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浏览/检索结果: 共7条，第1-7条 帮助

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Soil organic matter content prediction using Vis-NIRS based on different wavelength optimization algorithms and inversion models 期刊论文  OAI收割
JOURNAL OF SOILS AND SEDIMENTS, 2023, 卷号: N/A
作者:  Zhou, Wei;  Xiao, Jieyun;  Li, Haoran;  Chen, Qi;  Wang, Ting
  |  收藏  |  浏览/下载：15/0  |  提交时间：2023/05/06
Occurrence frequencies and regional variations in Visible Infrared Imaging Radiometer Suite (VIIRS) global active fires 期刊论文  OAI收割
GLOBAL CHANGE BIOLOGY, 2020, 卷号: 26, 期号: 5, 页码: 2970-2987
作者:  Li, Peng;  Xiao, Chiwei;  Feng, Zhiming;  Li, Wenjun;  Zhang, Xianzhou
  |  收藏  |  浏览/下载：31/0  |  提交时间：2020/05/19
Occurrence frequencies and regional variations in Visible Infrared Imaging Radiometer Suite (VIIRS) global active fires 期刊论文  OAI收割
GLOBAL CHANGE BIOLOGY, 2020, 卷号: 26, 期号: 5, 页码: 2970-2987
作者:  Li, Peng;  Xiao, Chiwei;  Feng, Zhiming;  Li, Wenjun;  Zhang, Xianzhou
  |  收藏  |  浏览/下载：22/0  |  提交时间：2020/05/19
Image enhancement for outdoor long-range surveillance using IQ-learning multiscale Retinex 期刊论文  OAI收割
IET IMAGE PROCESSING, 2017, 卷号: 11, 期号: 9, 页码: 786-795
作者:  Liu, Haoting;  Lu, Hanqing;  Zhang, Yu
  |  收藏  |  浏览/下载：46/0  |  提交时间：2018/03/03
Development and radiance calibration of three-waveband camera (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photonics and Optoelectronics, SOPO 2010, June 19, 2010 - June 21, 2010, Chengdu, China
作者:  Wang J.;  Liu Y.;  Liu Y.;  Sun Q.;  Liu Y.
收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25
An imaging system with three-waveband sharing one lens and an area CCD was developed. By rotating different filters into the beam path  the required waveband was selected. The optical system which can image in ultraviolet  visible and near infrared region was designed and the signal collecting system was integrated. The optical design and system integration have some advantages such as low cost  small size and light in weight. To obtain a high imaging quality  the radiation calibration is carried out in order to establish the relation between the average grey level of output image and the input radiance from the integrating sphere. According to the calibration data in experiments  the radiation dynamic range and the best working point of the system are determined. The experiment result shows that the dynamic range of the image system is maximal when the exposure time is 8ms in ultraviolet  0.5ms in visible and 0.125ms in near infrared region. 2010 IEEE.  
Colloidal building blocks with potential for magnetically configurable photonic crystals 期刊论文  OAI收割
SOFT MATTER, 2007, 卷号: 3, 期号: 10, 页码: 1215
Camargo, PHC; Li, ZY; Xia, YN
收藏  |  浏览/下载：29/0  |  提交时间：2013/09/17
Vacuum annealing effects on properties of ITO films prepared by reactive low voltage ion plating technique (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
作者:  Wang X.;  Wang X.;  Wang X.;  Zheng X.;  Gao J.
收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25
With reactive low voltage ion plating technique  ITO (indium oxide doped with tin) films were deposited on glass substrates by using ITO pellet with a composition of 90 wt.% In2O3 and 10 wt.% SnO2 without extra heating. The post annealing process was done in vacuum with different annealing temperature at 100  200  300 and 400C for 2 hours  respectively. The effects of vacuum annealing on structural  optical and electrical properties of the ITO film deposited by RLVIP were studied in detail. The results showed that the crystalline of the film was improved with the higher temperature. The increase of the annealing temperature improved the infrared reflectivity from 30% to 80% over 8-14m of the infrared atmosphere window  and a simultaneous variation in the optical transmission of the visible spectral region occurred. In addition  sheet resistance of ITO films had contrary changing trend with the IR reflectance  as well.