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CAS IR Grid
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长春光学精密机械与物... [4]
力学研究所 [1]
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OAI收割 [5]
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会议论文 [4]
期刊论文 [1]
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2023 [1]
2013 [1]
2008 [1]
2006 [2]
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A Review of the Mechanical Properties of Graphene Aerogel Materials: Experimental Measurements and Computer Simulations
期刊论文
OAI收割
MATERIALS, 2023, 卷号: 16, 期号: 5, 页码: 1800
作者:
Qi, Penghao
;
Zhu, Hanxing
;
Borodich, Feodor
;
Peng Q(彭庆)
  |  
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2023/04/20
aerogel
graphene
mechanical properties
computational simulation
experiment measurements
The approximate calculation of atmospheric path radiance in close range and horizontal direction (EI CONFERENCE)
会议论文
OAI收割
2012 International Conference on Sensors, Measurement and Intelligent Materials, ICSMIM 2012, December 26, 2012 - December 27, 2012, Guilin, China
作者:
Sun Z.
;
Chen Y.
;
Zhang Y.
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2013/03/25
Atmospheric path radiance is the key factor in the accuracy of objective radiation measurement. In the traditional radiation character measurements
it is compared with the results of MODTRAN and measurement in experiment. It is revealed that the accuracy of software is 7.8%
under the help of the atmospheric observation equipment
and the formula is 4.9%
MODTRAN and other software likewise
which could demonstrate the validity of the pproximate calculation formula in close range and horizontal direction. In this article
the indeterminacy rate could be around 10~20%
in the process of deducing and experiment
it is highly restricts the measurement accuracy of objective radiation. For this reason
the validity of the approximate calculation formula in close range and horizontal direction is fully proved
it is quite significant to develop the study of measure and calculation in path radiance. The approximate calculation formula for path radiance in close range and horizontal direction is expressed in this article
which supply a new method in approximate calculation of path radiance for objective radiation measurement. (2013) Trans Tech Publications
Switzerland.
Study and calibration of azimuth effect in multi-position strap-down north seeking system (EI CONFERENCE)
会议论文
OAI收割
7th World Congress on Intelligent Control and Automation, WCICA'08, June 25, 2008 - June 27, 2008, Chongqing, China
作者:
Wang Z.
;
Zhao J.
;
Wang Z.
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2013/03/25
In order to reduce the influence of azimuth effect in multi-position strap-down north seeking system
its cause of formation is studied based on the precession principle of the dynamically tuned gyro. A detecting system
composed by true north prism
two Leica theodolites and benchmark prism fixed in the strap-down north seeking system
was designed to calibrate the azimuth effect. By two steps
many measurements are gone on in every position to eliminate the random error. According to the homologous between the error and the position
a sinusoid is made a fit as compensate curve after the error of twelve positions is measured. Then the azimuth effect of the arbitrary position can be corrected by the curve. The experiment result shows that the seeking north standard deviation is only 11.77 after compensation
which is considerably less than the 87.75 without correction. 2008 IEEE.
Low threshold field electron emission of diamond films (EI CONFERENCE)
会议论文
OAI收割
ICO20: Display Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Liu L.
;
Wang W.
;
Wang W.
;
Li M.
;
Liu L.
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
Since CVD diamond film possesses desirable properties
it has been widely investigated
and much research has been made in this field. In this experiment
we mainly studied the characteristics of field emission from the CVD diamond films. The motivation for the experiment is to gain some insight into a possible emission mechanism. The diamond films are grown using a hot filament chemical vapor deposition
basing on the diamond micro-grits on silicon substrates. And the diamond micro-grits are deposited on silicon substrates using electrophoresis coat method
through a solution of diamond micro-grits in ethyl alcohol. This study has revealed that emission can be obtained at fields as low as 1.8V/m. And the field emission measurements were carried out at a pressure of 10-4Pa.
The Simulation measurement experiment and calibration for Solar Total Irradiance Monitor on board (EI CONFERENCE)
会议论文
OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
Yupeng W.
;
Wei F.
;
Bingxi Y.
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2013/03/25
STIM (Solar Total Irradiance Monitor) can be used on sun-synchronous polar orbit weather satellites to measure the total solar irradiance. It contains three independent and identical wide view absolute radiometers. They are mounted on the satellite in an angle which ensure the sun scan over the field of view of the absolute radiometers. This measurement method doesn't need the instrument tracking the sun but the sun scan over the field of view of the absolute radiometers in each orbit cycle. The paper presents the measurement method of simulation for solar irradiance measurement and calibration by mounting the instrument on a two-axis rotation table. By controlling the rotation angle velocity of the instrument in the meridian direction being the same as that of the weather satellite's on orbit
we can measure the solar irradiance when the sun scan over the field of view of the absolute radiometers to simulate the onboard state. And we have operated the measurement with the prototype of STIM. The SIAR-1 is traceable to WRR and serves as a transfer standard. So simultaneous comparison measurements between SIAR-1 and each of the three wide view absolute radiometers are measured to provide calibration corrections to the instrument. And we have a further study at the influence of stray light to the measurement results. This paper presents the method of simulation experiment and calibration for solar irradiance measurement with Solar Total Irradiance Monitor on board.