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	Spatial estimation of the optimum PV tilt angles in China by incorporating ground with satellite data 期刊论文 OAI收割 RENEWABLE ENERGY, 2022, 卷号: 189, 页码: 1249-1258 作者: Liu, Yujun; Yao, Ling; Jiang, Hou; Lu, Ning; Qin, Jun \| 收藏 \| 浏览/下载：20/0 \| 提交时间：2022/09/21 Solar photovoltaic Optimum tilt angle Diffuse fraction Empirical model Adjustment scheme Power yield gain
	Spatial estimation of the optimum PV tilt angles in China by incorporating ground with satellite data 期刊论文 OAI收割 RENEWABLE ENERGY, 2022, 卷号: 189, 页码: 1249-1258 作者: Liu, Yujun; Yao, Ling; Jiang, Hou; Lu, Ning; Qin, Jun \| 收藏 \| 浏览/下载：25/0 \| 提交时间：2022/09/21 Solar photovoltaic Optimum tilt angle Diffuse fraction Empirical model Adjustment scheme Power yield gain
	Optimization of Slope Angle and Its Seismic Stability: A Case Study for the Proposed Open Pit Coalmine in Phulbari, NW Bangladesh 期刊论文 OAI收割 Journal of Mountain Science, 2013, 卷号: 10, 期号: 6, 页码: 976-986 Md. Rafiqul ISLAM; Mohammed Omar FARUQUE 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/11/26 Open pit coalmine Optimum slope angle Safety factor Seismic stability
	Fabrication of high-efficiency ultraviolet blazed gratings by use of direct Ar2-CHF3 ion-beam etching through a rectangular photoresist mask (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China Tan X. 收藏 \| 浏览/下载：25/0 \| 提交时间：2013/03/25 In ultraviolet spectroscopy groove irregularity and surface roughness of nanometer magnitude can cause a significant loss of diffraction efficiency. Therefore there is a constant need to improve the diffraction efficiency. A blazed grating can concentrate most of the light intensity into a desired diffraction order it is important to control the groove shape precisely so it is the optimum choice among gratings of different kinds of profile. As the operating wavelength of most UV spectral applications is less than 200 nm especially the blaze angle and the apical angle. We have presented a direct shaping method to fabricate EUV blazed gratings by using an ion-beam mixture of Ar+ and CHF2 +to etch K9 glass with a rectangular photoresist mask. With this method the required blaze angle is small we have succeeded in fabricating well-shaped UV blazed gratings with a 1200 line/mm groove density and 8.54 blaze angles and 1200 line/mm groove density and 11.68 blaze angles and the metrical efficiency is about 81% and 78%. The good performance of the gratings was verified by diffraction efficiency measurements. When one uses the etching model the conditions on the ion-beam grazing incident angle and the CHF3partial pressure should be noted. Besides since the etched groove shape depends on the aspect ratio of the photoresist mask ridge if we wish to fabricate larger gratings with this method we must improve the uniformity of the photoresist mask before ion-beam etching. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
	3R intersection target positioning in real time based on distance (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 Nengwei W.; Juan C.; Jian C. 收藏 \| 浏览/下载：13/0 \| 提交时间：2013/03/25 The positioning error based on angle angle-distance or single station positioning increases with the distance increasing. 3R target positioning based on distance can obtain the high precision measurements in long distance. Here we give the 3R model for the intersection positioning provide the two necessary conditions for getting the optimum intersection point. The experimental results show that the intersection precision based on angle is over 2m and will degrade greatly with the increasing of distance while the one based on 3R model will improve and the error decrease gradually. That the precision of the distance measurement is about 1m means the 3R model is better than the angle positioning which can compensate the drawbacks of the angle positioning at short distance. 2010 IEEE.
	A sensitive solid-phase time-resolved fluorescence immunoassay apparatus (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: 收藏 \| 浏览/下载：37/0 \| 提交时间：2013/03/25 In the device a He-Ne laser of flash frequency 1-20 Hz was adopted as exciting light source and three key technical problems have been solved successfully in order to enhance the detecting sensitivity and measuring stability of the device for time-resolved fluorimmunoassays(TRFIA) [1]. The first one is to design optimum exciting optical system so that the exciting light beam excite the sample most effectively. The second one is to have a project spectrum filter which can reduce the affection of the background light to the photomultiplier tube and also ensure influence of the stray light and mixed diffusion light to the sample fluorescence to the least the sample fluorescence through the integrating sphere and come to the grating monochromator The right wavelength will be chosed through changing the angle of incidence of the grating monochromator. The third one is to simulate the principle of sample averaging of BOXCAR averager. In the device SCM was used as primary controller and CPLD was used as timing controller. Through the preparation process signal-to-noise ratio(SNR) will be improved also adjust delay time ampling frequency and sampling number arbitrarily. By testing the sensitivity is 10-12mol/L(substance marked by Eu3+) examination repeat is &le2.5% examination linearity is from 10 -8mol/L to 10-12mol/L correlation coefficient is 99.98%(p&le0.01). The instrument is advanced for ultrasensitive detection of antigen and antibody and solve the tumor genetic variation the virus protein detection. 2009 SPIE.
	About the optimum view zenith angle for estimating sensible heat flux from surface temperature 会议论文 OAI收割 Igarss 2003: Ieee International Geoscience and Remote Sensing Symposium, Vols I - Vii, Proceedings: Learning from Earth's Shapes and Sizes, New York Xin, XZ; Chen, LF; Liu, QH; Tian, GL; Liu, Q; Xin, JF 收藏 \| 浏览/下载：22/0 \| 提交时间：2014/12/07 optimum angle radiative surface temperature sensible heat flux optimum fraction SPARSE CROPS VEGETATION