Mountains Region, southwest China
期刊论文
OAI收割
JOURNAL OF SYSTEMATICS AND EVOLUTION, 2014, 卷号: 52, 期号: 3, 页码: 280-288
作者:
Li, Xin-Hui
;
Zhu, Xin-Xin
;
Niu, Yang
;
Sun, Hang
收藏
  |  
浏览/下载:42/0
  |  
提交时间:2014/06/23
alpine plants
environment filtering
Hengduan Mountains Region
interspecific competition
phylogenetic structure
Analysis on the influence of random vibration on MEMS gyro precision and error compensation (EI CONFERENCE)
会议论文
OAI收割
2011 3rd International Conference on Mechanical and Electronics Engineering, ICMEE 2011, September 23, 2011 - September 25, 2011, Hefei, China
作者:
Li M.
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  |  
浏览/下载:37/0
  |  
提交时间:2013/03/25
In order to improve its precision in dynamic environment
a Kalman filter was designed. Firstly
two sets of random drift data of MEMS gyro were respectively analysed
and it was found that the variance of random drift under random vibration significantly increased and its mean also changed. Then calculation results show that attitude angle error under random vibration is 2.6
while in the static test it is 0.25. Analysis on the characteristics of random drift was carried out
and it is found that it can be treated as stable
normally distributed random signal. Finally
a corresponding Kalman filter was designed. The results indicated that after filtering the variance of random drift is reduced to 0.0282
26.4% of pre-filtering and the attitude angle error is reduced to 1.5
57.7% of pre-filtering. The above method can effectively compensate for the attitude angle error of MEMS gyro caused by random vibration. This study can be a reference to the application of low-cost MEMS gyro in aircraft navigation. (2012) Trans Tech Publications
Switzerland.
Matching of vehicle gps traces with urban road networks
期刊论文
iSwitch采集
Current science, 2010, 卷号: 98, 期号: 12, 页码: 1592-1598
作者:
Song, Xianfeng
;
Raghavan, Venkatesh
;
Yoshida, Daisuke
收藏
  |  
浏览/下载:39/0
  |  
提交时间:2019/05/10
Data filtering
Low-cost gps
Map matching
Navigation
Urban environment
Inhibition of electromagnetic interference in control system based on DSP of high-power TEA CO2 laser (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
作者:
Meng F.-J.
;
Guo L.-H.
;
Wang H.-Q.
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  |  
浏览/下载:52/0
  |  
提交时间:2013/03/25
The strong electromagnetic interference (EMI) generated in high-power TEA C02 laser system mainly comes from main discharge circuit
pulse spark switch and power supply. Such strong EMI causes great damage and interference to the control system based on DSP. In this paper
we present the interference sources and their distribution and propose the methods of anti-interference. Measures for hardware design include weakening transient ground potential difference by using equipotential lines between devices
using signal isolation interface to inhibit the transient ground potential interference
and rational layout
shielding and filtering to the control system. And methods for software design include range-limited filter
self-diagnosis and self-repair for the critical data and anti-interference during abnormal reset. The EMI has been inhibited effectively by the anti-interference method proposed above. The result shows that: the software anti-interference method is as important as the hardware anti-interference method for the control system in a complex environment of strong EMI. 2010 IEEE.