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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
地理科学与资源研究所 [3]
成都山地灾害与环境研... [1]
国家空间科学中心 [1]
长春光学精密机械与物... [1]
寒区旱区环境与工程研... [1]
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OAI收割 [6]
iSwitch采集 [1]
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期刊论文 [6]
会议论文 [1]
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2024 [1]
2018 [3]
2011 [1]
2009 [1]
2007 [1]
学科主题
空间物理 [1]
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Contrasting effects of crop straw and green manure amendments on soil gross N transformations in a soil-maize system: a short-term
15
N incubation case study
期刊论文
OAI收割
PLANT AND SOIL, 2024, 页码: 14
作者:
Wang, Xingling
;
Zhou, Minghua
;
Zhu, Bo
;
Zhang, Jinbo
;
Mueller, Christoph
  |  
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2025/01/24
Gross N transformation rates
Organic amendments
N-15 tracing study
Soil N retention
Plant feedback effects
Vertical distributions and source identification of the radionuclides (PU)-P-239 and Pu-240 in the sediments of the Liao River estuary, China
期刊论文
OAI收割
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2018, 卷号: 181, 页码: 78-84
作者:
Zhang, Kexin
;
Pan, Shaoming
;
Liu, Zhiyong
;
Li, Guosheng
;
Xu, Yihong
  |  
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2019/09/25
Plutonium
Pu-240/Pu-239 atom ratio
Tracing study
Liao River estuary
Vertical distributions and source identification of the radionuclides (PU)-P-239 and Pu-240 in the sediments of the Liao River estuary, China
期刊论文
OAI收割
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2018, 卷号: 181, 页码: 78-84
作者:
Zhang, Kexin
;
Pan, Shaoming
;
Liu, Zhiyong
;
Li, Guosheng
;
Xu, Yihong
  |  
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2019/09/25
Plutonium
Pu-240/Pu-239 atom ratio
Tracing study
Liao River estuary
Vertical distributions and source identification of the radionuclides (PU)-P-239 and Pu-240 in the sediments of the Liao River estuary, China
期刊论文
OAI收割
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2018, 卷号: 181, 页码: 78-84
作者:
Zhang, Kexin
;
Pan, Shaoming
;
Liu, Zhiyong
;
Li, Guosheng
;
Xu, Yihong
  |  
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2019/09/25
Plutonium
Pu-240/Pu-239 atom ratio
Tracing study
Liao River estuary
A Three-Dimensional Ray Tracing Study on Whistler-Mode Chorus During Geomagnetic Activities
期刊论文
OAI收割
PLASMA SCIENCE & TECHNOLOGY, 2011, 卷号: 13, 期号: 4, 页码: 440-445
作者:
Zhou Qinghua
;
Shi Jiankui
;
Xiao Fuliang
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2014/12/15
3-D ray tracing study
whistler-mode chorus
geomagnetic activities
Analysis of laser jamming to satellite-based detector (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China
作者:
Guo L.-H.
;
Guo R.-H.
;
Wang S.-W.
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2013/03/25
The reconnaissance satellite
communication satellite and navigation satellite used in the military applications have played more and more important role in the advanced technique wars and already become the significant support and aid system for military actions. With the development of all kinds of satellites
anti-satellite laser weapons emerge as the times require. The experiments and analyses of laser disturbing CCD (charge coupled detector) in near ground have been studied by many research groups
but their results are not suitable to the case that using laser disturbs the satellite-based detector. Because the distance between the satellite-based detector and the ground is very large
it is difficult to damage it directly. However the optical receive system of satellite detector has large optical gain
so laser disturbing satellite detector is possible. In order to determine its feasibility
the theoretical analyses and experimental study are carried out in the paper. Firstly
the influence factors of laser disturbing satellite detector are analyzed in detail
which including laser power density on the surface of the detector after long distance transmission
and laser power density threshold for disturbing etc. These factors are not only induced by the satellite orbit
but dependence on the following parameters: laser average power in the ground
laser beam quality
tracing and aiming precision and atmospheric transmission. A calculation model is developed by considering all factors which then the power density entering into the detector can be calculated. Secondly
the laser disturbing experiment is performed by using LD (laser diode) with the wavelength 808 nm disturbing CCD 5 kilometer away
which the disturbing threshold value is obtained as 3.5510-4mW/cm2 that coincides with other researcher's results. Finally
using the theoretical model
the energy density of laser on the photosensitive surface of MSTI-3 satellite detector is estimated as about 100mW/cm2
which is largely exceed the disturbing threshold and therefore verify the feasibility of using this kind of laser disturbing the satellite-based detector. According to the results. using the similar laser power density absolutely saturate the requirements to laser disturbing satellite-based detector. If considering the peak power of pulsed laser
even decrease laser average power
it is also possible to damage the detector. This result will provide the reliable evidences to evaluate the effect of laser disturbing satellite-based detector. 2009 SPIE.
Wind tunnel test and Cs-137 tracing study on wind erosion of several soils in Tibet
期刊论文
iSwitch采集
SOIL & TILLAGE RESEARCH, 2007, 卷号: 94, 期号: 2, 页码: 269-282
作者:
Zhang, Chun-Lai
;
Zou, Xue-Yong
;
Yang, Ping
;
Dong, Yu-Xiang
;
Li, Sen
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2019/10/08
Tibet
soil wind erosion
wind tunnel test
Cs-137 tracing study
soil erodibility by wind
soil erosion modulus
rate of soil wind erosion