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Chinese Academy of Sciences Institutional Repositories Grid
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长春光学精密机械与物... [3]
昆明植物研究所 [1]
过程工程研究所 [1]
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合肥物质科学研究院 [1]
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OAI收割 [7]
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期刊论文 [4]
会议论文 [3]
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2023 [1]
2021 [1]
2012 [1]
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High-resolution maps show that rubber causes substantial deforestation
期刊论文
OAI收割
NATURE, 2023
作者:
Wang,Yunxia
;
Hollingsworth,Peter M.
;
Zhai,Deli
;
West,Christopher D.
;
Green,Jonathan M. H.
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2024/05/09
MAINLAND SOUTHEAST-ASIA
NATURAL-RUBBER
HEVEA-BRASILIENSIS
SOUTHWEST CHINA
COLLECT EARTH
GOOGLE EARTH
BOOM CROPS
LAND-COVER
EXPANSION
PLA
Predicting the Risk of Hypertension Based on Several Easy-to-Collect Risk Factors: A Machine Learning Method
期刊论文
OAI收割
FRONTIERS IN PUBLIC HEALTH, 2021, 卷号: 9
作者:
Zhao, Huanhuan
;
Zhang, Xiaoyu
;
Xu, Yang
;
Gao, Lisheng
;
Ma, Zuchang
  |  
收藏
  |  
浏览/下载:52/0
  |  
提交时间:2021/11/01
hypertension
risk prediction
machine learning method
easy-to-collect
lifestyle
EFFICIENT AND COMPREHENSIVE UTILIZATION OF BLAST FURNACE DUST IN METALIZED PELLETIZING PROCESS
期刊论文
OAI收割
METALURGIA INTERNATIONAL, 2012, 卷号: 17, 期号: 4, 页码: 66-69
作者:
Duan, Dongping
;
Han, Hongliang
收藏
  |  
浏览/下载:174/0
  |  
提交时间:2013/11/28
Blast furnace dust
Metalized pelletizing
Volatility behavior
Collect non-ferrous metal
Design of compound Fresnel-R lenses for new high-efficient photovoltaic concentrator (EI CONFERENCE)
会议论文
OAI收割
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII, August 1, 2010 - August 4, 2010, San Diego, CA, United states
作者:
Liu H.
;
Liu H.
;
Liu H.
收藏
  |  
浏览/下载:41/0
  |  
提交时间:2013/03/25
A new design of compound Fresnel-R concentrator is presented which is composed of two lenses: a primary lens (Fresnel lens) that works by total internal reflection at outer facets but refraction at inner facets
and a secondary lens that works by refraction. In contrast to previous Fresnel lens concentrator
this design increases the acceptance angle
improves the irradiance uniformity on the solar cell
and reduces the aspect ratio significantly. Another outstanding advantage of this concentrator is the fact that it mainly works by performing total internal reflection
reducing chromatic dependence as well as Fresnel losses. An optical efficiency more than 80% can be achieved. Moreover
in order to reduce the influence of manufacture accuracy and to increase the optical efficiency further
the central part of the bottom of the secondary lens which directly adhered to the solar cell is designed as a cone-shaped prism to collect the sunlight that doesn't reach the solar cell. 2010 SPIE.
Small roll angle measurement based on auto-collimation and moire fringe (EI CONFERENCE)
会议论文
OAI收割
2009 International Conference on Optical Instruments and Technology - Optoelectronic Measurement Technology and Systems, October 19, 2009 - October 22, 2009, Shanghai, China
Bai X.-G.
;
Cai S.
;
Qiao Y.-F.
;
Dai M.
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2013/03/25
A novel method for small roll angle measurement based on auto-collimation and moire fringe is presented. A right-angle prism is used as an indicator of small roll angle around the optical axis
and a CCD is used to collect moire fringes that are generated by scale grating image which is reflected by prism and index grating. Any small roll angle of the prism will change the include angle of the grating pair and meanwhile induce a change in the moire fringe period. The relationship between roll angle and period of moire fringes is established. The period data is obtained by image processing. The experimental result certifies that the principle of small angle measurement method based on auto-collimation and moire fringe is correct and feasible. The measuring error is smaller than 0.2 within 7 range compared with 0.2 autocollimator. 2009 SPIE.
The signal extraction of fetal heart rate based on wavelet transform and BP neural network (EI CONFERENCE)
会议论文
OAI收割
Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, November 29, 2004 - December 1, 2004, Singapore, Singapore
Hong Y. X.
;
Cheng Z. B.
;
Dai F. H.
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2013/03/25
This paper briefly introduces the collection and recognition of bio-medical signals
the other threading is analyzing data. Using the method
designs the method to collect FM signals. A detailed discussion on the system hardware
it is broaden to analyze the signal in real-time. Wavelet transform to remove the main interference in the FM and by adding time-window to recognize with BP network
structure and functions is also given. Under LabWindows/CVI
Finally the results of collecting signals and BP networks are discussed.8 pregnant women's signals of FM were collected successfully by using the sensor. The correctness rate of BP network recognition is about 83.3% by using the above measure.
the hardware and the driver do compatible
the hardware equipment work properly actively. The paper adopts multi threading technology for real-time analysis and makes use of latency time of CPU effectively
expedites program reflect speed
improves the program to perform efficiency. One threading is collecting data
EXPERIMENTAL SEARCH FOR HIGH ENERGY γ-RAYS IN THE SPONTANEOUS FISSIONS OF ~(252)Cf
期刊论文
OAI收割
A Monthly Journal of Science, 1981, 期号: 10, 页码: 955
作者:
Zhang HQ(张焕乔)
;
Ding SY(丁声耀)
;
Liu ZH(刘祖华)
;
Liu SM(刘绍明)
;
Tang XW(唐孝威)
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2015/12/07
nuclei
fission
spectrometer
emitted
spontaneous
Cf
加比
anode
collect
glassy