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CAS IR Grid
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长春光学精密机械与物... [4]
生态环境研究中心 [2]
地理科学与资源研究所 [1]
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OAI收割 [7]
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会议论文 [4]
中文期刊论文 [1]
学位论文 [1]
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2022 [1]
2021 [1]
2015 [1]
2010 [2]
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Iron oxide nanoparticles oxidize transformed RAW 264.7 macrophages into foam cells: Impact of pulmonary surfactant component dipalmitoylphosphatidylcholine
期刊论文
OAI收割
CHEMOSPHERE, 2022, 卷号: 300, 期号: 0, 页码: 134617
作者:
Li, Haidong
;
Tao, Xiaoqi
;
Song, Erqun
;
Song, Yang
  |  
收藏
  |  
浏览/下载:151/0
  |  
提交时间:2022/11/08
OXIDATIVE STRESS
LIPID-ACCUMULATION
HYDROXYL RADICALS
INHALATION
LIPOPROTEIN
STABILITY
EXTRACTS
PROTECT
SILICA
MODEL
天然林资源保护工程综合效益评价研究
学位论文
OAI收割
北京: 中国科学院大学;中国科学院生态环境研究中心, 2021
作者:
杨师帅
  |  
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2022/06/22
天然林资源保护工程,生态系统服务,综合效益,效益费用分析
natural Forest Protect Project, Ecosystem Services, Comprehensive Benefit, cost-Benefit Ratio.
气候变化的影响:温水青蛙还是灾难临头?
中文期刊论文
OAI收割
2015
作者:
王劲峰
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2015/12/18
气候变化
伦敦大学学院
Montgomery
医学期刊
科学研究中心
地球系统
公共健康
极端事件
protect
空间变异
Image deblurring with adaptive total variation model (EI CONFERENCE)
会议论文
OAI收割
International Conference on Image Processing and Pattern Recognition in Industrial Engineering, August 7, 2010 - August 8, 2010, Xi'an, China
作者:
Zhang X.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2013/03/25
In this paper the models of blurring and methods of deblurring are introduced. A kind of nonlinear image deblurring approach is discussed
which comes from constrained optimization total variation approaches. An adaptive TV model method of image deblurring based on common TV model methods is proposed. The experimental results indicate that the proposed method can protect the details of the blurry image more efficiently and satisfy some deblurring requirements more adaptively. 2010 SPIE.
The novel facet coating technology for 808nm semiconductor laser (EI CONFERENCE)
会议论文
OAI收割
2010 Academic Symposium on Optoelectronics and Microelectronics Technology and 10th Chinese-Russian Symposium on Laser Physics and Laser Technology, RCSLPLT/ASOT 2010, July 28, 2010 - August 1, 2010, Harbin, China
作者:
Liu Y.
;
Qin L.
;
Li Z.
;
Li Z.
;
Wang L.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2013/03/25
A novel facet coating technology is presented by studying catastrophic optical mirror damage mechanism of semiconductor laser. In this technology
semiconductor laser are cleaved in the air
and the surface oxide layer is removed with a low energy ion source
flowed immediately by coating the facet with thin ZnSe layer of 20 nm. The function of this layer is to protect semiconductor laser facet
and prevent impurity particles diffusing to the facet. Finally the facet is coated with oxidative optical film. The test results show that the output power of the semiconductor laser with the ZnSe coated layer is 13% higher than that of the Si coated layer
and 47% higher than that of the oxide coated film. The device coated oxide film is damaged when current is 4.5 A
and the device coated with Si layer is damaged when current is 5.5 A
the final failed device is coated with ZnSe layer. In conclusion
the method of coating ZnSe layer on the semiconductor laser facet can prevent effectively the catastrophic optical mirror damage
and increase the output power of semiconductor lasers. 2010 IEEE.
Ultraviolet photodetector fabricated from atomic-layer-deposited ZnO films (EI CONFERENCE)
会议论文
OAI收割
Shan C. X.
;
Zhang J. Y.
;
Yao B.
;
Shen D. Z.
;
Fan X. W.
;
Choy K. L.
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/03/25
Zinc oxide (ZnO) films have been prepared on glass substrate in layer-by-layer mode using an atomic-layer deposition (ALD) technique
and a metal-semiconductor-metal structured photodetector has been fabricated on the ZnO films employing interdigital Au as metal contacts. The photodetector shows a cutoff wavelength at around 390 nm and has an obvious responsivity in the whole UVA spectral range. Because the response of the ZnO photodetector covers the whole UV solar irradiation that can reach the earth
the photodetector promises to be useful in monitoring UV solar irradiation to protect people from harm caused by the solar irradiation. Furthermore
the capability of preparing large-area uniform ZnO films of ALD makes it favorable for possible mass production of this kind of photodetector. 2009 American Vacuum Society.
All-solid-stated laser controller design based on digital optical feedback (EI CONFERENCE)
会议论文
OAI收割
Lasers in Material Processing and Manufacturing II, November 10, 2004 - November 12, 2004, Beijing, China
作者:
Liu L.
;
Wang J.-L.
;
Wang J.-L.
;
Liu L.
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2013/03/25
The new design about a CW
digital all-solid-stated LD pumped Nd:YVO 4 controller is introduced. The stable output power of this digital laser controller which adopts Digital Signal Processor(TMS320C31) is approximately 20mW. The whole system is composed of constant- current source
protection circuit
pulse-width modulation circuit
Si-photo-detector and amplified circuit and Digital Signal Processor control system
etc. In terms of error deviation Based on nonlinear control curves of LD power output by Si-photo-detector
the region control can be obtained by means of the PID control algorithm in the software platform
that is
error amendment and high stability laser power output can be achieved. And the precision of temperature control can reduce from 0.2C to 0.04C. By adopted integral separated mode PID control algorithm
the LD output power instability ( %) down to 2%. By way of adopting the new digital design
the work to protect the laser diode
including the continuous adjustable output power with high accuracy and stability
is easily obtained. The internal-external modulation control of the laser power based on digital optical feedback can be accomplished with stable power output. At last
the bringing reasons of noise are analyzed and the solving methods are put forward in this paper.